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How Do I Know My Furnace is Safe?
Posted On: February 14, 2025
Ensuring your furnace is safe is crucial for both your comfort and well-being. Here are some key indicators that your furnace is operating safely and efficiently:
1. Regular Maintenance and Inspections
- Schedule annual professional inspections to check for potential issues.
- A technician can clean components, test for leaks, and ensure the system runs efficiently.
2. Check for Carbon Monoxide Leaks
- Install carbon monoxide (CO) detectors near sleeping areas and around your furnace.
- Yellow or flickering burner flames instead of blue flames could indicate incomplete combustion, which may lead to CO production.
- Symptoms like headaches, dizziness, or nausea when the furnace is running may indicate CO exposure—turn it off immediately and seek help.
3. Ensure Proper Ventilation
- Check that your furnace’s vents and air intake pipes are clear of debris like snow, leaves, or nests.
- Blocked vents can cause dangerous gases to build up in your home.
4. Listen for Unusual Noises
- Loud banging, whistling, or rattling sounds could indicate issues like gas buildup, a loose part, or airflow restrictions.
- A constant humming or high-pitched screeching could suggest blower motor or belt problems.
5. Monitor for Gas Leaks
- If you smell rotten eggs (natural gas odor), turn off the furnace, leave the home, and call the gas company immediately.
- A professional should inspect and repair any gas leaks before using the furnace again.
6. Keep the Area Around the Furnace Clear
- Do not store flammable materials like paper, chemicals, or furniture near the furnace.
- Ensure at least a 3-foot clearance around the furnace to allow for proper airflow and safety.
7. Change the Air Filter Regularly
- A clogged filter restricts airflow, causing the furnace to overheat and work harder, increasing the risk of failure.
- Change filters every 1-3 months, depending on usage and the type of filter.
8. Monitor Energy Bills
- A sudden spike in energy costs may indicate the furnace is running inefficiently due to leaks, clogged filters, or failing components.
9. Test the Thermostat
- Ensure the thermostat is responding correctly to temperature changes.
- A malfunctioning thermostat could cause overheating or inefficient operation.
10. Check the Heat Exchanger
- A cracked heat exchanger can leak carbon monoxide into your home.
- If you notice soot buildup or a strong burning smell, have a technician inspect the system.
When to Call a Professional
- If you notice any gas leaks, CO detector alarms, or unusual furnace behavior, turn off the system and call a professional HVAC technician immediately.
Regular maintenance and vigilance will help ensure your furnace remains safe and efficient.
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See What Our Customers Are Saying:
Jul 28, 2022
On coldest night of the year our furnace quit. At 8:40 in the morning Greg arrived and gave us a diagnosis and a recommendation. By 2:30 we had a new furnace and were warm again. Great company. Great customer service. Good reasonable price.
Peter, Pickering
Jul 3, 2022
Twin tech team was very efficient and prompt. They provided a quote within hours of request and got the job done on time. No disruption to home function. We would highly recommend this team. Job well done.
Jul 3, 2022
Our furnace bit the dust, and Twintech came out to troubleshoot and diagnose the problem within a couple of hours. Mitch was super helpful, patient, and answered all of our questions. When we decided to get the furnace replaced, the crew was over first thing the next morning and did a fantastic job. Not only did they complete the job in a few hours, but they cleaned up and respected our house as they went, and answered all of our follow-up questions. I've used Twintech for our HVAC needs in the past and will continue to do so. I'd recommend them to anyone, and it feels good to support a local, family-owned business.
Jul 3, 2022
Dave and the Twintech team were fabulous from day 1 and helped us through the process to identifying a new furnace and AC unit. This was our first time through this process and Dave did a thorough job explaining all the components and was very patience answering all our questions. Dave provided great insights and fair pricing.
The Twintech team did an awesome installation. Very clean and efficient. I would highly recommended their service.
Jul 3, 2022
We had a new Amana furnace installed by Twintech and we were very pleased with the installation. It is nice to have a warm house again.
Jul 3, 2022
Excellent job. Excellent service. Competitive price. Its rare to find a company with the knowledge and professional results we have experienced with Twintech. The clean and neat installation with attention to detail and drop sheers to respect our property is a clear indication of Twintechs high level of integrity. The 1-1/2 gas line upgrade they did for our pool 3 years ago was awesome. Can't say enough. Thank-you Twintech.
Jul 3, 2022
Twitch did a great job with the installation of our new furnace. I really appreciated their honesty and I could trust what they were telling me. Another company tried to suggest significantly more work at a greater cost claiming it was necessary to meet current building code. Twintech is very fair. All staff I meet were friendly, polite and trustworthy. I would recommend Twitch for a furnace.
Jul 3, 2022
This is a professional team that's easy to deal with. I would strongly recommend them
Jul 3, 2022
Very professional firm from start to finish!
They removed the old oil tank and furnace. They installed air conditioning and a new propane furnace.
Professional installation, on time and no mess.
Very pleased with their work and would highly recommend the company. Our house is three stories so they spent the time to do all the calculations to make sure we would have great performance on each floor.
Thank you again!
Jul 3, 2022
Upon a routine yearly maintenance, it was discovered there was a leak in the heat exchanger and a I needed a new furnace. I know nothing about these things and was completely stressed out. The company I had the maintenance plan with quoted me a huge number to rent a furnace, I just wanted to cry. Then I spoke to Dave at Twintech. He was so knowledgeable and calming, provided me a fair quote and within a few days I had an amazing crew show up to my house and install my new energy efficient furnace! I have already recommended these wonderful people at Twintech to a good friend of mine. Thank you Twintech!!
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