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The smarter way to find Furnace Repair contractors

A malfunctioning furnace can disrupt your comfort and daily life. HVACCompaniesHub.com connects you with qualified furnace repair technicians in USA. Here's why we're the best resource for your furnace repair needs: : We take the stress out of finding the right HVAC contractors. Here's how:

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Our directory includes specialists providing a wide range of furnace services, including inspections, cleaning, and repairs of all major components. No matter the issue, we can help you find a qualified professional to get your furnace back in top condition.
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Furnace Repair Glossary

Understanding common furnace terms can help you communicate effectively with HVAC technicians.

Furnace

A furnace is a appliance that heats air and distributes it throughout your home or business through ductwork. The furnace heats air, which is then circulated by a blower motor through ducts to warm different areas of the building.

AFUE (Annual Fuel Utilization Efficiency)

AFUE is a rating of how efficiently a furnace converts fuel to heat. Look for a furnace with a high AFUE for maximum savings on fuel costs. Modern high-efficiency furnaces have AFUE ratings of 90% or higher.

Heat Exchanger

A critical part of a furnace, a component that transfers heat from the burning fuel to the air that circulates through your home.. A cracked heat exchanger is dangerous because it can leak carbon monoxide, a poisonous gas, into your home. It's important to have your heat exchanger inspected annually by a qualified HVAC technician.

Blower Motor

The blower motor is the component in a furnace responsible for circulating the heated air throughout the house. A properly functioning blower is vital for even heating.

Burner

The burner is the part of the furnace where the fuel (gas, oil, or propane) is ignited to generate heat. It plays a critical role in the overall heating process.

Pilot Light/Ignition System

Older furnaces use a pilot light, a small, continuous flame, to ignite the burner when the thermostat calls for heat. Modern furnaces usually have electronic ignition systems, which are more reliable and efficient. Problems with the pilot light or ignition system are common causes of furnace malfunctions.

Thermostat

The thermostat is where you set your desired temperature. Programmable thermostats allow you to set temperature schedules.

Ductwork

Ducts are the passages that carry heated air from the furnace to the various rooms in your home.. Leaking, damaged, or poorly insulated ductwork can reduce the efficiency of your furnace.

Filter

The furnace filter traps dust, pollen, and other particles from the air that circulates through your HVAC system, improving indoor air quality.. It's important to change the filter every 1-3 months.

Limit Switch

A safety device that shuts off the furnace if it gets too hot. Check this switch if your furnace is shutting down frequently.

Flame Sensor

The flame sensor detects whether the burner is lit. . If the flame sensor doesn't detect a flame, it prevents a gas buildup. A faulty sensor can trigger safety shutdowns.

Draft Inducer Motor/Fan

Used in many modern furnaces, the draft inducer pulls exhaust gases from the furnace and expels them through the vent pipe. A faulty draft inducer motor can cause the furnace to shut down.

Capacitor

The capacitor is an electrical component that stores energy and provides a boost of power to start the blower motor and other components.. A failing capacitor is a common cause of furnace problems and may need to be replaced.

Control Board

This component is the 'brain' of the system, controlling all the furnace's functions and components.. It is a core part of the system's functionality.

HVAC Technician

A licensed professional who specializes in the installation, repair, and maintenance of heating, ventilation, and air conditioning systems.

Frequently Asked Questions about Furnace Repair

Having problems with your heating system? Get answers to common questions about furnace repair so you can make informed decisions.

How much does furnace repair cost?

The cost of furnace repair varies depending on several factors, including: the extent of the damage, the cost of parts, and labor rates in your area. It's always recommended to get multiple quotes from different companies to compare prices. Look for companies that offer transparent and upfront pricing.

What are the most common furnace problems?

Common furnace problems can include::
  • No Heat or Reduced Heat Output: This can be caused by a faulty thermostat, a clogged air filter, or a malfunctioning igniter.
  • Strange Noises: Unusual sounds like banging, squealing, or rumbling can indicate problems with the blower motor, igniter, or other components.
  • Short Cycling: This is when the furnace turns on and off too frequently, which can be caused by a faulty thermostat, an overheating furnace, or a clogged air filter.
  • Pilot Light/Ignition Problems: In older furnaces, a faulty pilot light can prevent the furnace from igniting. In newer furnaces, issues with the electronic ignition system can cause similar problems.
  • Blower Motor Issues: If the blower motor isn't functioning, your furnace may not distribute heat properly. A faulty blower motor should be addressed by a technician.
  • Dirty Air Filter: A clogged air filter reduces airflow and decreases furnace efficiency. . It can also cause overheating and damage..
  • Cracked Heat Exchanger: This is a serious safety hazard, as it can lead to carbon monoxide leaks. This is considered an emergency.
If you are experiencing any of these issues, it is important to contact a qualified HVAC professional for diagnosis and repair.

