Heat Pump Payback in Sherwood, OR
Heat pump vs. gas furnace in Sherwood, OR
Sherwood technically pencils out, but only past the point the equipment would need replacing anyway. Against a like-for-like gas furnace and AC swap, going electric costs $5,500 more up front here. Lower bills claw that back: about $256 saved annually, for a payback of roughly 21.5 years. That's a technicality, not a recommendation, for anyone actually living in Sherwood.
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Sherwood's weather, in the numbers that matter
Degree days tell the story here: Sherwood racks up 4286 heating degree days each year (base 65°F), and summers add a moderate cooling load, with 518 cooling degree days on the cooling side. Sizing runs off the design temperature, not the average day: 18°F here (coldest 2024 reading 16°F), which works out to a seasonal COP of 3.13 for the cold-climate class of unit this climate calls for. A cold-climate unit is the right call in Sherwood, below 25°F design temperature, a standard heat pump leans hard on electric-resistance backup, which erases most of the savings. Source: NOAA station Aurora State Airport, 8.4 miles from Sherwood, the closest one on record.
The yearly running costs in Sherwood
A 2000-square-foot house here would pull roughly 3,467 heating kilowatt-hours annually on top of cooling, totalling about $592 a year on electricity. That compares with roughly 45 Mcf a year of gas at Sherwood's $16.71 per-Mcf rate, about $848 a year with the old AC included, against a local electricity rate of 15.14¢/kWh. Priced as a standalone purchase, with a working furnace ripped out early, payback would take longer than the 15-year equipment life. Measured against the like-for-like replacement instead, a household here ends 15 years $1,664 behind.
What would change Sherwood's answer
Gas would only overtake the heat pump in Sherwood if electricity rose past 23.0¢/kWh from 15.14¢, or gas fell under $10.98 per Mcf from $16.71. A useful quote test for Sherwood: the heat pump is worth it within a decade if it costs less than $2,560 more than replacing the furnace and AC, and within 7 years if the gap is under $1,792.
If your home heats with electric baseboard instead of gas
Not every home in Sherwood has gas service. Compared with baseboard or electric-furnace resistance heat, the numbers shift in the heat pump’s favor. The saving here runs about $1,153 a year, which recovers the extra $10,000 spent going electric in roughly 8.7 years.
Sherwood against the rest of the country
Ranked against the other 3206 cities covered, Sherwood comes in at 1340 for heating severity, 1 would be the coldest place in the dataset, and 1885 by population, where 1 is largest. That's the middle third for winter severity among the cities covered here.
Next step if you live in Sherwood
Sherwood, Oregon is home to about 20,441 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 Sherwood, 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 Sherwood's 3.13 seasonal COP and the rest of this page's numbers get built. At a 18°F design temperature, Sherwood sits in cold-climate territory; the guide to that class of unit explains why.