Why insulation before a heat pump?
Why good insulation makes the difference for a heat pump, which measures help most, and when a hybrid setup makes more sense.
A heat pump works best in a well-insulated home, because it can then heat at a low temperature. The less heat you lose, the more efficiently and cheaply the pump runs.

Why insulation lays the foundation
The unit supplies heat at a lower temperature than a boiler. That is efficient, but only works well if your home holds that heat. In a draughty, poorly insulated home the pump has to work harder and uses more power. Insulation lays the foundation.
Which measures give the most
Start with the biggest leaks: roof, facade, floor and glazing. Good glazing, cavity or roof insulation and sealing gaps often make the biggest difference. Which measure helps most depends on your home and what has already been done.
When you can't insulate all at once
Not everyone can tackle everything at the same time. A hybrid setup is then a fine intermediate step: you already save a lot on gas while you insulate at your own pace. Later you can often still move to all-electric.
What SolarFast checks during the survey
During a heat pump survey we look not only at your boiler, but also at cavity wall insulation, roof insulation and the type of radiators or underfloor heating. A 1930s home in the Randstad often needs different measures than a recently built terraced house.
Based on that we advise hybrid or all-electric and which insulation steps give the most before or after installation. That way you avoid the pump having to work harder than necessary.
Frequently asked questions
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The same knowledge you're reading here, we put to work for households across the Netherlands.
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