Hello everyone
We are building a townhouse to KfW 55 standard. So far, we have planned to use conventional radiators, as we find their response time better. However, doubts are now arising about whether these radiators can even be used in a KfW 55 building or if there are any reasons against it.
Has anyone dealt with this or is knowledgeable about it here?
We are not fans of underfloor heating, but if there is no other technical option and someone can explain why, we would consider using it as a last resort.
We are building a townhouse to KfW 55 standard. So far, we have planned to use conventional radiators, as we find their response time better. However, doubts are now arising about whether these radiators can even be used in a KfW 55 building or if there are any reasons against it.
Has anyone dealt with this or is knowledgeable about it here?
We are not fans of underfloor heating, but if there is no other technical option and someone can explain why, we would consider using it as a last resort.
C
chand19868 Oct 2017 00:16I know only one good reason against underfloor heating: certain musical instruments. They cannot tolerate even mild warmth from the floor.
Still, I agree with Karsten. The strong criticism of the OP’s radiators doesn’t help.
If you don’t want it, you already have your reason...
Still, I agree with Karsten. The strong criticism of the OP’s radiators doesn’t help.
If you don’t want it, you already have your reason...
Some people are a bit reserved and hesitant to share the real reasons. It could be that you have to calculate very precisely, and underfloor heating is added with an extra charge in the building contract, but you want or need to somehow qualify for the KfW funding... if that's the case, I would advise caution, dear original poster, don't underestimate the costs of the new build, there’s always something.
Otherwise, here is an observation from four weeks in a house built according to the Energy Saving Ordinance with a gas boiler and underfloor heating. The house feels unusually warm to us. Almost too warm, we were used to different conditions. We have the windows and patio door open very often. The heating runs automatically: 6 a.m. to 10 p.m. at 20°C (68°F), at night 15°C (59°F).
A slightly cooler temperature wouldn’t bother me.
Karsten
Otherwise, here is an observation from four weeks in a house built according to the Energy Saving Ordinance with a gas boiler and underfloor heating. The house feels unusually warm to us. Almost too warm, we were used to different conditions. We have the windows and patio door open very often. The heating runs automatically: 6 a.m. to 10 p.m. at 20°C (68°F), at night 15°C (59°F).
A slightly cooler temperature wouldn’t bother me.
Karsten
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chand19868 Oct 2017 08:35Nordlys schrieb:
6 a.m. to 10 p.m. twenty degrees, at night fifteen.And you still find it too warm?
Man, there must be some hot-blooded people living up north...
Karsten, this is the comfort we talked about. Because everything is evenly warm and there are no cold surfaces in the house, it feels warmer.
By the way, you won’t reach 15°C (59°F) at night. More likely 19°C (66°F), maybe 18°C (64°F) if you’re unlucky.
If both of you feel too warm, adjust the heating curve of your heating system correctly.
If the original poster wants to save money: don’t be shy about asking. I’m happy to share a tip via private message on how to manage this cheaply with some DIY effort.
By the way, you won’t reach 15°C (59°F) at night. More likely 19°C (66°F), maybe 18°C (64°F) if you’re unlucky.
If both of you feel too warm, adjust the heating curve of your heating system correctly.
If the original poster wants to save money: don’t be shy about asking. I’m happy to share a tip via private message on how to manage this cheaply with some DIY effort.
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