Shism
2012-06-22 12:53:17
- #1
As an argument, it is claimed that with a solar-supported gas heating system it is possible to save energy
Whether solar-supported water heating is reasonable is a topic in itself... economically, it is often not sensible... it is often done in combination with gas heating to reduce primary energy demand in order to achieve a certain KfW classification...
When you consider the costs for the solar system + pump + electricity costs + financing costs + service life, etc., it is often more expensive than simply heating the water with gas...
and also to operate panel radiators.
A heat pump does not provide water temperatures high enough to properly operate a "conventional" radiator... therefore, in new buildings, almost always underfloor heating is used nowadays.. this works with significantly lower water temperatures in the range of about 35°C
So if you want to use panel radiators, it might be sensible to use a gas heating system.. but the question is why do you want to use panel radiators???
Why gas tank? I need an energy storage tank if I am not connected to the city network. Excuse me, could you express yourself a bit more colloquially? What is meant by modulation performance level and cycling in partial load range?
And exactly that is an important point... if you cannot connect to the city network, you need a tank... that costs money, takes up space, must be refilled regularly, etc... furthermore, gas heating systems with liquid gas do not seem to be as efficient as with natural gas from the supply network... at least that is what I infer from €uro's explanations...
To be able to make a qualified decision about what is better for you, you need a proper heating load calculation... then you can better foresee which option would be more expensive and which might be more economically reasonable in the long term...