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When to Replace Your Furnace
Posted On: February 3, 2025
Replacing your furnace is a significant investment, but knowing when it's time can save you money and prevent unexpected breakdowns. Here are key signs that indicate it's time to replace your furnace:
1. Age of the Furnace
Most furnaces last between 15 to 20 years. If yours is approaching or exceeding this range, consider replacing it before it fails.
2. Rising Energy Bills
Older furnaces lose efficiency, leading to increased energy costs. If your heating bills keep rising despite regular maintenance, a newer, energy-efficient model could save you money.
3. Frequent Repairs
If you’re calling for repairs more than once or twice a year, replacement may be a more cost-effective solution. The 50% rule applies—if repair costs exceed half the price of a new unit, replacement is the better option.
4. Uneven Heating
Cold spots or inconsistent temperatures in different rooms suggest your furnace is struggling to distribute heat properly.
5. Strange Noises
Banging, rattling, or squealing sounds could indicate worn-out parts. While some noises can be fixed, persistent issues may signal the need for a new furnace.
6. Excessive Dust or Dry Air
Older furnaces may struggle with humidity control, leading to dry air, static electricity, or excessive dust in your home.
7. Yellow Burner Flame
A healthy furnace should have a blue flame. A yellow or flickering flame could indicate carbon monoxide issues, requiring immediate attention.
8. Frequent Cycling
If your furnace turns on and off frequently, it could be overworking due to inefficiency or a malfunction.
Should You Repair or Replace?
- If your furnace is under 10 years old, repairs might be sufficient.
- If it’s 15+ years old with ongoing issues, replacement is often the smarter investment.
- Energy-efficient furnaces can significantly reduce heating costs and improve home comfort.
Need expert advice? Contact a professional HVAC technician to assess your furnace and recommend the best course of action!
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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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