What Is a Heat Pump and How Does It Work?
- What Is a Heat Pump and How Does It Work?
- Can a Heat Pump Work in Canadian Winters?
- What Types of Heat Pumps Are Used in Canadian Homes?
- Is a Heat Pump the Same as an Air Conditioner or Furnace?
- What Are the Benefits and Downsides of a Heat Pump?
- How Much Electricity Does a Heat Pump Use?
- How Do You Plan Backup Power for a Heat Pump?
- Ask for the Load Data Before Choosing a System
- FAQs
A heat pump is an electric system that moves heat between your home and another place. It doesn't burn fuel to create heat inside the unit.
In winter, it brings heat indoors, while the same cooling cycle moves heat outside in summer.
The right system depends on your climate, home, and heat loss. Its winter rating, installation, and backup heat also matter, so start with the refrigerant cycle.
What Is a Heat Pump and How Does It Work?
A heat pump uses electricity to move thermal energy between indoors and outdoors. Refrigerant carries the heat through two coils. A compressor and expansion device change its pressure and temperature. In many systems, a reversing valve changes the flow direction for heating or cooling.
To understand how a heat pump works, start with heat transfer. A heat pump moves thermal energy between your home and the outdoors rather than generating heat through combustion. Even cold air holds thermal energy that a heat pump can collect and move.
The cycle follows five main steps:
Refrigerant absorbs heat as it passes through the evaporator coil.
The compressor raises the refrigerant's pressure and temperature.
The condenser coil releases the heat into the destination space.
The expansion device lowers the refrigerant's pressure and temperature.
A reversing valve changes the flow direction when the mode changes.
Electric power runs the compressor, fans, pumps, and controls. Under the right conditions, the system moves more heat than the power it uses. Its coefficient of performance, or COP, shows this ratio in a set test.
COP isn't one fixed number for the whole year because conditions change it. These factors include weather, unit speed, and frost.
If you ask what's a heat pump in everyday terms, picture a reversible refrigerator. A refrigerator moves heat out of its cabinet, while a heat pump moves it into or out of your home.
Heating capacity may appear in kW, Btu/h, or tons. Power input is a separate value. Natural Resources Canada explains the heat-pump cycle and its main parts in more detail.
Can a Heat Pump Work in Canadian Winters?
Yes, the right heat pump can work below freezing because cold outdoor air still holds heat. Cold-climate models can work in deeper cold, but their ratings vary by model.
Heating capacity is the heat a unit can deliver. COP compares that heat with the power used in a set test. At the balance point, the heat pump alone no longer meets your home's heat loss. Colder weather may then increase run time and reduce available output.
An outdoor coil can collect frost in heating mode, so the unit may briefly reverse to clear it. Some homes also use a furnace or electric resistance heat for extra warmth. Resistance heat can draw far more power than the compressor alone.
EcoFlow TITAN Plus may support selected 120 V and 240 V circuits during an outage. First, an HVAC professional and electrician must confirm every connected load, its demand, and the safe connection method.
The base system stores 5 kWh and can expand from 5 kWh to 30 kWh. Battery output is 7.2 kW. The stated 10 kW maximum requires compatible solar and battery output working together. It isn't battery-only output.
Smart Home Panel 10 supports automatic control for up to 10 selected circuits and can switch within 20 ms. A qualified electrician must complete hardwired work. These ratings don't prove that the system can run your compressor, fans, defrost cycle, and auxiliary heat together.
If you need more winter detail, the guide to how a heat pump works in cold Canadian weather covers changing output, defrost, and backup heat.
What Types of Heat Pumps Are Used in Canadian Homes?
Canadian homes mainly use air-source or ground-source systems. The unit may deliver heat through ducts, indoor heads, or a water-based system.
Type | Heat source or sink | How it delivers heat | Typical fit | Main point to verify |
Ducted air-source | Outdoor air | Existing or new ducts | Central heating and cooling | Duct size, home heat loss, and winter output |
Ductless mini- or multi-split | Outdoor air | One or more indoor heads | Homes without ducts or rooms needing separate zones | Number and placement of indoor units |
Ground-source | Ground or groundwater | Ducts or a suitable water-based system | Sites that can support ground-loop work | Land, drilling, loop design, and project cost |
Air-to-water | Outdoor air | Water-based distribution | Some radiant, fan-coil, or low-temperature water systems | Required water temperature and system fit |
To answer what are heat pumps grouped by, separate the heat source from heat delivery. “Air-source” names where the system collects or releases heat. “Ducted” and “ductless” describe how it moves heat through your home.
A mini-split is an air-source heat pump with one or more indoor heads, not a separate source type. Ground-source units use the steadier temperature below the ground instead of outdoor air.
Is a Heat Pump the Same as an Air Conditioner or Furnace?
