Heat Pump Payback in Waverly, IA
Should Waverly switch to a heat pump?
Here in Waverly, the honest answer is that a heat pump raises your annual running cost. Swap a failed furnace and AC for a heat pump rather than buying like-for-like, and the extra cost here runs $5,500. Running costs here land $110 a year higher than the furnace it replaces, so that premium is never recovered. That's Waverly's own climate and rates talking, not a hedge or a caveat.
Compare against another city
This runs the same numbers for 3206 US cities, not just Waverly. Look one up here.
Waverly's weather, in the numbers that matter
Waverly has a cold winter that leans hard on heating equipment, 5493 heating degree days a year against a 65°F base, and summers add a moderate cooling load, at 982 cooling degree days. The 99% winter design temperature here, the cold snap equipment must be sized for, not the seasonal average, is -13°F, and the coldest daily reading in the 2024 station record was -15°F. That puts the seasonal coefficient of performance at 2.39 for the recommended cold-climate unit. A cold-climate unit is the right call in Waverly, below 25°F design temperature, a standard heat pump leans hard on electric-resistance backup, which erases most of the savings. These numbers come from Waterloo Municipal Airport, the closest NOAA station, 12.1 miles out.
The yearly running costs in Waverly
Electricity use for heating alone comes out to about 5,820 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $886 a year. That compares with roughly 57 Mcf a year of gas at Waverly's $10.61 per-Mcf rate, about $776 a year with the old AC included, against a local electricity rate of 13.31¢/kWh. Because the heat pump costs more to run here, the gap only widens with time: $7,145 behind after 15 years compared with replacing the furnace and AC like-for-like.
How sensitive Waverly's result is to prices
For the verdict in Waverly to flip, electricity would need to drop to about 11.3¢/kWh from 13.31¢, or gas climb past $12.53 per Mcf from $10.61. A utility offering a lower heat pump rate can change this. Until then, no quote price makes a heat pump pay back against gas in Waverly; the case for one here rests on comfort, cooling, or replacing electric heat instead.
If your home heats with electric baseboard instead of gas
Plenty of homes in Waverly heat with electricity alone, no gas line involved. Swap the comparison to resistance heat instead of gas, and Waverly's answer improves. About $1,135 a year comes back this way, enough that the 8.8-year payback clears the $10,000 premium comfortably within the equipment's life.
Waverly against the rest of the country
Waverly lands at position 384 out of 3206 cities on heating severity (coldest is 1), and 3074 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.
Next step if you live in Waverly
Waverly, Iowa is home to about 10,576 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 Waverly, 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 Waverly's 2.39 seasonal COP and the rest of this page's numbers get built. At a -13°F design temperature, Waverly sits in cold-climate territory; the guide to that class of unit explains why.