Heat Pump Cost Calculator Ireland

This heat pump cost calculator for Ireland offers a transparent way to estimate the key financial aspects of a heat pump upgrade. It provides your installed cost, the SEAI grant you might receive, the net amount you would pay after the grant, and a comparison of running costs against your current heating system. The calculator is designed to be sign-up free and keeps all entered data in your browser, with explicit assumptions explained so you can see how figures are derived.

All figures are presented as ranges where appropriate, reflecting real-world variation between homes of the same type. The installed cost combines published Irish price ranges for your home’s size, derived from floor area or typical size by age, plus any radiator upgrades you may need. The SEAI grant component follows current program amounts: up to €10,500 for heat pumps plus additional grants for radiators or boiler removal, with higher caps for apartments. The grants are described as maximums that cannot exceed the total installed cost, and further details are available within the calculator’s explanation.

Running costs are calculated by comparing your home’s fuel use—estimated from metered gas use per square metre for your BER band and your floor area—with the price of fuel, using SEAI’s published figures. Running costs with a heat pump use the SPF assumptions drawn from SEAI guidance and Irish field trials. The SPF range for a heat pump in typical conditions is 2.5 to 4, with a measured average around 3.22 in a representative field trial. The model notes that performance can vary, and therefore provides a range rather than a single fixed figure. The comparison also accounts for the typical pattern that heat pumps operate most cost-effectively at longer, lower-temperature settings.

Beyond costs, the calculator provides a payback estimate that considers the net cost after the grant and the yearly savings, while clearly indicating when savings may be uncertain. It also includes a suitability assessment, acknowledging that some homes built before 2007 or with higher heat loss indicators may require SEAI technical assessment. The calculator uses public, date-stamped sources for its inputs, and presents a concise, locally relevant way to compare heat pump options with current heating setups without needing to request quotes or share data.