Will a heat pump pay off in Rolla, MO?
In Rolla, the extra upfront cost technically comes back, just not before the equipment wears out. 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. Rolla's residents would see roughly $206 a year back in running costs, putting the payback around 17 years. That's a technicality, not a recommendation, for anyone actually living in Rolla.
How cold Rolla actually gets
Degree days tell the story here: Rolla racks up 3857 heating degree days each year (base 65°F), and summers are hot enough that cooling matters as much as heating, with 1291 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 -0.9°F, against a record low of -7.1°F. That puts the seasonal coefficient of performance at 2.68 for the recommended cold-climate unit. Below the 25°F line where a standard machine starts leaning on resistance backup, Rolla sits firmly in cold-climate territory, so that's the class of unit priced here. Source: NOAA station ROLLA NATIONAL AIRPORT, 12.9 miles from Rolla — the closest one on record.
What it actually costs to run, year to year
Modelled on a typical 2000-square-foot house, the heat pump draws about 3,644 kWh a year to keep it warm, plus cooling, for a combined electric bill near $609 a year. That compares with roughly 40 Mcf a year of gas at Rolla's 14.94 per-Mcf rate — about $815 a year — against a local electricity rate of 12.83¢/kWh. Priced as a standalone purchase rather than against a like-for-like replacement, equipment payback runs about 65.5 years, for a 15-year net position $410 behind.
If your home heats with electric baseboard instead of gas
Plenty of homes in Rolla heat with electricity alone, no gas line involved. Swap the comparison to resistance heat instead of gas, and Rolla's answer improves. Switching saves about $859 a year here — a heat pump moving heat rather than generating it needs far less electricity than resistance coils — so the extra $8,000 spent up front comes back in about 9.3 years.
Rolla against the rest of the country
Among 3206 cities, Rolla's winter puts it at rank 1611 for severity, while its size puts it at rank 1871 for population — 1 in both cases being the extreme. That's the middle third for winter severity among the cities covered here.
Next step for 20,660 people in Rolla
Rolla, Missouri is home to about 20,660 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 Rolla, nothing is lost by holding off until the current equipment genuinely fails.
Ask a local HVAC contractor for a quote before committing either way.
Reading further on this page's numbers
Nothing above is a black box: the methodology guide shows the full arithmetic behind Rolla's 2.68 seasonal COP and payback figure. Rolla's -0.9°F design temperature is below the 25°F line, which is why a cold-climate unit is the right call here — see what that changes in the cold-climate unit guide.