Joplin, MO: the heat pump payback math
The payback math works in Joplin 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. Lower bills claw that back: about $232 saved annually, for a payback of roughly 15.1 years. That's a technicality, not a recommendation, for anyone actually living in Joplin.
How cold Joplin actually gets
Degree days tell the story here: Joplin racks up 3249 heating degree days each year (base 65°F), and summers are hot enough that cooling matters as much as heating, with 1898 cooling degree days on the cooling side. 3°F is the figure equipment gets sized against here — the 99th-percentile cold snap, not an average day — with a record low of -7.1°F on file. Worked through the model, that's a seasonal COP of 2.77 on the cold-climate unit fit for this climate. Joplin 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. Climate figures trace to the nearest NOAA station, JOPLIN REGIONAL AIRPORT, 5.3 miles from Joplin.
What it actually costs to run, year to year
Modelled on a typical 2000-square-foot house, the heat pump draws about 2,970 kWh a year to keep it warm, plus cooling, for a combined electric bill near $589 a year. Joplin's gas rate of 14.94 per Mcf, applied to the 34 Mcf a year the furnace burns, puts its running cost near $821 a year, against 12.83¢ per kWh for electricity. Buy it outright, not incrementally, and payback stretches to 58.1 years; over 15 years the net position sits $13 behind.
The other scenario: no gas furnace to begin with
Plenty of homes in Joplin heat with electricity alone, no gas line involved. 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 $782 a year, which recovers the extra $8,000 spent going electric in roughly 10.2 years.
How Joplin compares nationally
Joplin lands at position 1834 out of 3206 cities on heating severity (coldest is 1), and 757 out of 3206 by population size (biggest is 1). That's the middle third for winter severity among the cities covered here.
Next step for 53,605 people in Joplin
Joplin, Missouri is home to about 53,605 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 Joplin, nothing is lost by holding off until the current equipment genuinely fails.
Get quotes from local HVAC contractors before deciding.
More on how this number was built
The methodology guide walks through exactly how Joplin's 2.77 seasonal COP and the rest of this page's numbers get built. Joplin's 3°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.