How much will a high-efficiency AC or heat pump save on your energy bills?
Computed from the weather station nearest your house, with your system selection and your temperature preferences. Every detail can be customized for a personalized analysis.
energy use
Six quick steps.Not sure of some? Skip them and we’ll apply the appropriate average.
1Where's the house, and how big is the AC?
2What's cooling and heating it today?
3Are you considering a different type of system?
4What efficiency tier are you considering?
Not sure? Select the most likely — we break them all down for you below anyway.
Or a specific SEER2 you're pricing
A new boiler leaves your AC untouched — there's no cooling tier to pick. Exact heating ratings live under "Tune the details."
5Where do you keep the thermostat?
Your personal savings depend a lot on where you keep your thermostat.
Summer
Winter
6How should we run your numbers?
Tune the details old unit · exact ratings · house · prices
Your old unit
Age
Original SEER
Furnace size (sticker)
Furnace AFUE
What does the boiler feed?
Exact ratings (from the AHRI certificate — overrides the tier pick)
Exact SEER2
Heating rating (HSPF2)
New furnace AFUE
Your house (drives the humidity math)
How tight is it?
People at home
Your prices (pre-filled for your area — fix them from a real bill for the best answer)
Electricity $/kWh
Gas $/therm
Oil $/gallon
Gas fixed charge $/mo
The savings ladder, for your home and system
costs / year
total / additional savingsper yr — vs today / vs the row above
vs today · 15 yrsat today's prices
Figure 1 · Sticky hours removed per year
Where the heat pump wins
Muggy air
"Sticky" = indoor air above a 62°F dewpoint, the comfort ceiling.
Computed from NOAA-derived typical-year weather (2,684 US stations, 2009–2023 normals), your local temperature hours, and the physics on the methodology page — every constant shown, nothing hidden. Estimates for planning, not a quote or a guarantee.
Not affiliated with any equipment manufacturer or utility. · powered by Liberty Air and Electric
energy use