Should Groveland switch to a heat pump?

A heat pump earns back its extra cost in Groveland within a sensible timeframe. $1,000 is what Groveland 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. That premium is recovered through $326 of lower running costs every year, landing the payback clock at roughly 3.1 years. The window here is reasonable, and it's specific to what Groveland actually pays for power and gas.

Groveland's weather, in the numbers that matter

Groveland barely has a winter to speak of — 605 heating degree days a year against a 65°F base — and summers are severe enough that cooling can dominate the annual bill, at 3480 cooling degree days. 36°F is the figure equipment gets sized against here — the 99th-percentile cold snap, not an average day — with a record low of 34°F on file. Worked through the model, that's a seasonal COP of 3.27 on the standard unit fit for this climate. Groveland's winters don't get cold enough to need the cold-climate premium — a standard unit holds up fine. Climate figures trace to the nearest NOAA station, LEESBURG REGIONAL AIRPORT, 12.1 miles from Groveland.

Groveland's running-cost comparison, in dollars

Electricity use for heating alone comes out to about 468 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $530 a year. That compares with roughly 6 Mcf a year of gas at Groveland's 25.48 per-Mcf rate — about $856 a year — against a local electricity rate of 15.43¢/kWh. Looked at as a full purchase rather than an incremental one, payback here is roughly 33.7 years, leaving the 15-year total $3,895 ahead.

Electric resistance heat in Groveland, compared

Plenty of homes in Groveland heat with electricity alone, no gas line involved. Swap the comparison to resistance heat instead of gas, and Groveland's answer improves. The saving here runs about $402 a year, which recovers the extra $5,500 spent going electric in roughly 13.7 years.

Groveland against the rest of the country

Among 3206 cities, Groveland's winter puts it at rank 3029 for severity, while its size puts it at rank 1632 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.

Deciding what's next in Groveland, FL

Groveland, Florida is home to about 24,602 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. Given the math above, Groveland is a place worth lining up quotes ahead of a breakdown, not waiting for one.

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

More on how this number was built

Nothing above is a black box: the methodology guide shows the full arithmetic behind Groveland's 3.27 seasonal COP and payback figure. The $2,000 federal credit baked into Groveland's number is explained, with the before-and-after math, in the tax credit guide.