Pool & spa
Pool Heat Pump Size Calculator
Heat pump size for a pool, and what it costs to run compared with gas.
Result
A heat pump's COP is quoted at a warm air temperature and falls as the air cools, so the same unit delivers less heat and costs more per degree in spring and autumn. Below roughly 50 degrees F most pool heat pumps become ineffective.
Get a Free Business AuditQuestions
About this calculator
What does COP mean?
Units of heat moved per unit of electricity used. A COP of 5 means the unit delivers five times more heat energy than the electricity it consumes, because it moves heat rather than creating it.
Why does it heat so slowly?
Because it is sized to maintain a temperature rather than to raise one quickly. Initial heating from cold can take several days, which is why heat pumps are paired with covers.
The formula
BTU/h = surface area x temperature rise x 12; kW = BTU/h / 3412 / COP
Put this calculator on your site
Free to embed. Paste this where you want it to appear. It stays up to date automatically because it loads from BDEVY.
Please keep the attribution line. It is the only thing we ask in return.
Estimating is the easy part
The jobs you never hear about cost more than the ones you mis-measure. BDEVY builds the marketing, systems and automation that bring them in.