HeatPumpPayback

Should Sandy switch to a heat pump?

The payback math works in Sandy on paper, past the equipment's own working life. Against a like-for-like gas furnace and AC swap, going electric costs $3,500 more up front here (already netting out a $2,000 tax credit). Sandy's residents would see roughly $110 a year back in running costs, putting the payback around 31.9 years. That's a technicality, not a recommendation, for anyone actually living in Sandy.

How cold Sandy actually gets

Degree days tell the story here: Sandy racks up 4667 heating degree days each year (base 65°F), and summers are hot enough that cooling matters as much as heating, with 1804 cooling degree days on the cooling side. 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. Below the 25°F line where a standard machine starts leaning on resistance backup, Sandy sits firmly in cold-climate territory, so that's the class of unit priced here. Source: NOAA station SALT LAKE CITY INTERNATIONAL, 15.6 miles from Sandy — the closest one on record.

What it actually costs to run, year to year

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. The gas furnace it replaces burns roughly 49 Mcf a year at 10.19 per Mcf here, for a running cost near $802 a year (electricity here runs 13.12¢/kWh). 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.

The other scenario: no gas furnace to begin with

Gas isn't universal in Sandy — many houses run on electric heat already. Against electric-resistance heat — baseboard or an electric furnace, both 100% efficient but still just resistance — the case for switching gets stronger here. The saving here runs about $1,165 a year, which recovers the extra $8,000 spent going electric in roughly 6.9 years.

How Sandy compares nationally

Ranked against the other 3206 cities covered, Sandy comes in at 1023 for heating severity — 1 would be the coldest place in the dataset — and 378 by population, where 1 is largest. That's the coldest third of the dataset, where climate does most of the work behind this figure.

Next step for 92,840 people in Sandy

Sandy, Utah is home to about 92,840 people, and the figures above are the same ones a local HVAC contractor uses to size and quote a system — this site doesn't guess where a real quote would land, it just tells you whether it's worth asking for one. In Sandy, nothing is lost by holding off until the current equipment genuinely fails.

Get quotes from local HVAC contractors before deciding.

Reading further on this page's numbers

Nothing above is a black box: the methodology guide shows the full arithmetic behind Sandy's 3.16 seasonal COP and payback figure. At a 19°F design temperature, Sandy sits in cold-climate territory; the guide to that class of unit explains why.