How often should I change my furnace filter?

It's recommended to change your furnace filter every 1-3 months, or more often if you have pets, allergies, or live in a dusty area. Regularly replacing filters is simple and helps prevent many furnace problems. A clogged filter makes your furnace work harder, wasting energy and shortening its lifespan.

How do I find a good furnace repair company?

Finding a reliable furnace repair company is crucial. Look for companies that are::
  • Licensed and Insured: Ensure the company has proper credentials to operate in your area.
  • Experienced: Choose a business with certified technicians. Consider technicians who specialize in your system's make and model.
  • Reputable: Check online reviews and ratings to gauge the company's reputation and customer satisfaction. Look for companies with positive reviews from previous clients.
  • Transparent Pricing: Choose a company that offers clear, upfront pricing and provides written estimates.
  • Available 24/7 (for emergencies): If you experience a furnace breakdown outside of regular business hours, make sure the company offers 24/7 emergency repair service.
HVACCompaniesHub.com helps you connect with pre-screened, qualified furnace repair companies near you.

What are the signs that my furnace needs to be replaced?

If your furnace is exhibiting any of the following signs, it may be time for a replacement:
  • Age: If your furnace is 15-20 years or older, it is likely nearing the end of its lifespan and more expensive to operate.
  • Frequent Repairs: If your furnace requires frequent and costly repairs, it may be more economical to replace it than to keep repairing it.
  • Increasing Energy Bills: A significant increase in your heating bills might suggest that your furnace is losing efficiency.
  • Inconsistent Heating: Uneven temperatures throughout your house could mean your furnace is no longer distributing heat evenly.
  • Strange Noises: Listen for odd noises coming from the unit.
  • Yellow Flame: A healthy furnace flame should be blue. A yellow flame suggests the presence of carbon monoxide, which is a serious safety hazard. If you see a yellow flame, contact a qualified HVAC technician immediately.
  • Dry Air: If you notice excessive dryness, a new furnace could provide increased comfort.
If you notice one or more of these warning signs, have a qualified HVAC technician inspect your furnace.

How do I maintain my furnace?

Proper care to keeping your furnace running efficiently and safely and avoiding breakdowns. Here are some essential steps for furnace maintenance:
  • Change or Clean Air Filters: Change your furnace air filter at least every three months, or more often if needed. If you have pets or allergies, changing the filter every month is recommended.
  • Annual Inspection and Tune-Up: Before the heating season begins, it's recommended to have a qualified technician perform an annual inspection and tune-up. This will ensure all components are functioning correctly and identify any potential problems.
  • Clean the Area Around the Furnace: Keep the area around your furnace clean and free of debris. Maintain a clear space around the furnace for optimal operation.
  • Check the Thermostat: Make sure your thermostat is working correctly and set to the desired temperature.
  • Inspect Ductwork: Inspect your ductwork for any leaks or damage and seal them promptly to prevent energy loss and maintain efficient airflow.
By following these maintenance tips, you can keep your furnace in good working condition, improve indoor air quality, and avoid unexpected breakdowns. .

What is a furnace tune-up?

A furnace tune-up is an annual checkup performed by a qualified HVAC technician that assesses the furnace's condition, cleans vital parts, and makes any necessary adjustments. A typical tune-up involves several checks and maintenance tasks, which often include:
  • Inspecting and cleaning the burners
  • Checking the heat exchanger for cracks or leaks
  • Inspecting the blower motor and fan
  • Checking the flue pipe for proper venting
  • Testing the safety controls
  • Lubricating moving parts
  • Checking refrigerant levels (for heat pumps)
  • Testing for carbon monoxide leaks
Annual tune-ups maximize the life and efficiency of your furnace.

How do I reset my furnace?

Before calling for repairs, consider resetting your furnace. Here's how to reset most furnaces:
  1. Turn off the furnace: Set the thermostat to the 'off' position.
  2. Turn off the power: Locate the circuit breaker for your furnace and switch it off.
  3. Wait: Wait at least 30 seconds, though longer is sometimes recommended for the system to fully power down.
  4. Turn the power back on: Flip the circuit breaker back to the 'on' position.
  5. Turn on the furnace: Turn the thermostat back on and set it to your desired temperature.
If the problem persists after the reset, don't attempt to diagnose or repair the issue yourself.

