Should Marina switch to a heat pump?
Marina is a place where a heat pump genuinely costs more to operate than the alternative. 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). The heat pump would cost about $222 more a year to run than the furnace it replaces — a premium with no payback. That's Marina's own climate and rates talking, not a hedge or a caveat.
Marina's weather, in the numbers that matter
5113 heating degree days pile up here every year, so Marina has a cold winter that leans hard on heating equipment; the cooling side runs to 0 cooling degree days, where summers rarely ask much of an air conditioner. The 99% winter design temperature here — the cold snap equipment must be sized for, not the seasonal average — is 28.4°F, against a record low of 5°F. That puts the seasonal coefficient of performance at 3.05 for the recommended standard unit. Marina'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, MARINA MUNI, 1.5 miles from Marina.
The month-to-month numbers for Marina
A 2000-square-foot house here would pull roughly 4,245 heating kilowatt-hours annually, roughly $1,394 a year in electricity. The gas furnace it replaces burns roughly 53 Mcf a year at 22.01 per Mcf here, for a running cost near $1,172 a year (electricity here runs 32.83¢/kWh). Buy it outright, not incrementally, and payback stretches to beyond the 15-year equipment life; over 15 years the net position sits $4,323 behind.
Electric resistance heat in Marina, compared
Plenty of homes in Marina heat with electricity alone, no gas line involved. Swap the comparison to resistance heat instead of gas, and Marina's answer improves. About $2,857 a year comes back this way, enough that the 1.9-year payback clears the $5,500 premium comfortably within the equipment's life.
How Marina compares nationally
Ranked against the other 3206 cities covered, Marina comes in at 594 for heating severity — 1 would be the coldest place in the dataset — and 1713 by population, where 1 is largest. That's the coldest third of the dataset, where climate does most of the work behind this figure.
What to do with this number in Marina
Marina, California is home to about 23,047 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 Marina, nothing is lost by holding off until the current equipment genuinely fails.
Ask a local HVAC contractor for a quote before committing either way.
Reading further on this page's numbers
Nothing above is a black box: the methodology guide shows the full arithmetic behind Marina's 3.05 seasonal COP and payback figure. Marina is one of the cities where running costs land higher every year, not just slower to pay back — the guide to where this happens lays out why.