CHECK THE OUTPUT
Ask for the selected indoor/outdoor combination’s heating capacity at your design conditions—not just the nominal “tonnage.”
THE HOMEOWNER’S HEAT PUMP GUIDE
HEAT PUMPS.
EXPLAINED FOR
THE NORTH.
More comfort. Better understanding.
Discover how heat pumps work—and what matters when your winter is a northern winter.
01 / SIMPLE IDEA. SMART TECHNOLOGY.
IT MOVES HEAT.
THAT CHANGES EVERYTHING.
A heat pump transfers heat using electricity and refrigerant. One system can warm your home in winter and cool it in summer. Switch modes below to see the idea in action.
Simplified illustration of heat transfer—not an installation drawing.
01
BRING WARMTH INSIDE.
Even cold outdoor air contains heat. The refrigerant absorbs some of that energy, and the compressor raises its temperature so heat can be released indoors.
Electricity powers the process. The system moves heat rather than relying only on creating it with an electric heating element.
The reversing valve changes refrigerant flow when the system switches between heating and cooling.
02 / THE QUESTION EVERY NORTHERNER ASKS
YES, COLD MATTERS.
SO DOES THE DESIGN.
“It runs in cold weather” and “it heats my entire home at that temperature” are different claims. A northern design checks capacity, operating limits, cost and backup heat together.
YELLOWKNIFE FIELD EVIDENCE
LOCAL WINTERS.
LOCAL REALITY.
Arctic Energy Alliance’s 2026 report found that cold-climate heat pumps can operate in Yellowknife, with secondary heat still required in extreme cold. Operating economics change with temperature and fuel prices.
Read the local study summary ↗EXPLORE THE SEASONS
A STRONG SEASON TO CONTRIBUTE.
When the heating demand is lower, a heat pump may cover more of the home’s needs. In the North, milder weather can also offer more favourable operating economics.
THREE LIMITS. DIFFERENT QUESTIONS.
Capacity: When does the home require more heat than the heat pump can supply?
Cost: When does another available heat source cost less to operate?
These points can differ. There is no universal switchover temperature for every home.
Operating limit: What temperature range does the manufacturer permit for this exact matched system? A minimum operating temperature does not guarantee enough heat for your home.
PLAN THE BACKUP
Keep dependable heat available for the conditions the heat pump cannot cover. Controls must coordinate the systems.
DESIGN FOR DEFROST
Frost can form on the outdoor coil. Defrost clears it, producing water that needs a planned route away from trouble spots.
03 / START WITH THE HOME
DIFFERENT HOMES.
DIFFERENT WAYS TO FIT.
Ducted and ductless describe how air is delivered. Hybrid describes how a heat pump works with fuel-fired heat. Your distribution system and backup strategy are related decisions.
WHOLE-HOME AIR DISTRIBUTION
MAKE THE MOST OF YOUR DUCTS.
A ducted heat pump uses compatible indoor equipment and ductwork to move conditioned air throughout the home.
- Existing ducts may be usable after assessment.
- Airflow, return paths and room comfort matter.
- The indoor coil, blower, outdoor unit and controls must be compatible.
Ask at your assessment: Can my ducts deliver the airflow this system requires?
A USEFUL STARTING POINT
WHAT DOES YOUR HOME HAVE NOW?
Select an answer for questions to bring to JSL. This is a conversation starter, not equipment selection.
We’ll help you identify what to check before choosing a system.
04 / UNDERSTAND THE NUMBERS
EFFICIENCY ISN’T
THE SAME AS SAVINGS.
COP compares heat delivered with electricity consumed at a particular condition. Your bill also depends on energy prices, weather, the home and backup heat operation.
COP
1.04.0
Learning example only. These values are not a prediction for a particular model, temperature or northern winter.
1.0unit of electricity
+2.0units from outside
=3.0units of heat indoors
COP
A point-in-time efficiency ratio. It changes with conditions and equipment operation.
HSPF2
A standardized seasonal heating rating. Useful for comparison, but not your home’s annual bill.
SEER2
A standardized seasonal cooling rating. It does not tell you winter heating capacity.
CAPACITY
The rate of heat delivered, often in kW or BTU/h. Ask how it changes as outdoor temperatures fall.
What should a credible operating-cost comparison include?
Your current fuel and delivered price; electricity rate structure; seasonal equipment performance; home heating load; backup operation; and any added cooling use. Installation, maintenance and fixed charges also matter to total ownership cost.
A lower electricity input does not automatically mean a lower bill than another fuel. Ask for written assumptions and a range of outcomes rather than one guaranteed saving.
05 / THE DETAILS THAT MAKE THE DIFFERENCE
A GREAT SYSTEM
STARTS BEFORE INSTALL DAY.
