What Does a Heat Pump Do? The Guide to Ontario’s HVAC Upgrade

A heat pump reverses the AC principle. While an Air Conditioner pulls out indoor heat, a heat pump extracts from outdoor air, even in extreme cold. It is indeed the ideal HVAC upgrade for 2026.

In simple terms, a heat pump is a heat moving system, and it does not produce heat with the help of combustion like that of a gas furnace or an electric heater. To be more precise, it moves heat from one place to another.

Switching to this technology can bring down your energy bills by 40%-60%. Source: [NRCan]. As Ontario’s frequently chosen installer, LG Home Comfort is helping homeowners deal with the high carbon taxes and changing rebates by upgrading HVAC for 2026 today.

All thanks to the latest engineering, our heat pumps don’t just survive winters; they thrive in them.

How a Heat Pump Actually Works

To understand how a heat pump works, think of your kitchen refrigerator. Your fridge does not “create” cold; it removes heat from the insulated box and dumps it into your kitchen. A heat pump does the same for your entire house using a 4-step heat pump cycle:

• Evaporator: Even at low temperatures, outdoor air holds thermal energy. Low-pressure liquid refrigerant absorbs it, turning into a gas.
• Compressor: That gas is then squeezed by the compressor; squeezing makes the gas extremely hot.
• Condenser: Hot gas flows indoors, releasing warmth through the vents.
• Expansion Valve: After the gas has cooled down, it changes to a liquid state and is let outside to do it all over again.

A high-efficiency gas furnace delivers a 95% efficiency; a heat pump runs with a COP heat pump theory.

COP = 3.0 means 3 units of heat per 1 unit of electricity

Irrespective of you using a central system or ductless mini-splits, energy is being moved instead of burning fuel.

Heat Pumps in Ontario Winters

One of the biggest myths we hear a lot about is that heat pumps do not work in extremely cold weather. For a fact that was true if it was the 90s, but with the technological advancement and engineering upgrades, the modern systems are more than ready for the frigid temperatures.

The modern heat pump tech uses ultra-modern flash injectors and variable speed inverters to extract heat from freezing air. These latest units retain their heating capacity to 100% to -15°C, on the other hand some can still maintain their heating capacities to maximum even when the temperature slips down to -25°C.

Energy Savings & ROI in Ontario

The ROI for a heat pump in Toronto is higher than ever. Being in Toronto, you could save anywhere between $800-$1200 annually. Homeowners can save even more if the gas pump is used during the non-peak hours when electricity is the cheapest.

People that live in colder areas like Sudbury can save even more by using heat pumps instead of burning expensive fuel. No doubt the initial cost is higher than an air conditioner, but the setup starts paying you back from the day it’s installed.

Ontario Heat Pump: Payback and Savings Table:

2026 Ontario Heat Pump Rebates

When it comes to upgrading your home, timing is of the essence. The heat pump rebates landscape in 2026 is anchored by the Home Renovation Savings (HRS). HRS offers up to $7500 for income-qualified pre-2000 homes (or $1,250/ton). Stack with federal Greener Homes incentives for bigger savings. Act now, programs phase out post 2026.

To get qualified for this deal, the heat pump installation should be carried out by professional HVAC technicians. These programs are intended to be a head start for Ontario’s future towards electrification, meaning they are here for a limited time. That means while you wait and watch, you could lose thousands of subsidies while these programs are gradually slipping away.

To qualify for this deal, you must first have the complete installation done by a registered HVAC professional. The Ontario Home Renovation Savings program is intended to support the province’s transition to electricity. These schemes are not permanent and will be phased out. If you delay any further, you could lose thousands of dollars in rebates.

Hybrid Heat Pumps: Best of Both Worlds

Do you not want to quit your furnace? A hybrid heat pump also known as dual fuel system heat pump combines an electric heat pump with the existing gas furnace.

A heat pump takes care of the heating around 90% in a year, and when the temperatures slip below -25°C and as heat pump cannot manage beyond that, gas furnace kicks in.

• Advantages: Top rebates, peak efficiency.
• Downsides: Higher upfront, dual fuel setup.

Installation Costs by Ontario City

For Ontario residents, the installation cost of a heat pump depends on the area of their home and the old ductwork. A homeowner invests an average of $10k-$18k post rebates.

• Ductwork: Current ductwork might not be sufficient so upgrading to newer ones for better airflow can cost you around $2k+.
• Northern Sizing: In regions like Sudbury, the units installed are 20% larger to make sure the unit can handle the extreme cold temperatures.
• Electrical: If the existing wiring system is only capable of handling 100amp, it must be upgraded to be able to handle 200amp.

Maintenance Tips for Ontario Heat Pumps

Heat pumps that are well-maintained and looked after commonly reach a lifespan of 15-20 years. For that to happen, a homeowner must spend $200-$300 annually (non-negotiable).

• Keep the drifts clear: Make sure the snow does not obstruct or bar the outdoor units of air flow.
• Snow Stand: Mostly, heat pumps installed in Ontario are mounted on a 12-inch snow stand that lets the drainage water flow easily when the ice melts.
• Check Filters: The indoor filters should be changed every 3 months to sustain the highest efficiency.

Heat Pump FAQs for Ontario Homeowners

Common Objections Debunked

• “Heat pumps make a lot of noise” – Well, not anymore. The latest heat pump models are engineered with cold-climate technology, plus a newly designed inverter technology which keeps the noise low – as for now it is just a soft hum.
• “Heat pump is not that reliable” – When you trust LG Home Comfort for an install, these heat pumps are as reliable as a furnace.
• “Utility bills will see a surprise surge” – When you start using a heat pump, the electricity bill might go up no doubt, however gas, oil, and propane bill goes down, leading to net saving.

Ready for Your Upgrade?

Eventually, an old heating system burns a hole in your wallet. The more you wait, the more hard-earned money keeps slipping out of the vents.

Upgrade now for 40-60% savings +$7500 rebates in 2026 before changes. Book a free assessment.