How can I tell if my furnace is the correct size for my home?

A correctly sized furnace is crucial for efficient and comfortable heating. An too-small furnace will constantly run and struggle to heat your home effectively, especially in cold weather.. An oversized furnace will cycle on and off too frequently, wasting energy and shortening the system's lifespan.. Here are some signs your furnace may be improperly sized:
  • High Energy Bills: An oversized furnace can cause increased energy consumption.
  • Inconsistent Temperatures: Noticeable temperature differences between rooms.
  • Short Cycling: If your furnace cycles frequently, it may not be heating your space efficiently and wasting energy.
  • Poor Air Quality: If the airflow from the vents seems weak or there are hot and cold spots, the unit may be the wrong size.
  • Excessive Noise: Oversized furnaces can make loud or unusual sounds
A qualified technician will be able to assess your home's heating needs. Ask a professional for a load calculation to confirm appropriate sizing. Installing the correct size unit will maximize efficiency and minimize energy bills.

What is the average lifespan of a furnace?

The average lifespan of a furnace is around 15-20 years. How long your particular furnace will last depends on several factors, including::
  • Maintenance: Regular maintenance significantly impacts the lifespan of your furnace. A preventative maintenance plan can make your furnace more reliable.
  • Usage: Frequent or continuous use puts more strain on your system.
  • Quality: Higher-quality furnaces from reputable brands are typically more durable.
  • Proper Installation: Correct installation is crucial for optimal performance and longevity..
An older furnace may require more repairs and cost more to operate.

What is the difference between a single-stage and two-stage furnace?

Single-stage and two-stage furnaces differ in their heating output capabilities:
Single-stage furnaces operate at only one output level – full capacity. This may cause uneven heating and fluctuating bills because the temperature fluctuates more than with two-stage furnaces.
Two-stage furnaces can run at both low and high speed. They work by running at a lower speed most of the time and switching to high speed when necessary.Two-stage furnaces provide enhanced home comfort and energy savings compared to single-stage models.

What are the different types of furnaces?

The most common types of furnaces are classified by their fuel source:
  • Natural Gas Furnaces: These are the most popular type, fueled by natural gas, which is generally readily available and relatively affordable in many areas. Natural gas furnaces tend to be efficient and have lower operating costs compared to oil or propane furnaces.
  • Propane Furnaces: Propane furnaces are similar to natural gas furnaces These are a good option in areas where natural gas isn't accessible.
  • Oil Furnaces: Oil furnaces burn heating oil as fuel, which is stored in a tank. They require more maintenance and tend to be less efficient than gas furnaces.
  • Electric Furnaces: Electric furnaces are fueled by electricity. They are typically less expensive to purchase than gas furnaces, but they can be more expensive to operate depending on your electricity rates.
An HVAC professional can help you determine the best type of furnace for your home or business.

What is an AFUE rating?

AFUE stands for Annual Fuel Utilization Efficiency. AFUE helps consumers compare the efficiency of different furnace models. It's a percentage reflecting how much of the energy in the fuel becomes heat for your space. For instance, a furnace with a 95% AFUE rating converts 95% of the fuel's energy into usable heat, while the remaining 5% is lost as exhaust gases.. Higher AFUE ratings mean greater efficiency and lower heating costs. The minimum AFUE rating for new furnaces is 80%, but high-efficiency models can have AFUE ratings of 90% to 98% or more.

What is a heat exchanger in a furnace?

The heat exchanger is a vital component in a furnace. It warms the air blown into your home. The heat exchanger also acts as a barrier between the combustion gases and the circulating air, preventing harmful gases, such as carbon monoxide, from leaking into your living space.. Regularly checking and cleaning your heat exchanger and scheduling professional maintenance are crucial for ensuring its proper function, preventing cracks, and maximizing its lifespan.

What causes a furnace to stop working?

