Why Your Furnace Blows Cold Air During Orillia’s Deep Freezes

December 16, 2025
Few things are more stressful during an Orillia winter than turning on the furnace… and feeling cold air coming through your vents. It happens more often than you’d think, especially during the sudden temperature drops Orillia is known for. Here are the most common causes we see: 1. The furnace overheated and shut down When airflow is restricted—usually due to a dirty filter—the furnace can overheat and trigger a safety shutdown. The fan keeps running but the heat stops. 2. Frozen vent pipes Orillia’s deep freezes often cause frost buildup in high-efficiency furnace vent pipes. When this happens, the furnace can’t ignite properly and may run without producing heat. 3. Ignition or flame sensor issues Cold temperatures make ignition components work harder. If your furnace tries to light but the flame sensor doesn’t detect heat, it will shut down for safety. 4. Low gas pressure during extreme cold During provincial cold snaps, natural gas pressure can drop slightly. Furnaces with borderline performance may fail to ignite consistently. What to Do If your furnace is blowing cold air, shut it off, check the filter, and make sure your exterior vent pipes aren’t buried in snow or ice. If everything looks normal, call Mr. Heat Furnace Orillia —we can usually diagnose the issue within minutes.

How to Prepare Your Orillia Home for a Harsh Winter (Expert HVAC Checklist)

December 11, 2025
Orillia winters can be unpredictable—one day mild, the next extremely cold. The best way to avoid emergency furnace calls is to prepare your HVAC system before the season hits its peak. Here’s a homeowner-friendly checklist used by the technicians at Mr. Heat Furnace Orillia : 1. Replace your furnace filter before the temperature drops A fresh filter improves airflow, reduces energy bills, and helps prevent overheating shutdowns. 2. Schedule a fall furnace tune-up Tune-ups catch early signs of ignition issues, blower problems, cracked hoses, and worn components—all of which commonly fail during heavy winter use. 3. Clear snow and ice from exterior vents High-efficiency furnace vent pipes can freeze easily. Keeping them clear ensures your system runs safely. 4. Test your thermostat settings Make sure your thermostat responds properly and is placed away from cold drafts. 5. Seal windows and doors Even the best furnace can’t compensate for major heat loss around windows and doorframes. Weatherstripping and caulking can drastically reduce heating costs. 6. Listen for unusual furnace sounds Banging, rattling, or grinding noises are early indicators of a mechanical failure. Why It Matters Preventative work saves Orillia homeowners hundreds of dollars in avoided breakdowns and keeps your home consistently warm through the coldest storms. If you want peace of mind this winter, Mr. Heat Furnace Orillia can perform a complete winter-readiness check to make sure your system is prepared for whatever the season brings. Contact us today for fast HVAC services !

The Most Common Furnace Repairs We See in Orillia Every Winter

December 8, 2025
Winter is our busiest season at Mr. Heat Furnace Orillia , and year after year, we see the same types of furnace failures once temperatures drop below freezing. If you’re a homeowner in Orillia, here are the issues most likely to affect you: 1. Faulty Flame Sensors Flame sensors get coated in carbon from heavy winter use, causing the furnace to shut down repeatedly. A quick cleaning usually solves the issue. 2. Blower Motor Problems When the blower motor wears out, homeowners hear grinding, humming, or squealing noises. In winter, motors work harder and failures become common. 3. Pressure Switch Failures This small but crucial part detects airflow inside your furnace. When it fails—or when vent pipes get blocked—the furnace won’t start. 4. Limit Switch Trips If your furnace overheats (often from a clogged filter), the limit switch triggers a safety shutdown. These repeated trips can eventually wear it out. 5. Thermostat Malfunctions Old thermostats often misread temperatures in cold weather, causing short cycling or heat loss. Why Winter Repairs Are More Urgent Cold temperatures make minor issues escalate quickly. A furnace working at 50% capacity in November can fail completely during January’s cold snaps. At Mr. Heat Furnace Orillia , we prioritize fast winter response, same-day repairs, and honest pricing—because no homeowner should be left without heat.
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Get Your Furnace In Best Condition Possible As We Prepare for Winter to Hit

Mr. Heat Furnace Repair Orillia • November 27, 2024

Mr. Heat Furnace Orillia is your local business for all things heating related!

As the cold winter months approach, it is so important to make sure that your furnace is in top working condition to keep your home warm and cozy. A well-maintained furnace not only provides comfort but also helps save on heating bills by operating efficiently.

In Orillia, Mr. Heat Furnace Repair Orillia is your go-to heating contractor for all your furnace repair and installation needs. Furnace repair Orillia services offered by Mr. Heat  are reliable and efficient, ensuring that your furnace is up and running in no time.


Whether your furnace is making strange noises, not heating properly, or experiencing any other issues, their team of experienced technicians can diagnose and fix the problem quickly and effectively.


With their expertise in heating and cooling systems, you can trust that your furnace will be in good hands. In addition to furnace repair Orillia, Mr. Heat Furnace Repair Orillia also specializes in new furnace installation Orillia. If your old furnace is beyond repair or you simply want to upgrade to a more energy-efficient model, their team can help you choose the right furnace for your home and install it with precision.


A new furnace can not only improve the comfort of your home but also save you money on heating costs in the long run. Regular furnace service Orillia is essential to prolong the lifespan of your heating system and prevent costly repairs down the line. Mr. Heat offers comprehensive heating maintenance Orillia plans to keep your furnace in optimal condition year-round.


By scheduling regular maintenance with their team, you can ensure that your furnace is running efficiently and avoid unexpected breakdowns during the coldest months of the year. Don't let a malfunctioning furnace leave you in the cold this winter. Trust Mr. Heat Furnace Repair Orillia for all your heating needs, including furnace repair Orillia, new furnace installation Orillia, and heating maintenance Orillia.


With their reliable services and experienced technicians, you can rest assured that your home will stay warm and comfortable throughout the winter season. Contact us today for all your heating and cooling Orillia needs.