The heating engineer has a clear opinion: The technology of heat pumps is far from mature, which is why he himself has just replaced his old oil heating system with a modern gas boiler.
Many laypeople currently think differently.
Frightened by the consequences of the Russian attack on the gas market, they invest stately five-figure sums in heat pumps, often in connection with a photovoltaic system on the roof.
Because the bill can only halfway add up if the electricity that is burned is green.
The heat pump manufacturers are rejoicing, expecting full double-digit growth rates in 2023. Many points remain unresolved: How, for example, can existing properties without underfloor heating and panel radiators be reliably warmed up when conventional heat pumps do not exceed a flow temperature of 50 degrees?
Or how are the existing power grids supposed to withstand future loads when the majority of consumers want to heat with heat pumps in winter and charge their electric cars?
The public sector must finally invest in modern networks and honestly inform suppliers about the potential and limits of heat pumps.
Otherwise there is a risk of consumer frustration.