There are several reasons why your furnace might stop working, ranging from simple issues to more complex problems. Some of the most common causes include::
  • Lack of power: Check the circuit breaker to ensure the furnace is receiving power. A tripped breaker is a common and easily resolved problem.
  • Thermostat problems: Check that the thermostat is set correctly to 'heat' and at a temperature higher than the current room temperature. Replace batteries if the display is blank or not working. Try resetting the thermostat or replacing the batteries. If that doesn't solve the problem, the thermostat may need to be replaced.
  • Clogged air filter: A clogged air filter can restrict airflow and prevent the furnace from working efficiently.. Try replacing the filter.
  • Ignition problems: Issues with the igniter or pilot light can prevent the furnace from starting. In newer furnaces, electronic ignition systems control this process and should be checked if there are problems.
  • Blower motor issues: The blower motor is crucial to distributing warm air throughout your home. If the blower motor is broken, the furnace may not produce enough heat.
  • Gas supply problems (for gas furnaces): Make sure the gas supply valve to the furnace is turned on.. Check that there are no gas leaks.
  • Other component failures: Other components, such as the heat exchanger, flame sensor, control board, or limit switch, can also cause furnace malfunctions..
If you cannot identify or resolve the issue yourself, contact a qualified HVAC technician for diagnosis and repair .

How often should I get my furnace inspected?

It's recommended to get your furnace inspected annually , to prepare for colder months. Preventative inspections also optimize furnace function and reduce the likelihood of emergencies.

How can I improve the efficiency of my furnace?

Here are several tips for increasing furnace efficiency:
  • Change Air Filters Regularly: A clean air filter improves airflow, allowing your furnace to work more efficiently. Change filters monthly during peak heating and cooling seasons.
  • Schedule Annual Maintenance: An annual tune-up by an HVAC technician includes inspection, cleaning, and adjustments to improve efficiency.
  • Seal Air Leaks: Seal any air leaks in your home's ductwork, windows, and doors. This will prevent heated air from escaping and cold air from entering, reducing the workload on your furnace.
  • Upgrade Insulation: Make sure your home has adequate insulation in attics, walls, and floors to reduce heat loss.
  • Use a Programmable Thermostat: Lower the thermostat setting at night or when you're away to save energy..
  • Consider Zoning: Zoning divides your home into separate zones, each with individual temperature control, allowing for custom climate regulation.

How do I know when it's time to replace my furnace?

Consider these indicators that your furnace might need replacing:
  • Age: If your furnace is 15-20 years old or older, it's likely time to consider a replacement.
  • Frequent Repairs: Multiple repairs, especially costly ones, suggest it's more economical to invest in a new, more reliable unit..
  • High Energy Bills: A noticeable increase in your heating bills could mean an inefficient furnace.
  • Uneven Temperatures: If some rooms in your house are colder than others, it could be a sign of problems with your furnace or ductwork.
  • Strange Noises: Unusual or loud sounds can signal problems with the blower motor, igniter, or other components..
  • Yellow or Flickering Burner Flame: A healthy furnace flame should be blue. A yellow or flickering flame can indicate a problem with the burners, insufficient airflow, or a dangerous carbon monoxide leak. This should be addressed right away.
  • Dry or Dusty Air: An old furnace can contribute to dry, dusty indoor air. Upgrading your system can improve comfort and IAQ.
Don't ignore potential furnace problems.

What is a pilot light?

A pilot light is a tiny flame used in older furnaces. When the thermostat signals for heat, the pilot light ignites the main burners, heating the air. . While pilot lights are generally reliable, they can sometimes go out or malfunction, requiring relighting or repair. They also consume a small amount of gas continuously, even when the furnace is not actively heating. .

How do I relight my furnace's pilot light?

If your furnace has a pilot light and it won't stay lit, you can try relighting it by following the manufacturer's directions on the furnace. However, if you're not comfortable working with gas or if you don't feel safe doing it, it's always best to contact a qualified HVAC technician. If you smell gas, leave your home immediately and call your gas company or emergency services. .

Why is my furnace making strange noises?

Strange noises from your furnace can indicate a variety of problems, it's important to pay attention to these sounds to identify potential issues early on:
  • Banging or popping: Could indicate dirty burners, delayed ignition, or expanding ducts.
  • Squealing or screeching: Often indicates an issue with the blower motor or other moving parts.
  • Rumbling or vibrating: Might suggest a loose or damaged component or a problem with the burner.
  • Clicking: May be from the igniter, but it can also come from other electrical problems Electrical issues can be hazardous, so contact a professional.
  • Whining: Often caused by a problem with the blower motor or inducer motor.
Addressing the issue early can often save you from a larger expense later.

Why is my furnace blowing cold air?

