Frequently asked questions
About heat pumps, subsidy, boilers, servicing and ventilation. Something wrong with your system that isn't covered here? Call the workshop.
FAQ15
Heat pump
Is a heat pump right for my home?
Your insulation and radiators decide most of it. The heat check gives you a first idea. At the free survey we work it out room by room. If your home isn't ready yet, the advice will simply say so.
Hybrid or all-electric: what's the difference?
A hybrid heat pump works together with your boiler. The boiler helps out when it freezes and provides hot water. All-electric replaces the boiler completely, with a cylinder for hot water.
How much noise does the outdoor unit make?
A modern outdoor unit makes about as much noise as a fridge. We choose the spot so that you and your neighbours aren't bothered, and we keep to the noise rules.
Can I keep my radiators?
Usually, yes. Sometimes we swap a few radiators for larger ones, so the room still gets warm at a low temperature.
Subsidy
How much ISDE subsidy will I get?
For a heat pump in 2026 you get a fixed amount plus an amount per kW. For a 4 kW hybrid that's about €1,925. We work out the exact amount in your quote.
Who applies for the subsidy?
You apply for the subsidy once the installation is finished. Suzan fills in the application with you. The money goes into your account, usually within eight weeks.
Do I have to pay the full amount myself first?
Yes, the subsidy comes afterwards. Want to spread the cost? We'll look at the options with you, such as a loan from the Warmtefonds.
Boiler
When does my boiler need replacing?
A boiler lasts fifteen years on average. If it's older and breaks down more often, a new boiler works out cheaper than repairing it again and again.
Can I still buy a new gas boiler?
Yes, you can. We do look with you at whether a hybrid heat pump would be smarter in the long run. Every boiler we fit is ready for one.
Will I be without a boiler for long?
No, one working day. At half past seven the old one comes off, and by about four you have hot water from the tap again.
Servicing and breakdowns
What does servicing cost?
A service plan costs from €12.50 a month, including a yearly service and no call-out charge for breakdowns. A one-off service costs €139.
How quickly does an engineer come out for a breakdown?
With a service plan we deal with your breakdown within 24 hours, often the same day in winter. The breakdown line is open day and night.
Do you also look after systems you didn't install?
Yes. We service all common brands of boilers, heat pumps and MVHR units.
Ventilation
Why ventilation when you make your home greener?
A well-insulated home is airtight. Without good ventilation, damp and CO₂ linger. An MVHR unit refreshes the air and keeps the heat inside.
How often do the filters need replacing?
About twice a year. You can do it yourself. At the yearly service we clean the unit and balance it again.
Didn't find your question?
Call the workshop on working days, or send a message. We reply within a day on working days.