Allegro-Haus GmbH experiences

Exactly what I mean.. It was offered to us that way, we even received some documents about it. I know the other houses as far as the ones with the bay window were already all gone back then. The city villas or the single-family houses with pitched roofs were still available in some numbers. Do you still know which plots were offered to you at [Leutewitzer Park]?

do you still remember which plots were offered to you at Leutewitzer Park?

Unfortunately, I can't say for sure anymore, I think it was 1, 9, or 13. At least they were relatively close to the street, it's been a while.

As you can see, everything has certain advantages, but also disadvantages. Each can only be properly classified and evaluated with a solid and precise basic investigation as well as overall planning.

I am now faced with the choice of ground-source heat pump or Viessmann gas heating system with integrated solar water heating. I was advised to go for the gas heating system although I had decided on a ground-source heat pump. Now I am no longer so sure and am posting the problem in the forum. Who has experience with Viessmann gas heating? How large should the gas tank be?

Thank you for any good advice

.... I was advised to use a gas heating system although I had decided on a ground source heat pump.

Who is "one"? As long as there are no concrete figures from the basic assessment behind "advice," it is relatively worthless.

.... How large should the gas tank be?

Why a gas tank, is there no natural gas? With liquefied gas, among other things, it should also be noted that the lowest modulation level is significantly higher than when using natural gas. A clear disadvantage => cycling in predominating partial load operation.

rgds

Who is "one"? As long as there are no concrete numbers from the basic assessment behind "advice," they are relatively worthless. Why a gas tank, isn't there natural gas? With liquefied gas, it should also be noted, among other things, that the lowest power level of modulation is significantly higher than when using natural gas. A clear disadvantage => cycling in predominant partial load operation.

"One" is the in-house sales department itself. The argument given is that with a solar-supported gas heating system, it is possible to save energy and also operate panel radiators. Why a gas tank? I have to have 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 power level of modulation and cycling in partial load operation?

..."One" is the in-house sales department itself. The argument given is that with a solar-supported gas heating system it is possible to save energy and also operate panel radiators.

That is not an argument "pro" gas, but can also be realized with other heat generators. Moreover, solar thermal systems in single-family houses are mostly uneconomical.

...Why a gas tank? I have to have an energy storage container if one is not connected to the city network.

So no natural gas possible or connection available?

...Excuse me, could you express yourself a bit more colloquially? What is meant by modulation performance level and cycling in part-load operation?

Every heat generator is designed according to the calculated standard heating load. This takes into account the extreme case because one does not want to be cold even under unfavorable conditions. However, this case only applies to fractions of the annual heating energy work. Mostly, a heat generator runs in part-load operation, i.e., as the outdoor temperature increases, the power demand decreases. A widely modulating device can adapt to this within limits. If not, => On/Off operation (cycling). The overall efficiency and lifespan suffer partly significantly as a result. With liquefied gas, the lowest performance level is higher due to the higher energy content, thus significantly less favorable compared to natural gas.