Several problems can cause your furnace to blow cold air::
  • Pilot light or ignition problems: If the pilot light is out, the burners won't light, and the furnace won't produce heat. In newer furnaces, a faulty electronic ignition system can prevent the burners from igniting.
  • Thermostat issues: An incorrectly set or malfunctioning thermostat can prevent the furnace from turning on or make it cycle improperly. Check your thermostat settings is set correctly and is sending a signal to the furnace to turn on.
  • Overheating: If the furnace overheats, it could activate a limit switch. This is typically caused by a restricted airflow, often due to a dirty air filter.
  • Ductwork problems: Seal any ductwork leaks to improve performance. Poorly insulated or leaky ducts can cause a variety of heating issues.
If your furnace is blowing cold air, it's important to troubleshoot the problem and, if necessary, call a qualified HVAC technician for repair.

How do I find a qualified furnace repair technician near me?

Finding a qualified and trustworthy furnace repair technician is essential for ensuring your heating system is properly diagnosed and repaired. HVACCompaniesHub.com simplifies the process by connecting you with licensed and experienced professionals in your area. Use our directory to search for furnace repair specialists in USA and compare their qualifications, reviews, and services. We'll help you find the perfect match for your furnace repair project.

What are some tips for maintaining my furnace?

Regular furnace maintenance is key to preventing costly repairs and ensuring its efficient operation. Here are some tips:
  • Change the air filter regularly (every 1-3 months): A dirty filter restricts airflow, reducing efficiency and potentially damaging the system.
  • Schedule an annual furnace tune-up: A professional technician can inspect, clean, and test all components, ensuring optimal performance and safety.
  • Keep the area around the furnace clear: Remove any flammable materials or obstructions that could block airflow.
  • Check and clean the furnace vents: Make sure vents are not blocked by furniture or other items.
  • Install a programmable thermostat: This helps optimize heating schedules and save energy.
  • Seal air leaks around windows and doors: This prevents heat loss and improves efficiency.
Proactive maintenance can prevent unexpected breakdowns and reduce energy bills.

How much does furnace repair cost?

The cost of furnace repair varies depending on several factors, including: the specific problem, the age and model of your furnace, your location, and the HVAC company you choose. It's always recommended to get multiple quotes from different companies to compare prices. Be wary of unusually low quotes, as they may indicate subpar service or hidden fees.

What are the most common furnace problems?

Common furnace problems range from minor issues to major system failures, such as:
  • No Heat or Reduced Heat Output: This can be caused by a faulty thermostat, a clogged air filter, or a malfunctioning igniter.
  • Strange Noises: Unusual sounds like banging, squealing, or rumbling can indicate problems with the blower motor, igniter, or other components.
  • Short Cycling: This is when the furnace turns on and off rapidly, reducing efficiency and potentially causing damage.
  • Pilot Light/Ignition Problems: Make sure your pilot light is on, or your ignition system is functioning correctly.
  • Blower Motor Issues: If the blower motor isn't functioning, your furnace may not distribute heat properly. A malfunctioning blower motor can cause reduced airflow, uneven temperatures, and loud noises. requires attention.
  • Dirty Air Filter: A clogged air filter restricts air circulation. It can also cause overheating and damage..
  • Cracked Heat Exchanger: This is a serious safety hazard, as it can lead to carbon monoxide leaks. A cracked heat exchanger needs to be repaired or replaced immediately.
If you are experiencing any of these issues, it is important to contact a qualified HVAC professional for diagnosis and repair.

How often should I change my furnace filter?

It's recommended to change your furnace filter at least quarterly, or more often if you have pets, allergies, or live in a dusty area. A clean furnace filter improves indoor air quality and keeps your system running efficiently. Check your filter monthly and change it as needed.

How do I find a good furnace repair company?

Choosing a furnace repair company requires careful consideration. Here are some qualities to consider:
  • Licensed and Insured: Ensure the company has the necessary licenses and insurance to operate in your area.
  • Experienced: Look for a company with a proven track record in furnace repair. Ask how long they've been in business and if they specialize in your furnace type..
  • Reputable: See what other customers say. Look for companies with positive reviews from previous clients.
  • Transparent Pricing: Choose a company that offers clear, upfront pricing and provides written estimates.
  • Available 24/7 (for emergencies): If you experience a furnace breakdown outside of regular business hours, make sure the company offers 24/7 emergency repair service.
Find and compare trusted local professionals with our convenient directory.

What are the signs that my furnace needs to be replaced?

