Should Anna switch to a heat pump?
Anna sits right on the fence — how long you'll own the house decides this one. $3,500 is what Anna would pay extra to go electric rather than replace the furnace and AC with the same again, once the $2,000 federal credit is applied. Anna's residents would see roughly $341 a year back in running costs, putting the payback around 10.3 years. It's a genuine toss-up here — Anna's numbers don't point clearly either way.
Anna's weather, in the numbers that matter
Degree days tell the story here: Anna racks up 1985 heating degree days each year (base 65°F), and summers are severe enough that cooling can dominate the annual bill, with 2940 cooling degree days on the cooling side. 12°F is the figure equipment gets sized against here — the 99th-percentile cold snap, not an average day — with a record low of 9°F on file. Worked through the model, that's a seasonal COP of 2.99 on the cold-climate unit fit for this climate. Anna 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. Source: NOAA station MCKINNEY MUNICIPAL ARPT, 11.1 miles from Anna — the closest one on record.
Anna's running-cost comparison, in dollars
A 2000-square-foot house here would pull roughly 1,681 heating kilowatt-hours annually on top of cooling, totalling about $676 a year on electricity. That compares with roughly 21 Mcf a year of gas at Anna's 19.42 per-Mcf rate — about $1,017 a year — against a local electricity rate of 16.15¢/kWh. Looked at as a full purchase rather than an incremental one, payback here is roughly 39.6 years, leaving the 15-year total $1,608 ahead.
The other scenario: no gas furnace to begin with
Plenty of homes in Anna 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. Switching saves about $751 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 10.7 years.
Anna against the rest of the country
Among 3206 cities, Anna's winter puts it at rank 2433 for severity, while its size puts it at rank 1280 for population — 1 in both cases being the extreme. That's the mildest third of cities covered, where utility rates carry more of the answer than climate does.
What to do with this number in Anna
Anna, Texas is home to about 31,986 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 Anna, nothing is lost by holding off until the current equipment genuinely fails.
Get quotes from local HVAC contractors before deciding.
Where Anna's figure comes from
The methodology guide walks through exactly how Anna's 2.99 seasonal COP and the rest of this page's numbers get built. Anna's 12°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.