Why did December read $212 and January read $398 with nobody touching the thermostat? That question is what sends people looking up heating companies overland park ks in the middle of February, weeks after the cold snap that caused it melted off the driveway. Blaming the weather is the easy answer and it is usually the wrong one. A heat pump that stops carrying the load hands the house over to its electric backup strips, and strip heat costs multiples of what compressor heat costs, so the bill climbs even though nothing about your habits did.
The Bill Doubled While The Thermostat Never Moved
A heat pump does not manufacture heat, it relocates it, and how much it can relocate depends on the temperature outside. At 40 degrees it pulls plenty. Down near five, which Kansas hands us for a few nights most Januaries, the compressor runs out of available heat and the control board energizes a bank of electric resistance coils inside the air handler to cover the shortfall. Those coils are one unit of electricity in, one unit of heat out, with no multiplier at all.
None of that is a malfunction. It is the design doing what the design does, and the only real question is how many hours of a winter your house spends in it.
Strip Heat Costs Several Times What Compressor Heat Costs
The gap is not subtle. Energy Factbook’s August 2026 heating cost comparison puts electric resistance heat at $52.2 per million Btu of delivered heat for the 2025-26 season against $18.7 per million Btu for a heat pump, which makes compressor heat roughly 2.8 times cheaper for identical warmth in the room. Same meter, same house, same setting on the wall. A stretch of strip-heavy nights lands on the statement looking like a billing error, so plenty of people call the utility first, and the case we see most often behind a doubled winter bill is not a rate change at all but a system that quietly stopped doing the efficient half of its job.
Run The Cost Math On One Cold Snap
Take a 1,900 square foot Overland Park house that normally keeps utilities under about $250 a month. Say the delivered rate works out to 13 cents per kilowatt hour, which is an illustrative number for this example and not your exact tariff. The auxiliary bank in a system that size is commonly 10 kilowatts. Run it eight hours through a night with a five degree low and you have burned 80 kilowatt hours, which comes to $10.40 for that one night. Nine nights of that inside a January cold week runs you about $94 in backup heat by itself. Price the same delivered warmth through the compressor at the 2.8 to 1 ratio above and it lands near $34 instead. Sixty dollars of difference, from one component, on a month that had $250 of room for the whole house. Stretch that across the two or three cold weeks a Kansas winter usually produces and you are looking at the entire gap people blame on the weather.
One more thing about that circuit, because it outranks the money. A 10 kilowatt strip bank is a heavy electrical load, and a breaker feeding the air handler or the heat strips that trips repeatedly is a fault to be diagnosed by a licensed professional, not something to keep resetting. The Electrical Safety Foundation International states the rule plainly: repeated breaker trips and heavy reliance on extension cords are signs of too few circuits, an extension cord must never substitute for permanent wiring, and adding a circuit is work for a qualified electrician. Do not bridge the gap with a space heater on an extension cord while you wait for the repair.
Undersized And Untuned Systems Reach For Strips Early
Two things push a system onto its strips earlier than it should. Sizing is the first: a unit chosen a half ton small, or asked to push through ductwork it was never matched to, hits its balance point at 35 degrees instead of 20 and gives up whole evenings to resistance heat. Condition is the second. A dirty outdoor coil, a low refrigerant charge, or a defrost board cycling wrong all shrink capacity quietly, and the control logic compensates the only way it knows how, which is to call for the strips.
Five or six years ago the honest advice around here was that a heat pump would hand off to backup somewhere in the mid thirties and there was not much anyone could do about it. Cold climate variable speed equipment moved that line. A properly commissioned system holds its own into the single digits now, which is why the same complaint that used to be a shrug is worth a service call today.
What Week One And Month Three Look Like
An inspection is not a magic trick, so here is the honest sequence. In the first week after a tune-up you will notice the outdoor unit running longer and the supply air feeling cooler than you remember, and that is the compressor carrying the load instead of the resistance coils behind it. Within 30 days you have one statement to compare, though a single month against a moving weather pattern proves very little on its own. By month three, usually with a February bill in hand, the pattern either holds or it does not, and if it does not, the conversation should shift to a load calculation and replacement sizing rather than another round of repairs.
A Variable Income Needs A Predictable Winter Line
An income that moves month to month does not need a lower average bill nearly as much as it needs a narrower range. A steady $250 you can plan around beats $180 followed by $400. The spreadsheet doesn’t lie, and a wide December to February swing is almost always a mechanical story with a cause somebody can point at, which is the argument for having the heat pump looked at before the first hard freeze instead of during it. When you call around to the heating companies Overland Park KS homeowners keep recommending, ask them to show you the balance point and the strip runtime, not just a price.