No. A heat pump shares its cooling cycle with an air conditioner, yet it can reverse that cycle for heating. A furnace creates heat through fuel combustion or electric resistance.
System | Main function | Energy input | How it handles heat | Key Canadian consideration |
Reversible heat pump | Heating and cooling | Electricity | Moves heat in either direction | Winter output and possible backup heat |
Central air conditioner | Cooling | Electricity | Moves indoor heat outside | Needs a separate heating system |
Gas or oil furnace | Heating | Fuel plus some electricity | Creates heat through combustion | Fuel access, venting, local costs, and emissions |
Electric furnace or resistance heat | Heating | Electricity | Changes electricity directly into heat | Often draws more power than a suitable heat pump for the same heat output |
A hybrid system pairs a heat pump with a furnace or boiler. Its controls choose the heat source, so the two units may run at different times.
Your existing ducts, fuel source, climate, and budget shape the choice. A wider look at Canadian home heating options can help you compare those needs before asking for quotes.
What Are the Benefits and Downsides of a Heat Pump?
A heat pump can heat and cool your home with one system, yet results still depend on its design and installation.
Possible benefits include:
Heating and cooling through one reversible system.
Less power use than resistance heat under the right conditions.
No fuel combustion at the heat-pump unit.
Ducted and ductless choices for different homes.
Variable-speed models that adjust to changing loads.
Possible limits include:
A higher upfront equipment and installation cost.
Possible panel, duct, or insulation work.
Lower capacity or COP as outdoor temperatures fall.
Defrost cycles, filters, noise, placement, and service needs.
Extra heat that may raise power use on cold days.
Ask each contractor, “What is the heat pump rated to deliver at our local winter design temperature?” Also ask for a CSA F280 heat-loss calculation. Confirm the backup heat plan and any service upgrades before choosing a system.
How Much Electricity Does a Heat Pump Use?
Power use changes with the weather, your home's heat loss, thermostat settings, compressor speed, defrost, and extra heat.
Keep these measures separate:
Electrical input in kW shows the power the system draws.
Heating capacity shows how much heat the system can deliver.
Energy use in kWh combines power draw with operating time.
Performance tables show how one model behaves under set conditions.
You can make a basic estimate with this formula:
Estimated electrical energy = average electrical input (kW) × operating time (h)
This result is only a planning estimate because compressor speed, cycling, frost, and weather change actual use. Electric resistance backup may add a much larger load. Use the unit label and performance data instead of a national average.
How Do You Plan Backup Power for a Heat Pump?
Start with the exact loads and connection method. Home size, heat-pump tonnage, and heat output can't define the backup system by themselves.
List the outdoor unit, indoor fan, thermostat, controls, pumps, drains, and extra heat.
Record each load's voltage, rated input, maximum current, and starting behaviour.
Decide whether electric resistance heat must run during backup.
Estimate the required energy and include losses, cycling, cold, reserve, and other loads.
Ask an HVAC professional and electrician to confirm the final plan and local requirements.
EcoFlow TITAN is a 120 V/240 V selected-circuit option. It may fit when the verified HVAC and household loads stay within its limits.
The base system stores 5 kWh and can expand from 5 kWh to 30 kWh. It supplies 7.2 kW of split-phase output and accepts up to 4 kW of solar input through one MPPT.
Smart Home Panel 10 supports automatic selected-circuit use and switching within 20 ms. Hardwired circuit work needs a qualified electrician, and the IP20-rated unit must remain dry and indoors.
Both TITAN models provide 7.2 kW from the battery. TITAN Plus adds a conditional 10 kW path with compatible solar input. It also accepts more solar input. Adding battery capacity extends stored energy, but it doesn't raise the inverter's output.
No capacity figure can promise a set heating time. Weather, defrost, extra heat, battery reserve, and all other loads affect runtime.
Ask for the Load Data Before Choosing a System
Ask for a recognized heat-loss and heat-gain calculation. Compare winter capacity, power draw, extra heat, and installation needs. If outage heating matters, have your HVAC professional and electrician list every circuit and load first.
Once you confirm those details, you can compare EcoFlow whole-home backup power solutions for your selected-circuit plan.
FAQs
What is the downside of a heat pump?
A heat pump can cost more to install than some heating systems. It may also need duct, panel, or insulation work. Cold-weather output, defrost, and extra heat vary by model and home.
Are heat pumps worth it in Canada?
They can be a good fit when the unit matches your climate and home. Compare winter performance, installation cost, local energy prices, your current system, and home heat loss. Don't rely on a promised payback period.
Is a heat pump the same as an AC?
No. Both systems can move heat outdoors, but a reversible heat pump can also change direction and move heat indoors.
Is a heat pump better than gas central heating?
Neither choice suits every home. Compare your climate, heat loss, installed cost, local rates, current system, emissions goals, and outage plan.