Should Buda switch to a heat pump?

This one's marginal in Buda: it only clears if you stay long enough. 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. Buda's residents would see roughly $336 a year back in running costs, putting the payback around 10.4 years. It's a genuine toss-up here — Buda's numbers don't point clearly either way.

Buda's weather, in the numbers that matter

1277 heating degree days pile up here every year, so Buda barely has a winter to speak of; the cooling side runs to 3371 cooling degree days, where summers are severe enough that cooling can dominate the annual bill. 21°F is the figure equipment gets sized against here — the 99th-percentile cold snap, not an average day — with a record low of 10.9°F on file. Worked through the model, that's a seasonal COP of 3.2 on the cold-climate unit fit for this climate. Buda 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, AUSTIN-BERGSTROM INTL AIRPORT, 12.7 miles from Buda.

The month-to-month numbers for Buda

Electricity use for heating alone comes out to about 1,010 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $627 a year. That compares with roughly 13 Mcf a year of gas at Buda's 19.42 per-Mcf rate — about $964 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 40.1 years, leaving the 15-year total $1,547 ahead.

The other scenario: no gas furnace to begin with

Not every home in Buda has gas service. Against electric-resistance heat — baseboard or an electric furnace, both 100% efficient but still just resistance — the case for switching gets stronger here. About $600 a year comes back this way, enough that the 13.3-year payback clears the $8,000 premium comfortably within the equipment's life.

Buda against the rest of the country

Buda lands at position 2766 out of 3206 cities on heating severity (coldest is 1), and 2286 out of 3206 by population size (biggest is 1). That's the mildest third of cities covered, where utility rates carry more of the answer than climate does.

Next step for 16,090 people in Buda

Buda, Texas is home to about 16,090 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 Buda, nothing is lost by holding off until the current equipment genuinely fails.

Ask a local HVAC contractor for a quote before committing either way.

More on how this number was built

The methodology guide walks through exactly how Buda's 3.2 seasonal COP and the rest of this page's numbers get built. At a 21°F design temperature, Buda sits in cold-climate territory; the guide to that class of unit explains why.