The equipment is one part of the job. A thoughtful plan connects the house, the installation and the way you’ll actually use it.
01 Understand the building
A heating and cooling load assessment considers insulation, windows, air leakage, layout and local design conditions. Floor area alone is not enough to size equipment.
02 Check distribution and electrical
Assess duct capacity and airflow, or the spaces each indoor head can actually serve. An electrical assessment checks supply capacity and the proposed heat pump and backup loads.
03 Plan the outdoor location
Allow manufacturer-required airflow and service clearances. Consider snow accumulation, roof shedding, wind, sound and vibration. Plan suitable supports and safe defrost drainage.
04 Coordinate heat pump and backup
Verify the equipment combination and controls. Document when backup operates, what happens below the heat pump’s operating limit and how the homeowner should use the thermostat.
05 Commission and explain the system
Qualified installers should check operation according to the manufacturer’s requirements. Ask for a walkthrough of controls, filters, maintenance, warranty terms and service contacts.
MAKE YOUR FIRST CONVERSATION COUNT
YOUR ASSESSMENT CHECKLIST.
Tick what you have ready. Print your list and bring it to your appointment.
0 of 6 ready
Selections stay on this page only. No personal information is submitted.
EVERYDAY OWNERSHIP
KNOW WHAT’S NORMAL.
KNOW WHEN TO CALL.
STEADY OPERATION
Variable-capacity systems can run for longer periods at lower output. Follow the recommended thermostat strategy instead of assuming longer run time means a fault.
FROST & DEFROST
Brief defrost cycles, water and a visible vapour cloud can be normal. Persistent heavy ice, repeated faults or poor heat delivery deserve a service call.
SIMPLE HOMEOWNER CARE
Follow the manual for filter cleaning and replacement. Keep accessible airflow areas clear. Leave electrical, refrigerant and internal service work to qualified professionals.
Do not chip ice from the coil, open electrical panels or wrap an operating unit in a solid winter cover. Ask JSL how to use setbacks and backup controls with your particular system.
CLEAR ANSWERS. BETTER DECISIONS.
THE QUESTIONS
WORTH ASKING.
Practical answers for homeowners considering a heat pump in Yellowknife and the North.
Can a heat pump replace my furnace in Yellowknife?
It depends on the design and equipment. Local field evidence supports retaining a secondary heat source for extreme cold. Do not remove dependable backup based only on a brochure’s lowest operating temperature.
Will I save money?
Possibly, but it is not automatic. Compare current fuel and electricity costs, your home’s demand, seasonal performance and backup operation. A heat pump can reduce energy use while costing more to run than another available fuel in some conditions.
Can I keep my existing furnace or boiler?
Possibly. A furnace may work with a compatible ducted heat pump; a ductless system may complement a boiler. Equipment condition, airflow, controls and the overall design need assessment.
Can one ductless head heat all my rooms?
Not necessarily. Closed doors, room layout and heat losses affect distribution. One indoor head serving an open area does not prove every bedroom will be comfortable. A multi-zone or other distribution design may be needed.
Does a bigger heat pump always work better?
No. Correct selection balances heating and cooling needs, capacity at relevant temperatures, modulation, airflow and backup. A bigger nominal size is not a substitute for design.
What happens in a power outage?
A heat pump needs electricity. Many furnaces and boilers also need power for controls, fans or pumps. Discuss an outage plan separately; retaining fuel heat does not automatically provide heat without electricity.
What about noise?
Sound depends on the equipment, operating speed, mounting and location. Ask about placement near bedrooms and neighbours, vibration isolation and model-specific sound information.
Are there rebates available?
Programs, eligibility and funding change. Visit JSL’s Yellowknife heat-pump and rebate page for the next step, and confirm current program terms before purchasing. A listed program does not establish that your equipment or home qualifies.
LET’S LOOK AT YOUR HOME.
YOUR NEXT STEP?
A BETTER CONVERSATION.
Bring your questions, your comfort priorities and your current heating information. Talk to JSL Mechanical about the right next step.
Sources, context & how to use this guide
This homeowner guide adapts durable concepts from the supplied HP Technical Training material: heat transfer, system configurations, balance points, airflow, installation planning and commissioning. Older model specifications and historical cost examples are not presented as current offers.
- Natural Resources Canada: Heating and cooling with a heat pump — background on system operation and terminology.
- Arctic Energy Alliance: Yellowknife field study summary, June 2026 — local operating and backup-heat context. The study involved two mini-split installations and does not predict every home.
Reviewed 18 October 2026. Education only; final design uses current manufacturer requirements and a qualified assessment of the actual home. Illustrations are conceptual. Equipment imagery is illustrative and is not represented as a JSL installation.