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What Does a Leaky Furnace Mean?
Posted On: January 26, 2025
A leaky furnace can indicate several issues, depending on the source and type of the leak. Here’s a breakdown of what it could mean:
1. Condensation Leaks
- Reason: High-efficiency furnaces produce condensation as a byproduct of their operation. If the condensation drainage system is clogged or damaged, water can leak from the furnace.
- Signs: Water pooling around the base of the furnace.
- Solution: Inspect and clear the drainage system or repair the condensate pump.
2. Humidifier Leaks
- Reason: Some furnaces are connected to a whole-house humidifier. If the humidifier malfunctions or its water line becomes clogged, it may leak.
- Signs: Water near the humidifier attachment.
- Solution: Check the humidifier and repair or replace faulty components.
3. Ventilation Problems
- Reason: Blocked or improperly installed vents can cause condensation to accumulate and leak around the furnace.
- Signs: Water around the furnace or near exhaust vents.
- Solution: Ensure vents are clear and correctly installed.
4. Cracked Heat Exchanger
- Reason: A cracked heat exchanger can cause water vapor to leak, especially in older furnaces. This is a serious issue as it may also lead to carbon monoxide leaks.
- Signs: Visible cracks, water vapor leaks, or unusual furnace noises.
- Solution: Shut off the furnace and contact a professional immediately.
5. Air Conditioner Coil Leaks
- Reason: If your HVAC system shares a furnace and air conditioner, a clogged or damaged AC condensate drain pan can cause water to leak near the furnace.
- Signs: Water around the furnace when the AC is running.
- Solution: Inspect and repair the AC drainage system.
6. Frozen Pipes
- Reason: In colder climates, pipes near or connected to the furnace may freeze and burst, leading to leaks.
- Signs: Leaks coinciding with extremely cold temperatures.
- Solution: Insulate pipes and repair any breaks.
What to Do If Your Furnace Is Leaking
- Turn Off the Furnace: Shut off the power to prevent electrical hazards.
- Clean Up the Water: Remove pooled water to avoid damage to surrounding areas.
- Inspect the Source: Check for visible issues with condensate lines, humidifiers, or vents.
- Call a Professional: If the issue isn’t obvious or easily fixed, contact an HVAC technician to diagnose and repair the problem.
A leaky furnace may seem minor but can indicate serious underlying issues. Addressing it promptly ensures your system runs efficiently and safely.
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See What Our Customers Are Saying:
Jul 2, 2017
Very impressed they arrive to quote even though I had forgotten to call them back to confirm date & time. They showed the day before installation to deliver the unit. Returned the next day as promised at 9am. Project was completed in a professional manner. They even fixed a few things that they noticed were not installed correctly, or to code by previous heating & air contractors we had at our residence before. Would recommend this company to everyone!
Jun 29, 2017
Greg removed old oil furnace and oil tank from basement relocated new Napoleon propane furnace to allow duct work to be rerouted to a much more suitable location. Moved air conditioner to the new furnace. Dave recommended two available grants to assist with cost. They kept to their original quoted price which was substantially lower than a competitors for the same furnace and work. They completed the work as stated when stated and left the area clean and tidy. We are very pleased with the outcome.
Jun 28, 2017
Twintech installed a Goodman furnace and ac init. Very professional install, both units are working well.
Jun 28, 2017
We had Grant and Greg Dainty quote to replace our 20 yr old furnace. I have known them for years and have had other jobs done by them ( AC and Pool Htr). The price was very reasonable and the job was completed in one day.
Jun 23, 2017
TwinTech was the right choice. Our consultation with Dave set the tone. Professional and knowledgeable, we even received a follow-up call within hours of our install completion, wow! TwinTech arrived as scheduled to install our A/C unit. Within minutes of arrival Greg noted and explained a few out of code faults on our furnace installed by another company, problems fixed, thanks TwinTech. Greg, Grant and "Subaru" Pete were meticulous start to finish. Highly recommended!
Jun 13, 2017
Twintech replaced our aging +20 yrs old Furnace & AC with the variable high efficiency Napoleon Furnace matched with the Goodman AC. Sales guy ,Dave was great, gave a no pressure estimate, explained about the Government Rebate program which they took care of completely including arranging the home energy audit. On the scheduled day Greg and his team arrived on time, did a great job and completed the same day , extremely professional and courteous, cleaned up everything , tested the system, Greg took his time to explain the setup. Very impressed with the Napoleon Furnace 9600 which did a great job in maintaining a comfortable temperature last winter and now with the hot weather the Goodman AC cooled the house in much less time than the old AC unit could ever. From start to finish Twintech were great and have no hesitation in recommending them 100%.
Jun 13, 2017
The Twintech team did an excellent job installing our new Goodman air conditioner. They were polite and professional. Greg was knowledgeable and clearly experienced. Thank you Twintech for bringing our cooling system up to current regulations. Job well done!
Jun 11, 2017
Dave from TwinTech was very knowledgeable, professional and thorough in the buying process. He helped us to identify the best furnace for our home and our budget. When we needed a new filter a year later and seemed to have a problem finding the right one, I called Dave up and he delivered a filter to me the next day! The cost was on par with other retailers, but it was this unexpected personal service that really was impressive. The furnace? Works like a charm.
May 27, 2017
Imagine, it's 5 minutes after the midnight countdown New Year's eve and the furnace quits. We called TwinTech fully expecting to leave a message and actually spoke with Greg, one of the owners! We had an immediate repair early the next morning & a new furnace within the week. We have entrusted TwinTech with all our home HVAC service needs for over 6 years. That's why this week with an opportunity to purchase a new BBQ, we called them 1st to see about a gas line install. It's chicken on the grill tonight! They are efficient, reliable, honest, hard working, and -- attentive is an understatement.
Jan 19, 2016
Wonderful customer service, starting from the job quote (Dave), to the clean install, to the follow-up. Twintech is a small company which installed my Napoleon furnace, A/C, John Wood tank, and ran the line for my gas dryer. The installation was completed as promised in one day. The work area was kept very clean, and they even took care of my old rental tank. The professionalism and wonderful customer service is second to none. They completed all of my rebate paperwork, and now I'm getting $2000 back! You will not be disappointed if you hire this company for your project.
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