I have always been a supporter of green electricity and renewable energy sources, so I would like to have an air source heat pump for our own house. My husband is much more conservative about this, and we haven't been able to find common ground so far. Based on the current gas prices, he calculated that an air source heat pump would only pay off after about 15 years. He assumes purchase costs of around 10,000 euros. But is this rough estimate/calculation really accurate? 15 years would be too long for me as well... We have a solid construction with 170mm (6.7 inches) Unipor bricks and a 140mm (5.5 inches) external thermal insulation composite system (ETICS) / external wall insulation.
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WPC Rubigen-118 Nov 2014 11:39Heat pumps are always worth considering.
The key factor is the time horizon you are looking at. It is important not to confuse investment with costs. Investing in, for example, a ground-coupled system (ground probes, groundwater, etc.) pays off in the long term because the heat source can be used for a second and third generation of heat pumps. In the case of a ground probe, a service life of more than 50 years can be expected.
However, air source heat pumps also have an advantage over conventional heating systems in terms of lifetime costs, as they require only about one-third of the primary energy.
Compared to ground-coupled systems, the service life of air source heat pumps is generally shorter, which should be taken into account.
My advice: have a heat pump specialist advise you and do not be misled by superficially low-priced offers.
The key factor is the time horizon you are looking at. It is important not to confuse investment with costs. Investing in, for example, a ground-coupled system (ground probes, groundwater, etc.) pays off in the long term because the heat source can be used for a second and third generation of heat pumps. In the case of a ground probe, a service life of more than 50 years can be expected.
However, air source heat pumps also have an advantage over conventional heating systems in terms of lifetime costs, as they require only about one-third of the primary energy.
Compared to ground-coupled systems, the service life of air source heat pumps is generally shorter, which should be taken into account.
My advice: have a heat pump specialist advise you and do not be misled by superficially low-priced offers.