If your furnace is exhibiting any of the following signs, it may be time for a replacement:
  • Age: If your furnace is 15-20 years or older, it is likely less efficient and more expensive to operate.
  • Frequent Repairs: If your furnace requires frequent and costly repairs, it may be more economical to replace it than to continue fixing it.
  • Increasing Energy Bills: A significant increase in your heating bills might suggest that your furnace is losing efficiency.
  • Inconsistent Heating: Uneven temperatures throughout your home or business could mean your furnace is no longer distributing heat evenly.
  • Strange Noises: Unusual sounds coming from your furnace, such as banging, squealing, or rumbling, can signal mechanical problems.
  • Yellow Flame: A healthy furnace flame should be blue. A yellow flame suggests the presence of carbon monoxide, which is a serious safety hazard. If you see a yellow flame, contact a qualified HVAC technician right away.
  • Dry Air: While not a direct indicator of malfunction, older furnaces can make your indoor air very dry.
If you notice one or more of these warning signs, have a qualified HVAC technician inspect your furnace.

How do I maintain my furnace?

Preventative maintenance is key to keeping your furnace running optimally and extending its lifespan. Here are some essential steps for furnace maintenance:
  • Change or Clean Air Filters: Dirty filters restrict airflow and make the system work harder. If you have pets or allergies, changing the filter every month is recommended.
  • Annual Inspection and Tune-Up: Before the heating season begins, it's recommended to have a qualified technician perform an annual inspection and tune-up. A professional technician can also test for carbon monoxide leaks and other safety hazards.
  • Clean the Area Around the Furnace: Keep the area around your furnace clean and free of debris. Maintain a clear space around the furnace for optimal operation.
  • Check the Thermostat: Make sure your thermostat is working correctly and set to the desired temperature.
  • Inspect Ductwork: Inspect your ductwork for any leaks or damage and have them repaired to prevent energy loss and maintain efficient airflow.
By following these maintenance tips, you can keep your furnace in good working condition, improve indoor air quality, and avoid unexpected breakdowns. .

What is a furnace tune-up?

A furnace tune-up is an annual checkup performed by a qualified HVAC technician that assesses the furnace's condition, cleans vital parts, and makes any necessary adjustments. A typical tune-up involves several checks and maintenance tasks, which often include:
  • Inspecting and cleaning the burners
  • Checking the heat exchanger for cracks or leaks
  • Inspecting the blower motor and fan
  • Checking the flue pipe for proper venting
  • Testing the safety controls
  • Lubricating moving parts
  • Checking refrigerant levels (for heat pumps)
  • Testing for carbon monoxide leaks
A thorough tune-up can identify minor issues early on, reducing the risk of failure and prolonging the life of your furnace.

How do I reset my furnace?

Before calling for repairs, consider resetting your furnace. Here's how to reset most furnaces:
  1. Turn off the furnace: Set the thermostat to the 'off' position.
  2. Turn off the power: Locate the circuit breaker for your furnace and switch it off.
  3. Wait: Wait a few minutes for the system to reset.
  4. Turn the power back on: Flip the circuit breaker back to the 'on' position.
  5. Turn on the furnace: Turn the thermostat back on and set it to your desired temperature.
If the problem continues or if you encounter error codes, don't attempt to diagnose or repair the issue yourself.

How can I tell if my furnace is the correct size for my home?

A correctly sized furnace is crucial for efficient and comfortable heating. An too-small furnace will constantly run and struggle to heat your home effectively, especially in cold weather.. An too-large furnace will short cycle, causing wear and tear, inconsistent heating, and inflated utility bills. Signs that your furnace may not be correctly sized include::
  • High Energy Bills: An incorrectly sized furnace can cause increased energy consumption.
  • Inconsistent Temperatures: Noticeable temperature fluctuations between rooms.
  • Short Cycling: If your furnace cycles frequently, it may not be heating your space efficiently and wasting energy.
  • Poor Air Quality: If the airflow from the vents seems weak or there are hot and cold spots, the unit may be the wrong size.
  • Excessive Noise: A furnace that's too large may produce more noise than normal.
If you suspect your furnace is improperly sized, it's essential to consult with an HVAC professional. A Manual J load calculation can accurately determine the appropriate furnace size.. Installing the correct size unit will maximize efficiency and minimize energy bills.

What is the average lifespan of a furnace?

The average lifespan of a furnace is typically 15 to 20 years. How long your particular furnace will last is influenced by:
  • Maintenance: Preventative maintenance significantly impacts the lifespan of your furnace. Annual checkups and timely repairs are essential.
  • Usage: The more frequently you use your furnace, the shorter its lifespan will be.
  • Quality: Well-built models are typically more durable.
  • Proper Installation: Correct installation is key to longevity.
An older furnace may require more repairs and cost more to operate.

What is the difference between a single-stage and two-stage furnace?

