Construction costs are currently skyrocketing

The Renewable Energy Heat Act mandates the use of renewable energies. Solar thermal can be a component to meet the required quotas. It therefore pays off faster through subsidies than through actual energy savings.

The Renewable Energy Heat Act mandates the use of renewable energies. Solar thermal can be a component to meet the required quotas. It is therefore more profitable through subsidies than through actual energy savings.

That is correct. However, as far as I know, this applies to new systems; we will keep the old gas heating system for at least a few more years (it is from 2010), so we are not subject to this obligation. It is rather an ecological decision to save gas.

That is correct. However, as far as I know, this applies to new installations; we are keeping the old gas heating system for at least a few more years (it is from 2010), so we are not subject to the obligation. It is more of an ecological decision to save gas.

Compare the offer for solar thermal with photovoltaics + (DHW heat pump or heating rod).

That is out of the question for now, but certainly in a few years. When the gas heating has to be removed and we still had time to save. The current burden is already big enough.

That is out of the question for now, but certainly in a few years. When the gas heating has to be removed and we still have time to save. The current burden is already big enough.

Then don’t tie yourselves down with another burden in the form of solar thermal, which you might have to remove from the roof after a few years like others do in order to make room for photovoltaics ;)

Regardless of possible subsidies, solar thermal always loses out against photovoltaics.

Then don't tie yourself down with another burden in the form of solar thermal, which you might, like others, remove from the roof after a few years to make room for photovoltaics ;)

Regardless of possible subsidies, solar thermal always loses out to photovoltaics.

It should be mounted on the facade, the roof remains free :). There is still enough room for photovoltaics afterwards. We can't do everything at once, it simply isn't possible. I would like to do it, but we don't want to over-indebt ourselves and we have spoken with enough people from the field and the industry; better solutions for old buildings will come onto the market in the next few years than currently exist, and we'll wait those few years.