Categories
- AC Filters
- AC Repair
- Air Conditioner Maintenance
- Air Conditioner Repair
- Air Conditioners
- Air Conditioning Services
- Air Quality
- Cleaning Tips
- Cooling
- Duct System
- Ducted Air Conditioner
- Ductless Air Conditioner
- Emergency Repairs
- Energy Costs
- Expert Help
- Fans
- FAQ
- Filters
- Fireplaces
- Fun
- Furnace Installations
- Furnace Repairs
- Furnaces
- Gas Fireplaces
- Gas Line
- Gas Line Installations
- Heat Pumps
- Heating
- Heating and Cooling
- Heating Contractors
- heating system
- Heating Technicians
- Humidity
- HVAC
- HVAC Contractors
- HVAC experts
- HVAC Noises
- HVAC professionals
- HVAC Repairs
- HVAC Service
- Insulation
- Maintenance
- Natural Gas
- Pestibulum molestieenean
- Saving Money
- Water
- Water Heaters
- Work
[BACK]
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.
[BACK]
See What Our Customers Are Saying:
Apr 12, 2019
On one of the coldest days of winter, our furnace stopped working. Our regular furnace company came and told us we had a CO2 leak and shut us off. Their quote for a new furnace was way too high and they couldn't even install it on the same day. TwinTech was recommended to us by a friend. We called and spoke to Dave who was very nice and knowledgeable. Grant showed up a short time later and a new furnace was installed the same day with no troubles at all. Best of all, we received a higher-end furnace than what was offered by our previous company and at a cheaper price. I would recommend TwinTech with no hesitation at all.
Apr 11, 2019
I installed a new furnace and Air conditioner with them. The installation is of high quality and according to standards. The guys are professional and reasonably priced.. I highly recommend them.
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.
Related Links:
oshawa gas furnace problems, ajax furnace inspection, whitby furnace replacement, furnace repairs pickering, oshawa hvac furnaces, pickering gas furnace problems, whitby furnaces, residential furnace, pickering hvac furnace, pickering furnace service, pickering furnaces, oshawa furnace inspection, oshawa furnaces, gas furnace problems, furnace services oshawa, furnace maintenance near me, furnace repair ajax, furnace repair pickering, furnace repair oshawa, furnace replacement, furnace repairs, furnace repair, furnace installations ajax, furnace installations pickering, furnace installations oshawa, furnace inspection,