Cold climate heat pumps · Sheboygan County
Cold climate heat pumps in Sheboygan County.
Everyone asks the same thing first: do they actually work when it is below zero. Yes. What matters is what happens to the output when it gets there, and whether you want a furnace standing behind it.
- Carrier Factory Authorized Dealer
- 8-time Carrier President's Award winner
- NATE-certified technicians
- We check incoming line voltage
The below-zero question
Do heat pumps work when it is below zero in Wisconsin?
Yes, and the modern cold-climate equipment is not the heat pump your uncle had in 1994. But there is real detail underneath that answer, and anyone who gives you a flat yes without the rest of it is selling.
A heat pump does not make heat. It moves it.
That is the whole trick, and it is why the below-zero question confuses people. There is still usable heat in outdoor air at zero degrees. A heat pump pulls it in and concentrates it. It is a refrigeration cycle run backwards, which is also why the same box cools the house in July.
Output falls as the temperature falls
This is the honest caveat. A cold-climate heat pump keeps running at very low outdoor temperatures, but it produces less heat at ten below than it does at forty. Which is why the number that matters is not the nameplate tonnage. It is the rated capacity at our design temperature.
There are two balance points, and you should know both
The capacity balance point is the outdoor temperature where the heat pump can no longer keep up with the heat your house is losing on its own. Below it, backup heat has to step in to keep you comfortable. The economic balance point is the temperature where running the heat pump starts to cost more than running your furnace or other backup. That depends on your local electric and gas rates, not just the weather. We calculate both numbers for your house and tell you what they are before you buy anything, so you know when your system will switch over and why.
Dual fuel is what we recommend most often here
A heat pump outside, a gas furnace inside, and one control that decides which one runs based on the outdoor temperature. The heat pump handles the shoulder seasons, which is where most of Wisconsin's heating hours actually are. The furnace takes the two or three weeks a year that are genuinely brutal.
All-electric makes most sense when there is no gas line
If you heat with propane, fuel oil or electric baseboard today, a cold-climate heat pump usually wins outright and it is not close. If you have natural gas at the meter, dual fuel is more often the right answer than going all-electric, and we will show you the arithmetic rather than asking you to take our word for it.
We check incoming line voltage before we commission
Most shops skip this. A heat pump is inverter-driven, and line voltage in parts of the county sits near the top of the legal range. High voltage quietly destroys inverter electronics. Measuring it costs us fifteen minutes and saves you a board in year three.
We will not put in a heat pump we do not think will hold your house. If your load, your ductwork or your panel says a furnace is the better machine for you, that is what we will quote.
Three keys
Every heat pump we install comes down to three things.
Get all three right and the system performs the way it was rated to. Miss one and it will not, no matter what brand is on the box.
Correct application
The right equipment for your house, your fuel and the way you live in it. A heat pump, a furnace or both, chosen for what your home actually needs, not what is easiest to sell.
Correct size and efficiency
Sized to your house's real heating and cooling load, not a square-foot rule or the old unit's label, and matched to an efficiency level that actually pays back for you.
Correct installation
Installed to Carrier's specifications by NATE-certified technicians, with refrigerant charge, airflow and incoming line voltage checked before we leave.
No shortcuts. No “just as good.” No low-price failures.
Heat pump vs furnace
Heat pump, furnace, or both
There is no winner in this table that applies to every house. What decides it is which fuel is already at your house, what your electric rate looks like, and whether you need to buy cooling anyway.
| Cold climate heat pump | Gas furnace | Dual fuel, both together | |
|---|---|---|---|
| What the equipment does | Heats and cools from one outdoor unit | Heats only. You still need an air conditioner | Both, and it chooses between them |
| Where the heat comes from | Moved out of the outdoor air using electricity | Burning natural gas or propane | Whichever is cheaper at that outdoor temperature |
| At zero and below | Keeps heating, at reduced output | Full output at any temperature | The furnace takes over |
| What you need at the house | Electric service with capacity for it | A gas line or a propane tank | Both |
| Against propane, oil or electric baseboard | Much cheaper to run | Cheaper than electric resistance, not much else | Cheapest overall |
| Against natural gas | Close, and it turns on your electric rate | Very hard to beat in a deep cold snap | Lower bills across the whole season |
| Combustion inside the house | None. No flue, no heat exchanger, no carbon monoxide | Yes, vented, with a heat exchanger that ages | Yes, on the furnace side |
| Rebates and incentives | Widely available on qualifying equipment | Limited, and only on high-efficiency models | The heat pump side usually qualifies |
| Who it fits | No gas at the house, or you want heating and cooling in one purchase | Gas at the meter and a furnace that is due anyway | Gas at the meter, and you want lower bills through spring and fall |
If your air conditioner and your furnace are both near the end at the same time, that is the moment a heat pump is cheapest to get into. You were going to buy an outdoor unit regardless.
