The right pool heater depends on when you want to swim, the water temperature you want to maintain and the complete installation. Compare a proposed heat pump with gas or propane heating using current equipment data and the same operating assumptions.
An air-source pool heat pump uses electricity to move heat from the surrounding air into the pool water. It needs suitable airflow and installation clearances. AHRI’s pool heat-pump guide explains the heat-transfer process and its use for maintaining a desired water temperature.
Heat-pump efficiency is often expressed as a coefficient of performance, or COP: heat delivered compared with electricity consumed under stated test conditions. Ask for the rating conditions and performance data relevant to your proposed swimming season. A brochure’s best figure is not a guarantee of the same efficiency throughout the year.
A gas or propane heater burns fuel to produce heat. For either approach, ask an appropriately qualified installer to compare the output, warm-up time, operating range, siting and service requirements of the exact models being proposed. The choice should account for the available energy supply and the way you will use the pool.
A heat pump does not burn gas at the unit, but that does not make its operation emissions-free. Electricity supply and the equipment’s wider lifecycle also matter. Avoid treating a single efficiency claim as a complete environmental comparison.
Give the supplier your pool size, location, intended season, target water temperature and expected use of a cover. Request an estimate that states its weather assumptions, energy tariffs and hours of operation. Compare installation costs separately from running costs, and allow for future tariff changes.
A suitable cover and operating routine are part of the heating plan. Discuss how to limit heat loss while following the pool’s instructions. No fixed percentage saving or universal cheapest option can be promised without a like-for-like calculation for your project.
Allow for the connections, siting, access and maintenance specified by the equipment manufacturer. AHRI’s guidance includes keeping airflow and drainage clear and having equipment installed by a qualified professional. Follow the actual unit’s service schedule; a heat pump is not maintenance-free, and care should not be reduced to cleaning a filter.
Use the EVi configurator to explore your pool package, then confirm the heating specification with EVi. Agree the supplied model, included equipment, installation responsibilities and the assumptions behind any running-cost estimate. The installation guide helps frame the wider project.
