ᐅ Thermal mass versus insulation, floor construction with heating? Hypocaust system
Created on: 12 Jun 2009 19:12
M
MaddinDear home building forum experts and users,
Winter gardens lack the thermal mass of surrounding walls to store heat. Apart from the adjoining wall, only the floor remains. This component should therefore consist of as much mass as possible and use materials with good heat storage capacity, right?
However, with underfloor heating, the recommendation is usually to have as little mass as possible that is highly heat-conductive, combined with plenty of insulation, correct?
What compromise is advisable for underfloor heating in a winter garden? Should insulation take priority over thermal mass, or vice versa? What is more ecological/energy-efficient or economical?
Is a wall heating system in the adjoining wall useful? Glass panes are impermeable to radiant heat, after all...
Of course, the most ecological option is no heating at all, but the goal is not to heat the winter garden continuously, rather that it can be heated and is usable for family gatherings, for example. It contributes to heating the house on about 300 days a year, so heating it for 5-10 days is acceptable, in my opinion... 🙄
Schennjesse relies on his “Hypotauscher storage system,” which apparently resembles the ancient Roman hypocaust heating systems in structure. What do you think of this? Is it really suitable as a short-term thermal storage system?
Specifically, in the winter garden, floor convector heaters will be installed in front of the window areas, and underfloor heating in the rest of the room, possibly combined with a wall heating system on the adjoining wall, depending on what the heat demand calculation shows.
What is the optimal floor construction for this, if approximately 15–16cm (6–6.3 inches) are available above the reinforced concrete ceiling (occupied space below)?
Many thanks for your suggestions and tips
Maddin
Winter gardens lack the thermal mass of surrounding walls to store heat. Apart from the adjoining wall, only the floor remains. This component should therefore consist of as much mass as possible and use materials with good heat storage capacity, right?
However, with underfloor heating, the recommendation is usually to have as little mass as possible that is highly heat-conductive, combined with plenty of insulation, correct?
What compromise is advisable for underfloor heating in a winter garden? Should insulation take priority over thermal mass, or vice versa? What is more ecological/energy-efficient or economical?
Is a wall heating system in the adjoining wall useful? Glass panes are impermeable to radiant heat, after all...
Of course, the most ecological option is no heating at all, but the goal is not to heat the winter garden continuously, rather that it can be heated and is usable for family gatherings, for example. It contributes to heating the house on about 300 days a year, so heating it for 5-10 days is acceptable, in my opinion... 🙄
Schennjesse relies on his “Hypotauscher storage system,” which apparently resembles the ancient Roman hypocaust heating systems in structure. What do you think of this? Is it really suitable as a short-term thermal storage system?
Specifically, in the winter garden, floor convector heaters will be installed in front of the window areas, and underfloor heating in the rest of the room, possibly combined with a wall heating system on the adjoining wall, depending on what the heat demand calculation shows.
What is the optimal floor construction for this, if approximately 15–16cm (6–6.3 inches) are available above the reinforced concrete ceiling (occupied space below)?
Many thanks for your suggestions and tips
Maddin
Hello,
The heating would then only be an emergency heating system, so I wouldn’t put much effort into it.
Don’t forget the heat output from the guests during parties either 😉
Earthship models are practically free. However, you then need to keep out the high summer sun.
Best regards
The heating would then only be an emergency heating system, so I wouldn’t put much effort into it.
Don’t forget the heat output from the guests during parties either 😉
Earthship models are practically free. However, you then need to keep out the high summer sun.
Best regards
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