Is a heat pump worth it in Lighthouse Point?
In Lighthouse Point, a heat pump is the cheaper choice, and not by a little. $1,000 is what Lighthouse Point 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. Lower bills claw that back: about $340 saved annually, for a payback of roughly 2.9 years. Nothing about that conclusion is generic — it's built entirely from Lighthouse Point's own numbers.
The climate behind Lighthouse Point's payback figure
Degree days tell the story here: Lighthouse Point racks up 55 heating degree days each year (base 65°F), and summers are severe enough that cooling can dominate the annual bill, with 4842 cooling degree days on the cooling side. Sizing runs off the design temperature, not the average day: 52°F here (record low 48.9°F), which works out to a seasonal COP of 3.75 for the standard class of unit this climate calls for. A standard ducted system is enough here; Lighthouse Point's design temperature doesn't justify the cold-climate premium. These numbers come from POMPANO BEACH AIRPARK ARPT, the closest NOAA station, 2.3 miles out.
What it actually costs to run, year to year
Modelled on a typical 2000-square-foot house, the heat pump draws about 37 kWh a year to keep it warm, plus cooling, for a combined electric bill near $643 a year. Lighthouse Point's gas rate of 25.48 per Mcf, applied to the 1 Mcf a year the furnace burns, puts its running cost near $983 a year, against 15.43¢ per kWh for electricity. Looked at as a full purchase rather than an incremental one, payback here is roughly 32.3 years, leaving the 15-year total $4,102 ahead.
Electric resistance heat in Lighthouse Point, compared
Plenty of homes in Lighthouse Point heat with electricity alone, no gas line involved. Compared with baseboard or electric-furnace resistance heat, the numbers shift in the heat pump’s favor. Switching saves about $347 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 15.8 years.
Lighthouse Point against the rest of the country
Among 3206 cities, Lighthouse Point's winter puts it at rank 3178 for severity, while its size puts it at rank 3010 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 Lighthouse Point
About 10,878 people live in Lighthouse Point, Florida, and every number on this page is what a contractor would actually work from when quoting a system here — the point isn't to replace that quote, it's to tell you whether to bother asking for one. Here, it's worth getting quotes before your current system fails, not after.
Line up a few local HVAC quotes before you decide.
More on how this number was built
The methodology guide walks through exactly how Lighthouse Point's 3.75 seasonal COP and the rest of this page's numbers get built. See what Lighthouse Point's figure looks like without the $2,000 federal credit in the guide to how that credit moves the payback window.