Who it fits
Four houses where a heat pump is an easy recommendation
No natural gas at the house
Propane, fuel oil or electric baseboard. This is the clearest case there is. A cold-climate heat pump typically cuts what you are paying now by a wide margin, and it brings cooling with it.
Get a quote
Your AC is finished but the furnace is fine
You are buying an outdoor unit either way. Spending a bit more to make it a heat pump means your existing furnace becomes the backup and you stop burning gas for eight months of the year.
Get a quote
A room or an addition with no ductwork
A ductless mini split is a heat pump too. Same principle, no ducts, and each head gets its own thermostat. Mitsubishi is the line we carry for that work.
Ductless mini splits
You have heard there is money on the table
There is, on qualifying equipment: a Focus on Energy rebate and whatever Carrier is running that season. They stack, and the amounts change.
How the incentives workStraight answers
Heat pump questions from Wisconsin homeowners
Do heat pumps work in Wisconsin winters?
Yes. Cold-climate heat pumps keep producing heat at well below zero, and they are installed all over Wisconsin now. The caveat worth knowing is that a heat pump's output drops as the outdoor temperature drops, so the system has to be sized against the coldest design conditions here rather than against a nameplate number. In a house with natural gas we usually pair one with the furnace so the furnace covers the handful of genuinely brutal weeks.
What is a cold climate heat pump?
A cold climate heat pump is a heat pump engineered to keep producing useful heat at low outdoor temperatures, using variable-speed inverter compressors and refrigerant injection rather than the single-speed design of older units. The practical difference is the rated capacity at low temperature. An older heat pump gave up somewhere around freezing and handed the job to electric strip heat. A cold-climate unit is still doing real work far below that.
Heat pump vs furnace: which is cheaper to run?
Against propane, fuel oil or electric baseboard, a heat pump is dramatically cheaper. Against natural gas the answer is closer and depends on the ratio of your electric rate to your gas rate, which is why dual fuel exists: it runs the heat pump when the heat pump is cheaper and the furnace when the furnace is cheaper. Across a whole Wisconsin heating season, most of the hours are in the shoulder range where the heat pump wins, which is why the combination usually beats either machine alone.
What is a dual fuel system?
A dual fuel system is a heat pump and a gas furnace installed together on the same ductwork, with a control that switches between them based on outdoor temperature. The heat pump runs through fall, most of the winter and spring. When it gets cold enough that the furnace becomes the cheaper or stronger option, the control hands over. You do not manage it. It is set once at commissioning against your rates and your balance point.
Do I have to get rid of my furnace to install a heat pump?
No, and in a house with natural gas we usually recommend keeping it. If the furnace has years left, the heat pump goes in where the air conditioner was and the furnace becomes the backup stage. That is a dual fuel system, and it is the most common heat pump installation we do in this county. Replacing a healthy furnace to go all-electric rarely pays for itself here.
Will a heat pump cool my house in summer?
Yes. A heat pump is an air conditioner that can also run in reverse, so in cooling mode it is doing exactly what a conventional AC does, generally at higher efficiency because it modulates instead of switching on and off. If your air conditioner is at the end of its life, that is the natural moment to look at a heat pump: you are already buying the outdoor unit.
Do heat pumps qualify for rebates in Wisconsin?
Qualifying heat pumps are eligible for Focus on Energy rebates, and those generally stack with each other and with manufacturer promotions. What qualifies is set by efficiency rating and by the AHRI-certified match between outdoor unit and indoor coil, not by brand alone. Amounts and requirements change from year to year, so we confirm the current numbers in writing when we quote.
Do heat pumps run all the time? And are they loud?
A modern inverter heat pump runs for long stretches at low speed rather than blasting and shutting off, so it can look like it is always on. That is the design, and it is why the temperature stays steady and the equipment lasts. Modern units are quiet, quieter than the air conditioner most people are replacing. The one thing you will notice that a furnace never did is the defrost cycle: in damp cold weather the outdoor unit periodically melts frost off its coil, briefly steams, and goes back to work.
Find out what your balance point is.
Tell us what heats the house now and utility rates, roughly how old it is, and what you pay to run it. That is enough for us to say whether a heat pump, a furnace or both belongs in your house.
Or call us directly
(920) 564-2333Mon–Fri 7am–3pm. After hours, the same number reaches our on-call technician.