Single-stage and two-stage furnaces differ in their heating output capabilities:
Single-stage furnaces operate at only one output level – full capacity. This may cause uneven heating and fluctuating bills because the furnace is either running at its maximum setting or completely off..
Two-stage furnaces can run at both low and high speed. They work by running at a lower speed most of the time and switching to high speed when necessary.Two-stage furnaces provide enhanced home comfort and energy savings compared to single-stage models.

What are the different types of furnaces?

The most common types of furnaces are classified by their fuel source:
  • Natural Gas Furnaces: fueled by natural gas Natural gas furnaces tend to be efficient and have lower operating costs compared to oil or propane furnaces.
  • Propane Furnaces: Propane furnaces are similar to natural gas furnaces but run on propane, which is stored in a tank on your property..
  • Oil Furnaces: Oil furnaces burn heating oil as fuel, which is stored in a tank. Oil units may require additional considerations for fuel storage and delivery.
  • Electric Furnaces: Electric furnaces use electric resistance heating elements to generate heat.. They are typically less expensive to purchase than gas furnaces, but they can be more expensive to operate depending on your electricity rates.
An HVAC professional can help you determine the best type of furnace for your home or business.

What is an AFUE rating?

AFUE stands for Annual Fuel Utilization Efficiency. It is a measure of how effectively a furnace converts fuel to heat. . The AFUE rating is expressed as a percentage. For instance, a furnace with a 95% AFUE rating converts 95% of the fuel's energy into usable heat, while the remaining 5% is lost as exhaust gases.. Always choose a furnace with the highest AFUE rating you can afford. The minimum AFUE rating for new furnaces is 80%, but high-efficiency models can have AFUE ratings of 90% to 98% or more.

What is a heat exchanger in a furnace?

The heat exchanger plays a key role in a furnace. It is responsible for transferring heat from the combustion process to the air that circulates throughout your home. . The heat exchanger also acts as a barrier between the combustion gases and the circulating air, preventing harmful gases, such as carbon monoxide, from leaking into your living space.. Regularly checking and cleaning your heat exchanger and scheduling professional maintenance are crucial for ensuring its proper function, preventing cracks, and maximizing its lifespan.

What causes a furnace to stop working?

There are many potential causes of furnace failure, from minor issues to major breakdowns. Some of the most common causes include::
  • Lack of power: Check the circuit breaker to ensure the furnace is receiving power. A tripped breaker is a common and easily resolved problem.
  • Thermostat problems: A faulty thermostat may not be signaling the furnace to turn on. Try resetting the thermostat or replacing the batteries. If that doesn't solve the problem, the thermostat may need to be replaced.
  • Clogged air filter: A dirty air filter can cause many problems. Try replacing the filter.
  • Ignition problems: The igniter or pilot light (in older furnaces) is responsible for lighting the burners. In newer furnaces, electronic ignition systems control this process and should be checked if there are problems.
  • Blower motor issues: The blower motor is crucial to distributing warm air throughout your home. If the blower motor is broken, the furnace may not produce enough heat.
  • Gas supply problems (for gas furnaces): Gas furnaces require both gas and electricity to function properly. Check that there are no gas leaks.
  • Other component failures: Other components, such as the inducer motor, capacitor, or pressure switch, might be responsible.
It is typically best to avoid trying to fix the furnace on your own unless you're a qualified HVAC professional.

How often should I get my furnace inspected?

It's recommended to get your furnace inspected once a year, to prepare for colder months. An annual furnace inspection by a qualified HVAC technician can help to identify potential problems early, extend the lifespan of your furnace, and ensure it's running safely and efficiently. .

How can I improve the efficiency of my furnace?

Here are several ways to improve the efficiency of your furnace::
  • Change Air Filters Regularly: A clean air filter improves airflow, allowing your furnace to work more efficiently. Change filters monthly during peak heating and cooling seasons.
  • Schedule Annual Maintenance: An annual tune-up by an HVAC technician includes inspection, cleaning, and adjustments to improve efficiency.
  • Seal Air Leaks: Prevent drafts from making your furnace work harder. Proper sealing increases energy efficiency and makes your home more comfortable overall.
  • Upgrade Insulation: Make sure your home has adequate insulation in attics, walls, and floors to reduce heat loss.
  • Use a Programmable Thermostat: Lower the thermostat setting at night or when you're away to save energy..
  • Consider Zoning: Zoning divides your home into separate zones, each with its own thermostat, allowing you to heat or cool only the occupied areas, saving energy and improving comfort..

