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How Can Furnace Leaks Happen?
Posted On: February 2, 2025
Furnace leaks can occur due to several reasons, often stemming from issues with condensation, internal components, or improper ventilation. Here are the most common causes:
1. Condensation Issues
- High-efficiency furnaces (with AFUE ratings of 90% or more) produce condensation as part of their heating process.
- If the condensation drain line or pump is clogged or broken, water can back up and leak.
2. Clogged or Broken Drain Line
- Standard and high-efficiency furnaces use drain lines to remove moisture.
- Blockages in these lines cause water to accumulate and eventually leak.
3. Humidifier Leaks
- If your furnace has a built-in humidifier, leaks can occur if the water line or humidifier pad becomes clogged or damaged.
4. Heat Exchanger Problems
- A cracked heat exchanger can lead to water buildup and leaks.
- This issue is serious as it can also result in carbon monoxide leaks.
5. Improper Venting
- If the vent pipes aren’t properly installed, condensation can form inside them and leak out.
6. Internal Component Issues
- Malfunctioning secondary heat exchangers or damaged seals can allow water to escape.
How to Prevent Furnace Leaks
- Schedule regular maintenance to catch issues early.
- Keep drain lines clear of debris.
- Inspect and replace the humidifier filter if necessary.
- Ensure proper venting and installation to prevent condensation buildup.
If your furnace is leaking, it’s best to turn it off and contact an HVAC professional to diagnose and fix the issue before it leads to further damage.
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See What Our Customers Are Saying:
Feb 18, 2025
Very pleased with the professional service that TwinTech Heating and Cooling provided in replacing my furnace. I got several quotes from different service providers. Their price was excellent and they explained the features very well. We are very glad we went with TwinTech and highly recommend their services.
Feb 18, 2025
We were new homeowners in need of a second opinion. TwinTech Heating & Cooling were Amazing and professional. Very knowledgeable and great service all around. Recommend to anyone looking for honest and reliable services. Treated with respect and care. Thank you Greg, Mitch and Bob!
Feb 18, 2025
TwinTech is an excellent and honest company! I called them for a second opinion after being told by another company that I needed to replace my furnace. Turns out this was not the case at all! I did not need a new furnace. TwinTech did not push to make an unnecessary sale and saved me from a huge expense. Bob and Mitch were extremely professional and above all honest! I definitely recommend TwinTech!
Feb 18, 2025
Amazing experience with TwinTech Heating & Cooling! Their team was professional, knowledgeable, and efficient from start to finish. They installed my new furnace quickly and left everything spotless. The technicians took the time to explain everything and made sure I was comfortable with the system before they left. Great customer service and fair pricing. I highly recommend them for anyone needing HVAC services!
Feb 18, 2025
Great experience all around. Bob was sharp and easy to talk to, and Greg handled the installation perfectly. Would hire them again in a heartbeat.
Aug 17, 2024
I returned from vacation to find my AC unit on the Fritz. After calling way too many places I connected with TwinTech. IÂ’ve used the company in the past for my furnace so I was happy when I recognized Greg at my front door. HeÂ’s great and the service is always top notch. IÂ’d highly recommend using twintech for honest, superior service in the Durham region. Thanks!
Aug 13, 2024
I called Twin Tech when my air conditioning stopped working. Greg came over to diagnose the issue - the same day. He was able to diagnose the issue and resolve it quite quickly. Although it was a quick fix, Greg was very thorough in explaining the issue and provided great advice. Not to mention, I felt very comfortable having Greg in my home - which I consider very important when hiring a service provider. Twin Tech will be my go-to from now on. Thank you!!
Aug 12, 2024
Just hired TwinTech Heating & Cooling to do an A/C Unit removal & reinstall to allow for landscaping access on the side of my house, and they were wonderful!
Bob, Greg & Mitch make a great team! Quick appointment times, super knowledgeable, expert troubleshooting capabilities & very customer service oriented.
I would highly recommend them for all of your HVAC needs! Great job guys!!
Jul 23, 2024
Twintech Heating & Cooling installed my furnace in 2022 and in fall of 2023 installed my Panasonic Heat Pump. Greg and Mitch did a great job. Helped me through the rebate process. Super happy with the Heat Pump. Only used my furnace 5 times this winter. Energy bills lower, carbon emissions lower.Thank you Twintech. I recommend highly!
Jul 18, 2024
Just had a new furnace installed by Twintech. I canÂ’t express how great these guys are at what they do. From the sales to installation they were professional all the way. Very reasonable pricing and courteous during the installation and willing to answer any questions I had. Highly recommended !!!
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