Furnace Repair Harpenden

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  • K T H Services
    4.5
    35 Eastcote Drive, Harpenden, AL5 1SE, GB

    KTH Services Ltd is a trusted local heating engineer serving Harpenden and the surrounding areas of Hertfordshire. Established in 1985, we pride ourselves on providing cost-effective and reliable services for all your central heating, gas, and plumbing needs. Our team of experienced engineers is dedicated to delivering the highest quality workmanship and customer service. We offer a comprehensive range of services, including boiler installations, servicing and repairs, Megaflo systems, care plans, landlord safety certificates, and more. We are Worcester Bosch accredited, ensuring you receive expert installation and maintenance for your Worcester Bosch boiler. As a testament to our commitment to quality, we offer up to a 12-year warranty on new Worcester Bosch boilers when you have our system filter fitted at the same time. For peace of mind, we also offer comprehensive care plans to protect your heating system from unexpected breakdowns. Contact us today for a free, no-obligation quotation and experience the KTH Services difference.

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  • Spire Harpenden Hospital
    3.7
    Cambridge Lea Hospital, Cambridge, CB2 1NA, GB

    Spire Healthcare is a leading private healthcare provider in the UK, with a network of 39 hospitals and clinics across the country. Our hospitals and clinics offer a wide range of treatments and services, including orthopaedic, cardiology, neurology, and more. We are committed to providing high-quality, patient-centered care, and our experienced medical teams work closely with patients to ensure they receive the best possible treatment and care.

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Frequently Asked Questions about Furnace Repair

Is your furnace acting up? Get answers to common questions about furnace repair so you can make informed decisions.

What is a heat exchanger in a furnace?

The heat exchanger is a vital component 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.. Cracks in the heat exchanger can be very dangerous, causing carbon monoxide to enter your house. Annual maintenance by a professional is highly recommended.

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.. 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.

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, replace filters more frequently.
  • 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 maximize efficiency and minimize the risk of breakdowns.
  • 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 optimize heating.
Regular maintenance is an investment that protects your system and enhances comfort.

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

A properly sized furnace is crucial for optimal home comfort. An undersized furnace won't adequately heat the space. An oversized furnace will cycle on and off too frequently, wasting energy and shortening the system's lifespan.. Signs that your furnace may not be correctly sized include::
  • High Energy Bills: An oversized furnace can cause increased energy consumption.
  • Inconsistent Temperatures: Noticeable temperature fluctuations between rooms.
  • Short Cycling: If your furnace turns on and off frequently, it could be an indication and wasting energy.
  • Poor Air Quality: If the airflow from the vents seems weak or there are areas with inconsistent temperatures, the unit may be the wrong size.
  • Excessive Noise: Oversized furnaces may produce more noise than normal.
If you suspect your furnace is improperly sized, it's essential to consult with an HVAC professional. 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 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. . It's a safety feature separating exhaust gases. 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 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.. 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.

How do I maintain my furnace?

Proper care to keeping your furnace running optimally 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, replace filters more frequently.
  • 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 maximize efficiency and minimize the risk of breakdowns.
  • Clean the Area Around the Furnace: Keep the area around your furnace clean and free of debris. This helps to prevent dust and dirt from entering the system and improves airflow.
  • Check the Thermostat: Make sure your thermostat is functioning properly and set to the desired temperature.
  • Inspect Ductwork: Inspect your ductwork for any leaks or damage and seal them promptly to optimize heating.
By following these maintenance tips, you can keep your furnace in good working condition, improve indoor air quality, and avoid unexpected breakdowns. .

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

A properly sized furnace is essential for optimal home comfort. An too-small furnace won't adequately heat the space. An too-large furnace will short cycle, causing wear and tear, inconsistent heating, and inflated utility bills. 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 throughout your home.
  • 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 areas with inconsistent temperatures, the unit may be the wrong size.
  • Excessive Noise: A furnace that's too large may produce more noise than normal.
A qualified technician will be able to assess your home's heating needs. A Manual J load calculation can accurately determine the appropriate furnace size.. Installing the correct size unit will maximize efficiency and minimize energy bills.