Heat pump guides

Clear explanations of the numbers that matter when you choose a heat pump — written to help you read a spec sheet and a contractor's quote with confidence.

Smart thermostat on a wall
Guide · 8 min read

SEER2 and HSPF2 explained: what the efficiency numbers really mean

A plain-English guide to SEER2, EER2, HSPF2 and COP — the ratings on every heat pump spec sheet — and how they translate into dollars on your power bill.

Houses covered in snow on a winter day
Guide · 9 min read

Cold-climate heat pumps: how to read the 5°F and 17°F numbers

What makes a heat pump 'cold-climate', how much capacity typical models keep at 17°F and 5°F, and how to use those numbers to avoid expensive backup heat.

Bright modern living room
Guide · 7 min read

Heat pump sizing: tons, BTU/h and why bigger isn't better

How heat pump capacity is measured, how many BTU per square foot is a myth, and what a proper Manual J load calculation looks for.

Heat pump outdoor units mounted on a white wall
Guide · 6 min read

Same heat pump, different badge: how rebranding works in HVAC

Why Carrier, Bryant, Tempstar and Heil — or Goodman, Amana and Daikin — often sell identical equipment, and how to use that to compare quotes.

Outdoor heat pump unit next to a brick house
Guide · 6 min read

What does a heat pump cost to run? A state-by-state view

Why the same heat pump can cost three times more to run in one state than another, and what drives the difference: electricity prices and climate.