How does a heat pump work?
A heat pump extracts heat from the air, soil or water using electricity. This heat can be used to heat your home or business premises and, if you wish, for tap water as well. This reduces your gas bill but your electricity bill will of course increase. In fact, a heat pump works like a refrigerator in reverse.
What types of heat pumps exist?
Hybrid heat pump
We know different types of water pumps. The hybrid water pump is mainly used in moderately insulated houses and works in conjunction with your HR central heating boiler. Moderately insulated still means that the roof, floor and also the walls must be insulated. Double glazing is also required. As with the solar boiler, the high efficiency boiler is used for supplementary heating of the house on cold days. The high performance boiler also heats the tap water for the shower and kitchen.
Hybrid pumps reduce CO2 emissions by 25% and lower energy costs. A hybrid water pump can work with your current radiators but the pump works more efficiently if you use so-called low temperature heating such as underfloor heating or special radiators.
The disadvantage of the hybrid pump can be that its outdoor unit with its fan can make a lot of noise during the heating season. So first of all, pay attention to a fan that makes little noise and secondly. Put the thing in a place where your neighbors and yourself can still sleep well. On these hybrid water pumps you now get a subsidy, € 1,500 to € 1,800 for the most economical unit. Oh yes, apply for this subsidy within 6 months after installation.
A ventilation heat pump only works in a house or building that is mechanically ventilated. This pump extracts the heat from the ventilation air and can certainly contribute to energy and CO2 savings. However, the capacity of the thing is limited and rarely large enough to heat the whole house with. The subsidy amount for this type of pump starts at € 1,350, – euro and rises to € 1,650, – for the most economical version.
View information about the water pump boiler here.
Full heat pump
A complete heat pump completely replaces your high efficiency boiler and provides both heating for the whole house and tap water for showers and kitchens. But this requires a house or business premises that is very well insulated. Ordinary double glazing is no longer sufficient. HR++ or HR+++ is necessary. Most houses from 1992 onwards meet this standard, or of course older houses that were extra insulated afterwards.
Ordinary radiators are not sufficient here. Underfloor heating or LTV radiators are necessary. The advice is to keep the temperature at a constant level as much as possible because heating up is relatively slow. The complete heat pump also requires a boiler tank that is man-sized for the hot water. It also requires an outdoor unit that can make noise. This heat pump is a lot more expensive than the ones mentioned above, not counting the modifications to the rest of the heating system. The subsidy is also somewhat more generous, starting at € 1,300 and rising to € 3,400.
The complete heat pump has two variants. The pump that extracts heat from the outside air and the ground pump that extracts heat from the ground. This, however, requires an investment in a pipe system that extracts the heat from 50 to 150 meters under the ground. It is more energy efficient than the air pump, but at the same price you can buy an entry level middle class new car.
And now all directly on the heat pump?
That is just the question. As shown above, before anything else a good or very good insulation of the house is needed. And that investment comes before an investment in a heat pump. The initial investment will then be earned back and the extra comfort you will experience will be added to it. Moreover, the price of heat pumps is expected to drop considerably in the coming years because they will be produced in larger quantities.
Experts expect a price drop of 30% in the next 10 years. Don’t forget that at current pricing, it takes you about 12 to 20 years to earn back a heat pump, depending on whether you choose the hybrid model or the full model. I also expect the noise level of the new heat pumps to be lower now that more attention is being paid to this. The major boiler manufacturers are also now seeing that the game is up.
Remeha acquired Techneco in early 2019 to become the market leader in heat pumps. The growth will initially come mainly from new homes that are no longer connected to the gas grid. Starting with insulation may also be the best decision right now for that reason.
Do you want to start with a heat pump? Then consider the hybrid model together with your existing central heating boiler. When 12 years have passed, you will have earned that one back by now, and if both need replacing, you can opt for the latest full-size heat pump.
More information, including tailored advice on whether your home is suitable for a heat pump, can be found on the website of Milieucentraal.