Insulation
Good insulation makes a heat pump more efficient. With modest insulation, hybrid is often a sensible step.


A hybrid heat pump works with your boiler. All-electric heats without gas. Which route fits depends on insulation, radiators or underfloor heating, and your plans for the coming years.
In an advice call we look at your home and calculate what is realistic, so you do not pick a system that is too large or too small.
Good insulation makes a heat pump more efficient. With modest insulation, hybrid is often a sensible step.
Underfloor heating or generous radiators help at lower supply temperatures and higher efficiency.
The outdoor unit makes some noise. Placement and the right model keep that within the standard.
Not every home is ready for fully electric. We work out what fits your insulation and use.
A heat pump needs power. We check whether your connection and consumer unit can handle it before we start.
Many air-to-water heat pumps qualify for ISDE. The notification code is on page 5 of the quote; you apply at RVO.
A heat pump needs little upkeep, but periodic checks keep efficiency on track. Plan that in.
ISDE check
A few questions, a first indication. RVO decides.
ISDE is the Investment Subsidy for Sustainable Energy and Energy Saving, the Dutch national fund for heat pumps among other measures. A few questions, a first indication.
Prefer a dedicated page? Open the ISDE check. Just looking up the code? Find the notification code.
Who can apply is on ISDE for homeowners. How to fill it in is in our guide heat pump subsidy. Apply in eLoket.
A heat pump does not make heat, it moves it. Like a fridge, but in reverse: it extracts heat from the outside air, even when it is cold, and brings it indoors. That is why it delivers more heat than the electricity it uses.
A hybrid model works alongside your boiler: the pump does most of the work, the boiler steps in on cold days. An all-electric version heats all year without gas. Which fits depends on your insulation and your heat delivery system.
The unit works most efficiently at a lower supply temperature. A well-insulated home with, say, underfloor heating or generous radiators is therefore ideal. With modest insulation, a hybrid setup can be a sensible step.
The system warms evenly and can sometimes cool in summer. The outdoor unit makes some noise. Through placement and the right model we keep that within the standard, and we look for a good spot in advance.
For an air-to-water heat pump you can apply for ISDE after installation. The notification code is on page 5 of the quote. Whether the fund fits your situation is in the ISDE check. You file yourself in eLoket (Dutch).

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More about air conditioningOur quote is all-inclusive: purchase and installation. The price depends on your home and your heat demand. Request a tailored price with no obligation.
That depends on your insulation and your heat delivery system. Our specialists assess it and advise a hybrid or all-electric heat pump.
For an all-electric heat pump, good insulation pays off. For a hybrid it matters less. We discuss what makes sense in your situation.
A heat pump uses far less gas. How much you save depends on your home and current usage; we calculate it upfront.
Usually within a few weeks. Our installers fit the heat pump and calmly explain how it works.
For an air-to-water heat pump, hybrid or all-electric, you can apply for ISDE as an owner-occupier. How that works is in heat pump subsidy. Whether it fits your situation is in the ISDE check. We do not file the subsidy for you. The notification code is on page 5 of the quote. You file yourself in eLoket (Dutch).
No. Air-to-air falls outside the fund. For an air-to-water heat pump it can apply.
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Combine a heat pump with solar panels or a home battery and you upgrade the whole home in one coherent plan.
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