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Why is My Furnace Heating Inconsistently?
Posted On: December 23, 2024
Inconsistent heating from your furnace can be frustrating, especially during colder months. Here are some common reasons your furnace might not be heating evenly or consistently:
1. Clogged or Dirty Air Filters
- Problem: A dirty filter restricts airflow, causing uneven heating throughout your home.
- Solution: Replace or clean the air filters regularly, typically every 1-3 months, depending on usage.
2. Thermostat Issues
- Problem: A malfunctioning thermostat might misread temperatures or fail to communicate with your furnace effectively.
- Solution: Check the thermostat’s settings and batteries. If issues persist, consider recalibrating or replacing the thermostat.
3. Blocked or Leaky Ductwork
- Problem: Air ducts that are blocked, leaking, or poorly insulated can prevent warm air from reaching certain areas of your home.
- Solution: Inspect ducts for obstructions or damage. Seal leaks and ensure proper insulation.
4. Incorrect Furnace Size
- Problem: A furnace that is too small for your home may struggle to heat all rooms evenly. Conversely, an oversized furnace may short-cycle, causing uneven temperatures.
- Solution: Have a professional HVAC technician assess your furnace size and capacity.
5. Aging Furnace
- Problem: Older furnaces may lose efficiency over time, resulting in inconsistent heating.
- Solution: Schedule a professional inspection to determine if repairs or replacement are necessary.
6. Faulty Blower Motor
- Problem: A malfunctioning blower motor may not distribute warm air effectively throughout your home.
- Solution: Have an HVAC professional inspect and repair or replace the blower motor if needed.
7. Dirty Burners
- Problem: Dirt or debris on the burners can lead to incomplete combustion and uneven heating.
- Solution: Regular maintenance and cleaning of the furnace burners can prevent this issue.
8. Drafts or Poor Insulation
- Problem: Cold drafts or poorly insulated areas can cause temperature fluctuations, even if the furnace is functioning correctly.
- Solution: Seal windows and doors, and improve insulation in areas where heat loss is occurring.
9. Zoning Issues
- Problem: Without proper zoning, some rooms may receive more heat than others, depending on the layout of your ductwork and vents.
- Solution: Consider adding a zoning system to better control the heat distribution in your home.
10. Pilot Light or Ignition Issues
- Problem: An intermittent pilot light or faulty ignition system can cause the furnace to cycle erratically.
- Solution: Have the ignition system inspected and repaired by a qualified technician.
When to Call a Professional
If you’ve tried troubleshooting and your furnace continues to heat inconsistently, it’s best to call a licensed HVAC technician. They can diagnose the problem accurately and recommend the best course of action to restore even heating in your home.
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See What Our Customers Are Saying:
Apr 10, 2019
Had new furnace installed and ran into some difficulties but the contractor responded in a timely and efficient manner - after further service calls were made, a reasonable resolution was found.
Apr 8, 2019
The work was done quickly efficiently neatly and professionally. Pleased with the service, information, product, and the company.
Apr 1, 2019
Great sales member named Dave came in told us some amazing items and how they would be priced installed an all. We couldnt believe it! The next day the ac was installed, that day one employee named Greg told us that our furnace was working way to hard and was causing us to use way too much gas. So two days later they came in an installed a new furnace!
Apr 1, 2019
Installation was done quickly and professionally. The new furnace is quiet and provides even heat.
Mar 3, 2019
They removed and discarded old furnace. Installed new furnace. Installed air intake pipe, that had never been installed by builder, no charge. Replaced loose hose on floor with hard pipe and rerouted it to drain, no charge. Almost 33% cheaper then quote from Enercare, which was the company we dealt with and had insurance with for 8 years. No yearly fee for cleaning/insurance, saves 300 a year. Courteous, professional, fast, and friendly. My wife and I have been recommending them to everyone we know and meet, and will continue to do so. Thanks for everything, Twintech!!!
Mar 4, 2019
This company was great to deal with. Our furnace went down and they installed a new furnace the next day with a lot of professionalism!
Feb 22, 2019
Finally! An honest company with highly knowledgeable and informative staff. Had a furnace service and found multiply errors in our system from an amateur installer. Very fair price to correct problems and will definitely use again.
Feb 16, 2019
Had to replace the heating & a/c unit in a condo apartment dwelling. this company recommended by the property manager and president of the condo building. found their workmanship and attention to details very good and very thorough. were able to resolve small problems and situations and happy to feel the heat in my unit. it's pricey, but happy was done by a very professional service. thank you.
Feb 13, 2019
Fantastic team. Completed the job as per the specifications and in under 3 hours. Highly recommended Twintech.
Jan 30, 2019
During the summer, I previously hired TwinTech to replace my air conditioner when it failed. They did an excellent job so when I decided to proactively replace the furnace I contacted them. The furnace I had was 22 years old and showed signs of internal leakage. It still worked but rather than wait to have it fail in cold weather, I decided to purchase a higher efficiency model before it failed and take advantage of energy efficiency rebates. TwinTech offered very useful advice on the make and model of furnace to choose including high efficiency and variable speed motor. The price was reasonable, TwinTech arrived at the allotted time, installed the new furnace (including some re-routing of exhaust lines since the existing ones were too close to other vents), removed the old furnace, tested the installation and cleaned everything up. Overall, it was a good experience, they did a great job and the new furnace is working well.
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