Heat pump vs. gas furnace in Lansdowne, PA
The payback math works in Lansdowne on paper, past the equipment's own working life. Against a like-for-like gas furnace and AC swap, going electric costs $3,500 more up front here (already netting out a $2,000 tax credit). That premium is recovered through $80 of lower running costs every year, landing the payback clock at roughly 43.6 years. That's a technicality, not a recommendation, for anyone actually living in Lansdowne.
How cold Lansdowne actually gets
Degree days tell the story here: Lansdowne racks up 3829 heating degree days each year (base 65°F), and summers are hot enough that cooling matters as much as heating, with 1547 cooling degree days on the cooling side. Sizing runs off the design temperature, not the average day: 14°F here (record low 10.9°F), which works out to a seasonal COP of 3.04 for the cold-climate class of unit this climate calls for. Below the 25°F line where a standard machine starts leaning on resistance backup, Lansdowne sits firmly in cold-climate territory, so that's the class of unit priced here. These numbers come from PHILADELPHIA INTERNATIONAL AI, the closest NOAA station, 5.4 miles out.
What it actually costs to run, year to year
Electricity use for heating alone comes out to about 3,189 kWh a year on the 2000-square-foot reference house; folding in cooling puts the electric bill near $935 a year. The gas furnace it replaces burns roughly 40 Mcf a year at 15.04 per Mcf here, for a running cost near $1,016 a year (electricity here runs 20.75¢/kWh). Priced as a standalone purchase rather than against a like-for-like replacement, equipment payback runs about 168.1 years, for a 15-year net position $2,296 behind.
If your home heats with electric baseboard instead of gas
Not every home in Lansdowne has gas service. Swap the comparison to resistance heat instead of gas, and Lansdowne's answer improves. About $1,492 a year comes back this way, enough that the 5.4-year payback clears the $8,000 premium comfortably within the equipment's life.
Lansdowne against the rest of the country
Lansdowne lands at position 1625 out of 3206 cities on heating severity (coldest is 1), and 2939 out of 3206 by population size (biggest is 1). That's the middle third for winter severity among the cities covered here.
What to do with this number in Lansdowne
Lansdowne, Pennsylvania is home to about 11,225 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 Lansdowne, nothing is lost by holding off until the current equipment genuinely fails.
Ask a local HVAC contractor for a quote before committing either way.
More on how this number was built
The methodology guide walks through exactly how Lansdowne's 3.04 seasonal COP and the rest of this page's numbers get built. Lansdowne's 14°F design temperature falls on the cold side of the 25°F cutoff the cold-climate unit guide walks through.