Comparison Breakdown
Full Calculation Table
| Item | Heat Pump | Furnace + AC |
|---|
How to Use the Heat Pump vs Furnace Cost Calculator
Choose the size in tons that matches the home's heating and cooling load for both systems being compared.
Choose mild, moderate, or cold to reflect how much the local winter climate affects heat pump efficiency.
Enter local electricity and natural gas rates, and choose how many years to compare total cost over.
Click Compare Total Cost to see installed cost, annual operating cost, and total cost over the comparison period for both options.
Why This Comparison Isn't a Simple Answer
Heat pump versus furnace is one of the most climate-dependent comparisons in residential HVAC. A heat pump costs more to install than a furnace alone but can deliver more heat energy per unit of electricity consumed than electric resistance heating, a ratio the heat pump COP calculator works out, while a furnace burns fuel at a fixed AFUE efficiency regardless of outdoor temperature. Which one wins on total cost depends heavily on local climate, utility rates, and how many years the comparison runs over.
Why Climate Severity Is the Biggest Variable
A heat pump's efficiency advantage shrinks as outdoor air gets colder, since there's less ambient heat available to extract. In a mild climate, a heat pump can maintain strong efficiency through most of the heating season, making it a clear operating-cost winner. In a genuinely cold climate, a standard heat pump's efficiency drops enough that it may lean heavily on backup heat during the coldest stretches, narrowing or even reversing its operating cost advantage over a furnace. Natural Resources Canada's testing found that cold-climate heat pumps cost more to run than natural gas where gas is cheap. At the default 2 ton size, $0.13 per kWh electricity, and $0.04 per kWh of gas, this calculator puts the heat pump's yearly cost at $407 in a mild climate, $468 in a moderate one, and $600 in a cold one, against about $524 for the furnace and air conditioner.
The Heat Pump's Structural Advantage: Cooling Too
A furnace-only approach still needs a separate air conditioner to cool the home in summer, while a heat pump provides both from one outdoor unit. This calculator's furnace-side comparison includes an air conditioner cost to make the comparison fair, since comparing a furnace alone against a heat pump would understate what it actually costs to get both heating and cooling with a furnace-based system. At 2 tons that works out to $8,400 for the heat pump against $11,500 for the furnace ($5,900) plus air conditioner ($5,600), and that $3,100 head start is what lets the heat pump win the 15-year total in every climate setting at the default rates.
Utility Rates Move the Math Constantly
Electricity and natural gas prices vary by province and change over time, and the relative cost per unit of delivered heat between the two fuels is really what determines the winner here, not just which fuel seems cheaper in the abstract. The Canada Energy Regulator reports that residential electricity prices vary widely across Canada, with Quebec and Manitoba lowest and Alberta, Saskatchewan, and Prince Edward Island generally highest among the provinces. Moving electricity from $0.13 to $0.20 per kWh in a cold climate takes the heat pump's yearly cost to $923 and flips the 15-year result to the furnace and air conditioner by about $1,980. Entering current local rates, rather than relying on national averages, gives a much more accurate picture for a specific home.
Hybrid Systems as a Middle Path
A dual-fuel or hybrid system pairs a heat pump with a furnace, using the heat pump for milder weather and automatically switching to the furnace once temperatures drop below an efficiency threshold, and the dual fuel calculator can help find that switchover point. This can capture much of the heat pump's savings during shoulder seasons while keeping a furnace's dependable output for the coldest days, at the cost of installing two systems instead of one. For a deeper look at just the heat pump side of this decision, see the heat pump cost calculator, and for the furnace side, see the furnace cost calculator.
Frequently Asked Questions
It depends on the balance between the heat pump's equipment cost and its operating cost, which varies by climate, local electricity and gas rates, and how cold the winters get. At this calculator's defaults for a 2 ton system, the heat pump costs $8,400 installed against $11,500 for a furnace plus air conditioner, and it comes out ahead over 15 years in every climate setting. Raising electricity to $0.20 per kWh in a cold climate flips that result to the furnace, which is why entering your local rates matters.
A heat pump's efficiency advantage over electric resistance heating shrinks as outdoor temperatures drop, since it has to work harder to extract heat from colder air. A gas furnace's efficiency, measured by AFUE, stays essentially constant regardless of outdoor temperature. In a very cold climate, a standard heat pump may need to lean heavily on backup heat, while a furnace keeps performing consistently, which is why climate severity is one of the biggest variables in this comparison.
Yes, in an important way: a heat pump also provides cooling from the same equipment, while a furnace-only approach still needs a separate air conditioner to cool the home. This calculator prices the furnace side as a furnace plus an air conditioner, and adds the air conditioner's electricity to its yearly cost, which is one of the heat pump's structural advantages over a furnace that only heats.
A hybrid, or dual-fuel, system pairs a heat pump with a furnace, automatically switching to the furnace when outdoor temperatures drop below a set point where the heat pump becomes less efficient. This can capture much of the heat pump's mild-weather savings while keeping a furnace's consistent output for the coldest days, though it adds the cost of two systems rather than one. It's a legitimate middle path worth discussing with a contractor familiar with the local climate.