Will a heat pump pay off in Miami Shores, FL?
The math in Miami Shores isn't close — a heat pump wins outright. $1,000 is what Miami Shores 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 $335 of lower running costs every year, landing the payback clock at roughly 3 years. That verdict holds specifically for Miami Shores's own climate and rates, not a national average.
Miami Shores's weather, in the numbers that matter
Degree days tell the story here: Miami Shores racks up 60 heating degree days each year (base 65°F), and summers are severe enough that cooling can dominate the annual bill, with 4759 cooling degree days on the cooling side. 51.1°F is the figure equipment gets sized against here — the 99th-percentile cold snap, not an average day — with a record low of 48.9°F on file. Worked through the model, that's a seasonal COP of 3.72 on the standard unit fit for this climate. Miami Shores's winters don't get cold enough to need the cold-climate premium — a standard unit holds up fine. Source: NOAA station OPA LOCKA AIRPORT, 6.9 miles from Miami Shores — the closest one on record.
Miami Shores's running-cost comparison, in dollars
Modelled on a typical 2000-square-foot house, the heat pump draws about 41 kWh a year to keep it warm, plus cooling, for a combined electric bill near $632 a year. The gas furnace it replaces burns roughly 1 Mcf a year at 25.48 per Mcf here, for a running cost near $968 a year (electricity here runs 15.43¢/kWh). Priced as a standalone purchase rather than against a like-for-like replacement, equipment payback runs about 32.8 years, for a 15-year net position $4,028 ahead.
Electric resistance heat in Miami Shores, compared
Gas isn't universal in Miami Shores — many houses run on electric heat already. Swap the comparison to resistance heat instead of gas, and Miami Shores's answer improves. The saving here runs about $343 a year, which recovers the extra $5,500 spent going electric in roughly 16 years.
Where Miami Shores ranks in this dataset
Ranked against the other 3206 cities covered, Miami Shores comes in at 3171 for heating severity — 1 would be the coldest place in the dataset — and 2817 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 Miami Shores
Miami Shores, Florida is home to about 11,917 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, Miami Shores 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.
More on how this number was built
The methodology guide walks through exactly how Miami Shores's 3.72 seasonal COP and the rest of this page's numbers get built. The $2,000 federal credit baked into Miami Shores's number is explained, with the before-and-after math, in the tax credit guide.