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Is My Furnace Unit Dangerous?

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Is My Furnace Unit Dangerous?

Posted On: September 14, 2024

Is My Furnace Unit Dangerous?

A furnace unit can be dangerous if it's not properly maintained or if it's malfunctioning. Here are some key signs and potential dangers to be aware of:


1. Carbon Monoxide Leaks

  • Signs: Yellow or flickering burner flame instead of a steady blue one, soot around the furnace, or an increase in condensation on windows.
  • Danger: Carbon monoxide (CO) is a colorless, odorless gas that can be deadly if inhaled in large amounts. Symptoms of CO poisoning include headache, dizziness, nausea, and confusion.

2. Gas Leaks

  • Signs: A rotten egg smell, which indicates a natural gas leak.
  • Danger: Gas leaks can lead to fires or explosions if not addressed immediately. If you smell gas, evacuate the area and contact emergency services.

3. Cracked Heat Exchanger

  • Signs: Soot build-up, strange smells, or soot around the furnace area.
  • Danger: A cracked heat exchanger can lead to carbon monoxide leaks.

4. Electrical Issues

  • Signs: Frequent circuit breaker trips, burning smells, or unusual noises.
  • Danger: Electrical malfunctions can cause fires or shocks.

5. Inadequate Ventilation

  • Signs: Moisture build-up, stale air, or mold growth near the furnace.
  • Danger: Poor ventilation can lead to carbon monoxide build-up and other indoor air quality issues.

6. Improper Installation or Maintenance

  • Danger: A furnace that's not installed or maintained correctly can pose various risks, from gas leaks to inefficient operation, leading to higher energy bills and potential safety hazards.

Preventive Measures:

  • Regular Maintenance: Schedule annual inspections and maintenance by a professional to ensure safe and efficient operation.
  • Carbon Monoxide Detectors: Install CO detectors near your furnace and throughout your home.
  • Prompt Repairs: Address any issues immediately to prevent potential dangers.

Proper maintenance and awareness of the signs of a malfunctioning furnace can help mitigate these dangers and keep your home safe.



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See What Our Customers Are Saying:

by Floreene in Whitby on Twintech Heating and Cooling

My old furnace had finally broken down for the last time when contacted twintech to have a new furnace installed…They were prompt, knowledgeable and very reasonably priced. They did such a great job i tell all my friends and family about this company.

by Damien McIsaac. Ajax on Twintech Heating and Cooling

To whom it may concern, I recently had TwinTech (Greg and Grant Dainty) replace my furnace and service both my gas fireplaces and air conditioning unit. They were professional, courteous and very fair in their pricing. I would gladly recommend TwinTech to anyone needing work done. I can be contacted at 905-626-XXXX.

by Blair N. - Toronto on Twintech Heating and Cooling

My Fiancé and I have relied on Twintech Heating and Cooling now for the better part of the last 10 years. In that time, Greg has installed a furnace, an air conditioner, and a heat-pump at our residence in Toronto. In each instance Greg and his team were a pleasure to deal with. They were courteous and professional throughout the whole process and the quality of their work is first rate. Our experiences have always been extremely positive and we have referred his services numerous times to our friends and family. Without hesitation, I would recommend Greg and TwinTech Heating and Cooling to anyone looking to service or replace their existing heat/AC equipment

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See What Our Customers Are Saying:

by Robert Rogers on Twintech Heating and Cooling

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.

by Robert Mizuno on Twintech Heating and Cooling

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!

by Ruth on Twintech Heating and Cooling

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!

by Anna Chin on Twintech Heating and Cooling

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!

by Connor Agnew on Twintech Heating and Cooling

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.

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