Heat pump vs. gas furnace in Doral, FL

Doral is a clear case: a heat pump beats what you have by a wide margin. Against a like-for-like gas furnace and AC swap, going electric costs $1,000 more up front here (already netting out a $2,000 tax credit). Lower bills claw that back: about $339 saved annually, for a payback of roughly 3 years. That verdict holds specifically for Doral's own climate and rates, not a national average.

How cold Doral actually gets

Doral barely has a winter to speak of — 41 heating degree days a year against a 65°F base — and summers are severe enough that cooling can dominate the annual bill, at 4858 cooling degree days. The 99% winter design temperature here — the cold snap equipment must be sized for, not the seasonal average — is 52°F, against a record low of 52°F. That puts the seasonal coefficient of performance at 3.75 for the recommended standard unit. Doral's winters don't get cold enough to need the cold-climate premium — a standard unit holds up fine. Source: NOAA station MIAMI INTERNATIONAL AIRPORT, 3.2 miles from Doral — the closest one on record.

What it actually costs to run, year to year

Electricity use for heating alone comes out to about 28 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $643 a year. That compares with roughly 0 Mcf a year of gas at Doral's 25.48 per-Mcf rate — about $982 a year — against a local electricity rate of 15.43¢/kWh. Priced as a standalone purchase rather than against a like-for-like replacement, equipment payback runs about 32.5 years, for a 15-year net position $4,084 ahead.

If your home heats with electric baseboard instead of gas

Not every home in Doral has gas service. Swap the comparison to resistance heat instead of gas, and Doral's answer improves. Switching saves about $344 a year here — a heat pump moving heat rather than generating it needs far less electricity than resistance coils — so the extra $5,500 spent up front comes back in about 16 years.

Where Doral ranks in this dataset

Ranked against the other 3206 cities covered, Doral comes in at 3192 for heating severity — 1 would be the coldest place in the dataset — and 438 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.

What to do with this number in Doral

Doral, Florida is home to about 83,625 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, Doral is a place worth lining up quotes ahead of a breakdown, not waiting for one.

Line up a few local HVAC quotes before you decide.

Where Doral's figure comes from

The methodology guide walks through exactly how Doral's 3.75 seasonal COP and the rest of this page's numbers get built. The $2,000 federal credit baked into Doral's number is explained, with the before-and-after math, in the tax credit guide.