Heat Pump Payback in Portland, TX
Heat pump vs. gas furnace in Portland, TX
Portland sits right on the fence, how long you'll own the house decides this one. $3,000 is what Portland would pay extra to go electric rather than replace the furnace and AC with the same again. That premium is recovered through $340 of lower running costs every year, landing the payback clock at roughly 8.8 years. It's a genuine toss-up here, Portland's numbers don't point clearly either way.
Compare against another city
Portland is one of 3206 cities covered here, each run through the same model. Search another below.
Portland's weather, in the numbers that matter
Portland barely has a winter to speak of, 519 heating degree days a year against a 65°F base, and summers are severe enough that cooling can dominate the annual bill, at 4215 cooling degree days. The 99% winter design temperature here, the cold snap equipment must be sized for, not the seasonal average, is 33.1°F, and the coldest daily reading in the 2024 station record was 24.1°F. That puts the seasonal coefficient of performance at 3.19 for the recommended standard unit. Portland's winters don't get cold enough to need the cold-climate premium, a standard unit holds up fine. Source: NOAA station Corpus Christi International, 13.6 miles from Portland, the closest one on record.
Portland's running-cost comparison, in dollars
Electricity use for heating alone comes out to about 412 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $647 a year. Portland's gas rate of $19.42 per Mcf, applied to the 5 Mcf a year the furnace burns, puts the current furnace-and-AC running cost near $987 a year, against 16.15¢ per kWh for electricity. If the current system still worked and you replaced it anyway, the full cost would take longer than the 15-year equipment life to earn back; against buying a new furnace and AC regardless, the 15-year total lands $2,104 ahead.
How sensitive Portland's result is to prices
In Portland the cooling savings outweigh the extra electricity for heating, so no plausible change in the electricity rate would make the old furnace and AC cheaper to run. A useful quote test for Portland: the heat pump is worth it within a decade if it costs less than $3,400 more than replacing the furnace and AC, and within 7 years if the gap is under $2,380.
Electric resistance heat in Portland, compared
Gas isn't universal in Portland, many houses run on electric heat already. Swap the comparison to resistance heat instead of gas, and Portland's answer improves. The gap still doesn't close: the $7,500 incremental cost outlasts the 15-year equipment life here even against resistance heat.
Portland against the rest of the country
Ranked against the other 3206 cities covered, Portland comes in at 3046 for heating severity, 1 would be the coldest place in the dataset, and 1864 by population, where 1 is largest. That's the mildest third of cities covered, where utility rates carry more of the answer than climate does.
Deciding what's next in Portland, TX
Portland, Texas is home to about 20,725 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 Portland, nothing is lost by holding off until the current equipment genuinely fails.
Line up a few local HVAC quotes before you decide.
Where Portland's figure comes from
Every constant behind this page, the 3.19 seasonal COP, the degree-day corrections, the equipment costs, is documented in the methodology guide. Homes in Portland without gas service should read the electric-resistance comparison instead, the numbers there differ from the gas case above.