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Your Pre-Winter Heat Pump Checklist
Posted On: November 22, 2025
As temperatures begin to fall in the Durham Region and Toronto, now is the perfect time to make sure your heat pump is ready for the demands of winter.
A little preparation before the cold arrives can improve efficiency, prevent surprises, and keep your home consistently comfortable all season long.
Here’s a practical, easy-to-follow pre-winter heat pump checklist to help you get the most from your system.
1.
Inspect and Clean the Outdoor Unit
Before snow and ice become a daily challenge, check the outdoor heat pump unit.
Make sure it’s clear from anything that could block airflow.
Look for and remove:
Leaves and twigs
Overgrown plants
Dirt or debris around the base
A clear, open area helps the unit operate efficiently throughout winter.
2.
Replace or Clean Air Filters
Your heat pump’s air filter plays a major role in both performance and indoor air quality.
Dirty filters restrict airflow and force the system to work harder.
Check the filter now, and plan to replace or clean it every 4–6 weeks during winter.
3.
Ensure Vents and Indoor Units Are Unblocked
Whether you have a ducted heat pump or ductless mini-splits, make sure nothing is blocking airflow indoors.
Furniture, curtains, or decor placed too close to vents or wall units can reduce efficiency and create uneven heating.
Even a few inches of clearance can make a noticeable difference.
4.
Double-Check Thermostat Settings
Before winter starts, ensure your thermostat is set up properly for cold weather.
Use HEAT mode, and avoid the “AUTO” temperature mode if possible, as it can sometimes cause the system to switch unexpectedly.
If you have a programmable thermostat, adjusting schedules now can save you money later.
5.
Check Drainage and Condensate Lines
During operation, heat pumps create condensation.
Make sure the condensate line is clear and draining properly.
A quick inspection now helps prevent leaks or moisture issues once the system is running more frequently.
6.
Test the System Before Freezing Temperatures Hit
Turn on your heat pump before the first true cold spell.
This gives you time to notice anything unusual, such as strange noises, weak airflow, or temperature irregularities.
If anything feels off, it’s better to fix it now than during a January cold snap.
7.
Clean the Indoor Coil (or Have It Professionally Cleaned)
Dust buildup on the indoor coil can affect performance and air quality.
Some light dust can be wiped from accessible areas, but deeper cleaning should be handled by a technician to avoid damaging delicate components.
A clean coil improves efficiency and helps the system heat more evenly.
8.
Inspect the Outdoor Unit for Leveling and Stability
Heat pumps work best when the outdoor unit sits level on its pad.
Over time, soil can shift, causing the unit to tilt.
A slight adjustment now can protect the compressor and improve performance during winter’s demanding conditions.
9.
Schedule Professional Maintenance
Even with great at-home care, nothing replaces a professional tune-up.
A technician will inspect electrical components, test operation, clean internal parts, and ensure everything is winter-ready.
At Twintech Heating & Cooling, we prepare heat pumps across Durham Region and Toronto so homeowners stay comfortable regardless of how cold it gets.
Stay Comfortable, Efficient, and Winter-Ready
A few quick checks now can help prevent mid-winter breakdowns and keep your heat pump running efficiently all season.
If you’d like help preparing your system or want a full winter tune-up, Twintech Heating & Cooling is here to keep your home warm and worry-free.
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See What Our Customers Are Saying:
Jun 5, 2018
All interactions from sales to installation were Courteous and professional. The installation was seamless and the attention to detail including clean up was outstanding. I highly recommend TwinTech Heating and Cooling.
May 17, 2018
Twintech's Salesman Dave arrived promptly was friendly and courteous, listened and assured us the installation would be completed according to our requests. The crew arrived early morning on May 11th, 2018 and worked through till late afternoon non-stop. They were very friendly, very professional, their expertise was excellent, their workmanship outstanding and the installation was completed in a timely and efficient manner. We were completely satisfied and happy with the quality of the work.
May 9, 2018
I had cold and hot spots all over my 70 yr old home. My furnace is quite new and Greg optimized the fan and furnace. The original installer just took it out of the box with factory settings and installed it- basically running at 50% of capacity. Greg also routed heat into my laundry room, yeah - so now I can renovate laundry room - thanks Greg. He is honest, professional and knowledgeable. I will be calling him back in the spring to optimize my AC as well.
May 8, 2018
Wonderful from beginning to end. I tend to fret and worry about home improvements but the excellent team at TwinTech put my mind as ease. They listen, they are patient and best of all ... the work they did is amazing! I chose the Goodman 80K BTU 2 stage furnace and the matching Goodman air conditioner. Greg, Grant and Poitr "Peter" arrived on time, took great care, explained everything to me and they answered all of my questions. They carefully adjusted the factory settings to optimize the furnace for my house and they also checked the duct work in the basement. Dave, the Sales Manager, came by to say "hello" and to see if I was happy. YES, I am happy with the work! The furnace is very quiet. I have it running on low just to circulate the air in the house and it's so much quieter than my old furnace. When I need new duct work for an upcoming basement renovation TwinTech will be my first choice. I highly recommend TwinTech. PS. They were even nice to my dogs.
Apr 21, 2018
Greg was prompt on the scheduled day of installation and the work was done well within the time estimated beforehand. Installation was neat and the equipment and scope of work was as specified in the quote. One item I must point out is that we were faced with a "No Heat" situation the day before the scheduled installation and Greg came out to address it free of charge. Not only that, but he also corrected an installation fault with our smart thermostat that was not part of the original job, again free of charge.
Mar 16, 2018
Greg came by to do a routine furnace checkup. He was very knowledgeable and professional, letting me know what's being checked/adjusted and giving me tips to ensure everything runs smooth. Very honest and upfront about what's working fine vs. what may need to be fixed/replaced. He didn't attempt to up sell anything that wasn't necessary. I'm glad to have finally found someone I can trust and rely on for all my HVAC needs - furnace, A/C, and hot water tank.
Mar 4, 2018
I'm very happy with the work that was done. Everyone from salesperson to the installers were friendly and professional. They were on time and cleaned up the job site after it was installed. They also answered all my follow up questions promptly. I wouldn't hesitate to work with them or recommend them again.
Feb 28, 2018
Thanks to the team at Twin Tech for a great job installing my new heat pump/ac unit. The guys were very polite and professional. When they left you would never have known they had been there except for the new Mitsubishi unit on the wall!! would highly recommend the Twin Tech team.
Feb 28, 2018
Installed professionally, no delays, no rework needed. Very reliable contractor and sales person. Also installed BBQ gas line and some duct work.
Feb 19, 2018
Greg and Grant are friendly, reliable, and knowledgeable HVAC professionals. The twins, Dave and the entire team provided efficient top quality service. Our family plns to use Twintech for all of our future HVAC needs.
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