How do I know when it's time to replace my furnace?

Here are signs that your furnace is nearing the end of its lifespan and may need replacing::
  • Age: If your furnace is 15-20 years old or older, it's likely time to consider a replacement.
  • Frequent Repairs: Repeated service calls can mean underlying problems.
  • High Energy Bills: A spike in your heating bills might be caused by an inefficient furnace.
  • Uneven Temperatures: If you have cold spots, it could indicate problems with your furnace or air distribution.
  • Strange Noises: Banging, squealing, or rumbling noises suggest mechanical issues.
  • Yellow or Flickering Burner Flame: A healthy furnace flame should be blue. A yellow or flickering flame can indicate a problem with the burners, insufficient airflow, or a dangerous carbon monoxide leak. This should be addressed right away.
  • Dry or Dusty Air: An old furnace can contribute to dry, dusty indoor air. A new furnace with improved filtration can help alleviate this problem.
If you're experiencing any of these signs, it's advisable to consult with an HVAC professional for a furnace inspection and assessment.

What is a pilot light?

A pilot light is a small, continuous flame used in older furnaces. When the thermostat signals for heat, the pilot light ignites the main burners, heating the air. . While pilot lights are generally reliable, they're not as efficient as newer ignition systems Electronic ignition systems are usually safer and more efficient.

How do I relight my furnace's pilot light?

If your furnace has a pilot light and it won't stay lit, you can try relighting it by following the manufacturer's directions on the furnace. However, if you're not comfortable working with gas or if you're unsure about the process, it's recommended to contact a qualified HVAC technician. Never try to relight the pilot if you suspect a gas leak.

Why is my furnace making strange noises?

Strange noises from your furnace can indicate a variety of problems, it's important to pay attention to these sounds to identify potential issues early on:
  • Banging or popping: Could indicate a buildup of sediment in the heat exchanger.
  • Squealing or screeching: Often indicates an issue with the blower motor or the inducer motor.
  • Rumbling or vibrating: Might suggest a loose or damaged component or a problem with the burner.
  • Clicking: Could be from the igniter, but it can also come from other electrical problems If the clicking sound is persistent, it is best to contact an HVAC technician.
  • Whining: Similar to squealing or screeching, this indicates an issue with a motor.
Addressing the issue early can often save you from a larger expense later.

Why is my furnace blowing cold air?

Several problems can cause your furnace to blow cold air::
  • Pilot light or ignition problems: If the pilot light is out, the burners won't light, and the furnace won't produce heat. Ignition issues are a common culprit.
  • Thermostat issues: An incorrectly set or malfunctioning thermostat can prevent the furnace from turning on or make it blow cold air. Check that your thermostat is set correctly and is sending a signal to the furnace to turn on.
  • Overheating: If the furnace overheats, a safety switch may shut off the burners, causing the blower to circulate cold air.. This is typically caused by a restricted airflow, often due to a dirty air filter.
  • Ductwork problems: Leaks in your ductwork can allow heated air to escape into unconditioned spaces, reducing the amount of warm air that reaches your rooms.. This can also result in the furnace blowing cold air, especially if the leak is near the beginning of the ductwork run.
If you're not able to identify the cause and fix the problem yourself, contact a furnace repair professional.

How do I find a qualified furnace repair technician near me?

Finding a qualified and trustworthy furnace repair technician is essential for ensuring your heating system is properly diagnosed and repaired. HVACCompaniesHub.com simplifies the process by connecting you with licensed and experienced professionals in your area. Use our directory to search for furnace repair specialists in USA and compare their qualifications, reviews, and services. Get multiple quotes, schedule consultations, and choose the best technician to meet your needs and budget.

What are some tips for maintaining my furnace?

Regular furnace maintenance is key to preventing costly repairs and ensuring its efficient operation. Here are some tips:
  • Change the air filter regularly (every 1-3 months): A dirty filter restricts airflow, reducing efficiency and potentially damaging the system.
  • Schedule an annual furnace tune-up: A professional technician can inspect, clean, and test all components, ensuring optimal performance and safety.
  • Keep the area around the furnace clear: Remove any flammable materials or obstructions that could block airflow.
  • Check and clean the furnace vents: Make sure vents are not blocked by furniture or other items.
  • Install a programmable thermostat: This helps optimize heating schedules and save energy.
  • Seal air leaks around windows and doors: This prevents heat loss and improves efficiency.
Proactive maintenance can prevent unexpected breakdowns and reduce energy bills.