Heat pumps are the single most misunderstood piece of equipment we talk about with homeowners. In one week we will hear that they do not work in winter, that they are only for mild climates, and that they will double an electric bill — often from people who already have one running quietly in their backyard.
We install and repair heating and cooling systems across Pasco, Richland, Kennewick, Prosser, Yakima and the surrounding Eastern Washington communities. Below are the misconceptions we correct most often, and what we actually see in local homes with our own hands on the equipment.
Myth 1: "Heat pumps do not work when it gets cold"
This one comes from 1980s equipment. Older heat pumps lost most of their capacity near freezing, so the electric backup heat carried the house and bills spiked. Modern inverter-driven and cold-climate heat pumps are a different machine: they modulate compressor speed and keep producing usable heat well below freezing, which covers the overwhelming majority of hours in a Tri-Cities winter.
Our winters do dip into single digits during cold snaps. That does not mean a heat pump fails — it means the system needs a properly configured backup stage for those hours. A correctly set up heat pump handles the mild-to-moderate cold on its own and leans on backup heat only during the extremes.
- Most winter hours here sit in the range where a modern heat pump is at its most efficient.
- Backup heat (electric strips or a gas furnace in a dual-fuel setup) covers the coldest days.
- Poor cold-weather performance is usually a controls or sizing problem, not a heat pump problem.
Myth 2: "A heat pump will wreck my electric bill"
A heat pump moves heat instead of creating it, so it delivers more heat energy than the electrical energy it consumes. Compared with straight electric furnaces or baseboard heat, that is a large reduction in winter usage. Homeowners who see high bills after installation almost always have one of three things going on: backup heat running when it should not, a thermostat configured for the wrong equipment type, or an undersized/oversized system fighting the house.
The other detail people forget is that a heat pump is also your air conditioner. You are not paying for two systems — one piece of equipment covers both seasons, which matters a lot during our 100-degree July and August stretches.
- Emergency or auxiliary heat locked on is the number one cause of surprise winter bills.
- A heat pump replaces both the furnace and the AC, so summer efficiency counts too.
- Duct leakage and attic insulation affect the bill more than the brand on the equipment.
Myth 3: "The air feels cold, so it is broken"
A gas furnace blasts air near 120-140°F in short bursts. A heat pump delivers a steadier stream closer to 90-100°F, which can feel cool against your skin even though it is warmer than room temperature and is heating the house. That difference is comfort behavior, not a defect.
The steady, longer run cycles are actually why homes with heat pumps tend to hold a more even temperature room to room, with fewer hot-and-cold swings than a furnace that cycles hard on and off.
Myth 4: "Steam coming off the outdoor unit means something is wrong"
In cold weather the outdoor coil collects frost, and the system periodically runs a defrost cycle to melt it. You will see vapor rising off the unit and hear the sound change for a few minutes. That is normal, designed behavior.
What is not normal: a unit encased in solid ice for hours, defrost running constantly, or ice building up on the top of the cabinet. Those point to a stuck reversing valve, a failed defrost sensor, low refrigerant charge or restricted airflow — worth a service call before it turns into compressor damage.
Myth 5: "Bigger is better"
Oversizing is the most expensive mistake in residential HVAC. An oversized system satisfies the thermostat quickly, shuts off, and never runs long enough to dehumidify or to move air evenly through the house. You get short cycling, uneven rooms, more wear on the compressor and a higher price tag for worse comfort.
Correct sizing comes from a load calculation on your actual home — square footage, insulation, window area and orientation, duct condition, ceiling heights. A 1970s Pasco ranch with original windows and a newer Richland build with tight construction do not get the same equipment, even at identical square footage.
- Ask for a load calculation, not a rule-of-thumb tonnage guess.
- Ductwork often needs attention when replacing older equipment.
- Right-sized systems run longer, quieter cycles and last longer.
Myth 6: "Heat pumps are loud"
Single-stage units from decades ago were loud because they only had one speed: full blast. Current variable-speed equipment spends most of its life at low speed, which is dramatically quieter — often quiet enough that homeowners are surprised the system is running at all when they stand next to it.
Noise complaints we get called out for are usually installation-related: a unit set on an unlevel pad, hard-mounted line sets transmitting vibration into the wall framing, or undersized return ducts making the indoor blower roar.
Myth 7: "You still need a full furnace as backup"
Sometimes a dual-fuel setup is the right answer, and we install plenty of them: heat pump for most of the season, gas furnace for the coldest hours. But it is not automatic. Homes with no gas service, or with a furnace already at end of life, are often better served by a cold-climate heat pump with electric backup.
The right call depends on your fuel costs, existing equipment condition, ductwork and how cold your specific location gets. Prosser and Yakima properties can see colder mornings than a Kennewick neighborhood a short drive away, and we account for that.
What actually determines whether you are happy with a heat pump
After years of service calls, the pattern is consistent: the equipment brand matters far less than the sizing, the duct system, the refrigerant charge and the thermostat configuration. A mid-tier heat pump installed correctly outperforms a premium system installed carelessly every single time.
That is where we spend our time — measuring the house, checking the ducts, commissioning the system properly and showing you how the thermostat should be set so backup heat is not quietly running all winter.
Heat pump questions we get asked
- Do heat pumps work in Eastern Washington winters?
- Yes. Modern heat pumps produce usable heat well below freezing and cover the majority of winter hours in the Tri-Cities on their own, with backup heat handling the coldest snaps. Proper sizing and thermostat setup are what make the difference.
- Will a heat pump raise my electric bill?
- It typically lowers heating costs compared with electric furnaces or baseboard heat, because a heat pump moves heat rather than generating it. High bills after install are usually caused by backup heat running unnecessarily, an incorrect thermostat configuration, or a poorly sized system.
- Why does the air from my heat pump feel cooler than my old furnace?
- Heat pumps deliver a steady stream of air around 90-100°F instead of short bursts of 120-140°F air. It can feel cool on your skin while still heating the home, and the longer cycles usually produce more even temperatures room to room.
- Is steam coming off my outdoor unit a problem?
- Vapor during a defrost cycle in cold weather is normal. Solid ice covering the unit for hours, constant defrost cycling, or ice on top of the cabinet is not — that should be diagnosed before it damages the compressor.
- How do I know what size heat pump my home needs?
- It should come from a load calculation on your specific home — insulation, windows, orientation, duct condition and ceiling heights — not a square-footage rule of thumb. Oversized systems short cycle, feel uneven and wear out faster.
Talk to a real tech
Thinking about a heat pump, or trying to figure out why your current one is running up your bill? We offer free estimates across Pasco, Richland, Kennewick, Prosser, Yakima and Eastern Washington.