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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:
Jun 5, 2018
All interactions from sales to installation were Courteous and professional. The installation was seamless and the attention to detail including clean up was outstanding. I highly recommend TwinTech Heating and Cooling.
May 17, 2018
Twintech's Salesman Dave arrived promptly was friendly and courteous, listened and assured us the installation would be completed according to our requests. The crew arrived early morning on May 11th, 2018 and worked through till late afternoon non-stop. They were very friendly, very professional, their expertise was excellent, their workmanship outstanding and the installation was completed in a timely and efficient manner. We were completely satisfied and happy with the quality of the work.
May 9, 2018
I had cold and hot spots all over my 70 yr old home. My furnace is quite new and Greg optimized the fan and furnace. The original installer just took it out of the box with factory settings and installed it- basically running at 50% of capacity. Greg also routed heat into my laundry room, yeah - so now I can renovate laundry room - thanks Greg. He is honest, professional and knowledgeable. I will be calling him back in the spring to optimize my AC as well.
May 8, 2018
Wonderful from beginning to end. I tend to fret and worry about home improvements but the excellent team at TwinTech put my mind as ease. They listen, they are patient and best of all ... the work they did is amazing! I chose the Goodman 80K BTU 2 stage furnace and the matching Goodman air conditioner. Greg, Grant and Poitr "Peter" arrived on time, took great care, explained everything to me and they answered all of my questions. They carefully adjusted the factory settings to optimize the furnace for my house and they also checked the duct work in the basement. Dave, the Sales Manager, came by to say "hello" and to see if I was happy. YES, I am happy with the work! The furnace is very quiet. I have it running on low just to circulate the air in the house and it's so much quieter than my old furnace. When I need new duct work for an upcoming basement renovation TwinTech will be my first choice. I highly recommend TwinTech. PS. They were even nice to my dogs.
Apr 21, 2018
Greg was prompt on the scheduled day of installation and the work was done well within the time estimated beforehand. Installation was neat and the equipment and scope of work was as specified in the quote. One item I must point out is that we were faced with a "No Heat" situation the day before the scheduled installation and Greg came out to address it free of charge. Not only that, but he also corrected an installation fault with our smart thermostat that was not part of the original job, again free of charge.
Mar 16, 2018
Greg came by to do a routine furnace checkup. He was very knowledgeable and professional, letting me know what's being checked/adjusted and giving me tips to ensure everything runs smooth. Very honest and upfront about what's working fine vs. what may need to be fixed/replaced. He didn't attempt to up sell anything that wasn't necessary. I'm glad to have finally found someone I can trust and rely on for all my HVAC needs - furnace, A/C, and hot water tank.
Mar 4, 2018
I'm very happy with the work that was done. Everyone from salesperson to the installers were friendly and professional. They were on time and cleaned up the job site after it was installed. They also answered all my follow up questions promptly. I wouldn't hesitate to work with them or recommend them again.
Feb 28, 2018
Thanks to the team at Twin Tech for a great job installing my new heat pump/ac unit. The guys were very polite and professional. When they left you would never have known they had been there except for the new Mitsubishi unit on the wall!! would highly recommend the Twin Tech team.
Feb 28, 2018
Installed professionally, no delays, no rework needed. Very reliable contractor and sales person. Also installed BBQ gas line and some duct work.
Feb 19, 2018
Greg and Grant are friendly, reliable, and knowledgeable HVAC professionals. The twins, Dave and the entire team provided efficient top quality service. Our family plns to use Twintech for all of our future HVAC needs.
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