Furnace Repair Luton

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Frequently Asked Questions about Furnace Repair

Is your furnace acting up? Get answers to common questions about furnace repair and find trusted local technicians.

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 offer cleaner energy, especially compared to oil.
  • 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.
Other less common types of furnaces include modulating furnaces (which offer variable heating output for better efficiency) and dual-fuel or hybrid systems (which combine a heat pump with a furnace for enhanced performance in all climates).

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

Indicators that your furnace may need replacement include:
  • Age: If your furnace is 15-20 years or older, it is likely nearing the end of its lifespan and more prone to breakdowns.
  • 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 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 immediately.
  • Dry Air: If you notice excessive dryness, a new furnace could provide increased comfort.
It's important to address issues as soon as possible.

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 you have cold spots, it could indicate problems with your furnace or air distribution.
  • Strange Noises: Unusual or loud sounds suggest mechanical issues.
  • Yellow or Flickering Burner Flame: A healthy furnace flame should be blue. A yellow or flickering flame can indicate a variety of issues. 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 an AFUE rating?

AFUE stands for Annual Fuel Utilization Efficiency. It is a measure of how effectively a furnace converts fuel to heat. . 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, and only 5% is wasted. 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 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 These are a good option in areas where natural gas isn't accessible.
  • Oil Furnaces: Oil furnaces are less common than gas or propane furnaces but still used in certain regions. They require more maintenance and tend to be less efficient than gas furnaces.
  • 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 are the signs that my furnace needs to be replaced?

Indicators that your furnace may need replacement include:
  • 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 a better financial decision 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 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 can indicate a problem with the burners or venting. A yellow flame requires immediate attention.
  • Dry Air: If you notice excessive dryness, a new furnace could provide increased comfort.
It's important to address issues as soon as possible.

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 less efficient and more prone to breakdowns.
  • 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 you have cold spots, it could indicate problems with your furnace or ductwork.
  • Strange Noises: Banging, squealing, or rumbling noises 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 may cause dry, dusty indoor air. Upgrading your system can improve comfort and IAQ.
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 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, and only 5% is wasted. Always choose a furnace with the highest AFUE rating you can afford. Look for high-efficiency systems for maximum savings.