North Salt Lake, UT: the heat pump payback math
The payback math works in North Salt Lake on paper, past the equipment's own working life. Swap a failed furnace and AC for a heat pump rather than buying like-for-like, and the extra cost here runs $3,500 after a $2,000 federal tax credit. That premium is recovered through $110 of lower running costs every year, landing the payback clock at roughly 31.9 years. North Salt Lake's own numbers say this pencils out only in theory, not in practice.
Why North Salt Lake's climate drives this number
4667 heating degree days pile up here every year, so North Salt Lake has a real but manageable winter; the cooling side runs to 1804 cooling degree days, where summers are hot enough that cooling matters as much as heating. The 99% winter design temperature here — the cold snap equipment must be sized for, not the seasonal average — is 19°F, against a record low of 12.2°F. That puts the seasonal coefficient of performance at 3.16 for the recommended cold-climate unit. North Salt Lake needs the cold-climate class of unit: past a 25°F design temperature a standard heat pump falls back on resistance backup often enough to eat the savings. These numbers come from SALT LAKE CITY INTERNATIONAL, the closest NOAA station, 5.4 miles out.
The month-to-month numbers for North Salt Lake
Electricity use for heating alone comes out to about 3,740 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $692 a year. North Salt Lake's gas rate of 10.19 per Mcf, applied to the 49 Mcf a year the furnace burns, puts its running cost near $802 a year, against 13.12¢ per kWh for electricity. Priced as a standalone purchase rather than against a like-for-like replacement, equipment payback runs about 123.2 years, for a 15-year net position $1,856 behind.
Electric resistance heat in North Salt Lake, compared
Gas isn't universal in North Salt Lake — many houses run on electric heat already. Swap the comparison to resistance heat instead of gas, and North Salt Lake's answer improves. About $1,165 a year comes back this way, enough that the 6.9-year payback clears the $8,000 premium comfortably within the equipment's life.
North Salt Lake against the rest of the country
North Salt Lake lands at position 1037 out of 3206 cities on heating severity (coldest is 1), and 1680 out of 3206 by population size (biggest is 1). That's the coldest third of the dataset, where climate does most of the work behind this figure.
What to do with this number in North Salt Lake
About 23,593 people live in North Salt Lake, Utah, and every number on this page is what a contractor would actually work from when quoting a system here — the point isn't to replace that quote, it's to tell you whether to bother asking for one. Here, there's no cost penalty to waiting until your current furnace or AC actually needs replacing.
Line up a few local HVAC quotes before you decide.
More on how this number was built
The methodology guide walks through exactly how North Salt Lake's 3.16 seasonal COP and the rest of this page's numbers get built. At a 19°F design temperature, North Salt Lake sits in cold-climate territory; the guide to that class of unit explains why.