Hello. I have a question: We want to build a one-and-a-half-story house with a pitched roof using timber frame construction. Now I am looking for the right heating system! We have decided to use a condensing boiler with a storage tank and two solar collectors in combination with a hydronic fireplace. On the ground floor, underfloor heating will be installed throughout, and on the upper floor, radiators will be installed in the two children’s rooms as well as in the bedroom. In the bathroom, I was thinking of a radiator return loop.
Now my question: Has anyone had experience with something like this? If yes, which company/system would you recommend and what should I pay attention to? Or does anyone have suggestions for improvements?
Thanks in advance for the help! Best regards, Artur
Now my question: Has anyone had experience with something like this? If yes, which company/system would you recommend and what should I pay attention to? Or does anyone have suggestions for improvements?
Thanks in advance for the help! Best regards, Artur
I have a gas condensing boiler with solar thermal and underfloor heating throughout the entire house. If I were you, I wouldn’t just listen to a heating technician but would consult an energy advisor.
As I mentioned before, a water-based fireplace is very demanding in terms of control systems and therefore not exactly cheap. The few times per year you use it will never cover the additional investment costs. So, you can safely do without it unless you get it for free.
The same applies to solar thermal systems—at least at the scale you described. Not in terms of control, but regarding the investment. However, if you need it for subsidies such as KfW or similar, then you have to install the 5m² (54 sq ft) collectors on the roof.
A mixed heat distribution system (underfloor heating and radiators) is probably the biggest money pit.
Imagine this:
Your underfloor heating runs at about 35°C (95°F) supply temperature and heats the house continuously. Now, you come along and switch on your radiators, which require roughly double the supply temperature to work effectively. That means your heating system kicks in the burner and runs at full power. How was it again with physics—how much energy does it take to heat water to double the temperature?
So, have everything explained to you by someone who really understands how it all works and not just someone who assembles pipes.
But my advice:
Radiators belong in older buildings. If your house is designed so that it neither overheats nor gets too cold, you hardly need to do anything, and the system regulates itself. Then you won’t have to quickly “turn up” a single room—it’s simply warm or cool when needed.
As I mentioned before, a water-based fireplace is very demanding in terms of control systems and therefore not exactly cheap. The few times per year you use it will never cover the additional investment costs. So, you can safely do without it unless you get it for free.
The same applies to solar thermal systems—at least at the scale you described. Not in terms of control, but regarding the investment. However, if you need it for subsidies such as KfW or similar, then you have to install the 5m² (54 sq ft) collectors on the roof.
A mixed heat distribution system (underfloor heating and radiators) is probably the biggest money pit.
Imagine this:
Your underfloor heating runs at about 35°C (95°F) supply temperature and heats the house continuously. Now, you come along and switch on your radiators, which require roughly double the supply temperature to work effectively. That means your heating system kicks in the burner and runs at full power. How was it again with physics—how much energy does it take to heat water to double the temperature?
So, have everything explained to you by someone who really understands how it all works and not just someone who assembles pipes.
But my advice:
Radiators belong in older buildings. If your house is designed so that it neither overheats nor gets too cold, you hardly need to do anything, and the system regulates itself. Then you won’t have to quickly “turn up” a single room—it’s simply warm or cool when needed.
Hello,
With gas you can cook, with a heat pump you can cool, which can be especially interesting for lightweight construction.
Best regards.
Biago schrieb:The more components involved in heat generation, the lower the efficiency, and the more vulnerable and complicated it becomes (competing demands)! Simply the best!
..... and said.....
Biago schrieb:Yes, first have a solid and precise basic assessment carried out => actual demand (capacity, energy) for heating and hot water. Then everything else will become clear!
..... but there must be a way/possibility for this!?...
Biago schrieb:Underfloor heating is very slow to respond, so heating ad libitum is usually not an option. It is typically operated continuously at a low level. At best, you can occasionally reduce the flow temperature. Radiators, on the other hand, are ideal for intermittent and differentiated heating.
..... underfloor heating and the remaining rooms upstairs (3 bedrooms) with radiators so that when I want to quickly warm up the bedrooms for a short time, I just turn up the radiator and that’s it!...
Biago schrieb:That will not work either.
.....consciousness should take ....
Biago schrieb:There are also those with 1000 kWh/year. Such absolute comparisons are completely pointless unless the actual energy demand is known!
....but the information on the internet regarding the consumption of such a system varies, with some values given as 2500 kWh per year and others around 6000 kWh per year
With gas you can cook, with a heat pump you can cool, which can be especially interesting for lightweight construction.
Best regards.
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