If you’re comparing a heat pump vs. gas furnace for your Bloomington home, the right choice depends on your home’s heating needs, how cold it gets outside, and the systems already in place.
For many Bloomington homes, the choice comes down to three options: a gas furnace, a cold-climate heat pump, or a dual-fuel system that combines both. Heat pumps can be highly efficient during milder weather, while gas furnaces provide strong heating output during extreme cold.
The right choice depends on your home’s insulation, ductwork, electrical capacity, current heating system, and local utility rates.
A heat pump can heat and cool your home with one system and may cost less to operate during milder weather.
A gas furnace delivers dependable heat even during Minnesota’s coldest temperatures. A dual-fuel system combines the two, allowing the heat pump and furnace to run when each makes the most sense.
How a Heat Pump Heats Your Home
A heat pump is an air conditioner that runs in both directions. In summer, it pulls heat out of your house and dumps it outside.
In winter, it reverses the cycle and pulls heat from the outdoor air into your home, even when that air feels cold to you. There’s still usable heat energy in 20-degree air; a heat pump just needs a refrigerant loop to move it indoors.
That’s why heat pumps run so efficiently.
A gas furnace is rated by AFUE, which measures how much of its fuel becomes usable heat. Heat pumps are evaluated differently because they move heat rather than generate it. Under the right conditions, a heat pump can deliver several units of heat for every unit of electricity it consumes.
The catch has always been cold air. Traditional heat pumps could lose heating capacity and efficiency as outdoor temperatures dropped, which made them a tougher choice for Minnesota’s coldest weather. Modern cold-climate models are designed to perform at much lower temperatures.
Cold-climate heat pumps are available with published low-temperature performance well below 0°F. Some models are specifically designed to maintain substantial heating capacity at temperatures such as -13°F and below.
Where a Gas Furnace Still Wins
A gas furnace doesn’t rely on extracting heat from outdoor air, so its heating output isn’t reduced by falling outdoor temperatures in the same way a heat pump’s capacity can be.
A few other advantages hold up:
- Lower upfront cost. A new gas furnace typically installs for less than a comparable cold-climate heat pump system.
- Works with a backup generator. A gas furnace still needs electricity for controls and the blower, but its electrical demand is generally much lower than that of a heat pump. That can make it easier to operate from a properly sized generator.
- The infrastructure is already there. Most Bloomington homes have an existing gas line, so replacing a furnace with another furnace is usually the simpler job.
Why Consider a Dual-Fuel Heating System?
Dual fuel pairs a heat pump with a gas furnace. The heat pump handles heating when outdoor temperatures and utility rates make it economical. When conditions change, the system switches to the furnace automatically.
The changeover temperature isn’t universal. A contractor can set it based on the heat pump’s performance, the home’s heating load, utility rates, and homeowner preferences.
That gives Bloomington homeowners another option. Instead of choosing between a heat pump and furnace, you can use both systems as part of one heating strategy.
When dual fuel may not make sense
Dual fuel isn’t the right choice for every home. Another option may make more sense if:
- Your electrical panel can’t support the added heat pump load without an upgrade.
- Your home doesn’t have central ductwork. Ductless mini-splits require a different system design.
- Your existing furnace is relatively new, works reliably, and doesn’t need replacement.
- Your home has other heating requirements that make a different system more appropriate.
What Does It Cost to Run a Heat Pump vs. Gas Furnace?
The real comparison comes down to current electricity and natural gas rates, weighted against each system’s efficiency rating.
A high-efficiency furnace (95%+ AFUE) burning cheap natural gas can beat a mediocre heat pump on cost-per-BTU. But a cold-climate heat pump with a strong HSPF2 rating, running on Xcel Energy’s residential rates, usually costs less to operate above freezing than gas does.
Below that, the math shifts back toward gas. That crossover point is why dual fuel exists, and why a blanket answer to “is it cheaper to heat with gas or heat pump” doesn’t hold up. It comes down to your rate plan, your furnace’s age, and how cold your winters run.
What determines heating cost?
Several factors affect what you’ll pay to heat your home:
- Electricity rate: Higher electricity rates make heat-pump operation more expensive.
- Natural gas rate: Lower gas rates can make a high-efficiency furnace attractive.
- Heat pump efficiency: A cold-climate model with strong low-temperature performance can operate more efficiently in colder weather.
- Furnace efficiency: A 95%+ AFUE furnace uses fuel more efficiently than an older furnace.
- Outdoor temperature: Heat pump capacity and efficiency generally decline as temperatures fall.
- Home heating load: Insulation, windows, air sealing and ductwork affect how much heat your home needs.
Because these factors vary from one home to another, comparing equipment based on purchase price alone doesn’t tell you what your long-term heating costs will be.
Plan Your Heating System Before Winter
October is the window to make this decision. Once cold weather arrives, HVAC contractors can become much busier, and homeowners may have fewer equipment and scheduling options.
Homeowners who plan in the fall get their pick of equipment and a technician who isn’t booked solid.
Alpha Plumbing, Heating & Cooling offers free heating system evaluations for Bloomington-area homeowners comparing a heat pump, gas furnace or dual-fuel system. We’ll evaluate your existing equipment, ductwork and electrical capacity and help you compare the options based on your home’s heating needs.
FAQs
Is it cheaper to heat with gas or a heat pump in Minnesota? It depends on your electricity and gas rates and how cold it gets. Above freezing, a cold-climate heat pump usually costs less to run.
Can a heat pump replace my furnace completely in Minnesota? A cold-climate heat pump like the Mitsubishi Hyper-Heat or Daikin Fit can handle a Minnesota winter on its own, but most homeowners here pair one with a gas furnace as backup for the coldest days.
What temperature does a dual fuel system switch from heat pump to furnace? Most systems are set to switch around 25-30°F, though that can be adjusted based on your home’s insulation and your local utility rates.
Do I need a bigger electrical panel to add a heat pump? Not always. It depends on your panel’s current capacity and what other loads are on it. Our technicians check this during the free evaluation before recommending equipment.
How long does a heat pump last compared to a gas furnace? Both typically run 15-20 years with regular maintenance. Heat pumps run more hours per year (heating and cooling) than a furnace does, so staying current on maintenance pays off more with a heat pump.
