ᐅ Do radiators always need to be installed under windows in new constructions?
Created on: 26 May 2022 19:39
R
Rumbi441
Hello,
we are currently planning and looking to reduce costs by replacing the underfloor heating with regular radiators. However, we do not want to place them in front of the windows. This raises the question: Is it necessary in a new timber frame construction to install the radiators below the windows, or is it equally effective to position them elsewhere in the room? The size of each room is under 30 sqm (320 sq ft), and the windows are triple-glazed. We are not building according to KfW standards, but the carpenter mentioned that due to the wood construction, the walls are thick and well insulated.
Do you have any experience with this?
we are currently planning and looking to reduce costs by replacing the underfloor heating with regular radiators. However, we do not want to place them in front of the windows. This raises the question: Is it necessary in a new timber frame construction to install the radiators below the windows, or is it equally effective to position them elsewhere in the room? The size of each room is under 30 sqm (320 sq ft), and the windows are triple-glazed. We are not building according to KfW standards, but the carpenter mentioned that due to the wood construction, the walls are thick and well insulated.
Do you have any experience with this?
We were told back then that radiators should be placed under the windows; this saves space and the warm heat that rises from the radiator supposedly prevents the window frames from cooling down too much and forming condensation.
I can’t say for sure if this still applies to well-insulated houses.
By the way, I understand if you use regular radiators, there’s nothing wrong with that 🙂 and with district heating, it’s probably very straightforward as well.
I can’t say for sure if this still applies to well-insulated houses.
By the way, I understand if you use regular radiators, there’s nothing wrong with that 🙂 and with district heating, it’s probably very straightforward as well.
Hello OP,
The radiators are installed below the windows because, as someone else already mentioned, windows are thermal bridges in the room.
The "cold" air that comes through the windows falls downwards, where it is guided through the upper grille of the radiator, heated there, and then exits at the bottom as warm air that rises back up into the room.
This appears to be the most energy-efficient solution.
Wall-mounted radiators can of course also be installed. However, their mode of operation is based on radiant heat.
Another option is a surface heating system in the wall, or a vertical floor heating system.
Best regards
The radiators are installed below the windows because, as someone else already mentioned, windows are thermal bridges in the room.
The "cold" air that comes through the windows falls downwards, where it is guided through the upper grille of the radiator, heated there, and then exits at the bottom as warm air that rises back up into the room.
This appears to be the most energy-efficient solution.
Wall-mounted radiators can of course also be installed. However, their mode of operation is based on radiant heat.
Another option is a surface heating system in the wall, or a vertical floor heating system.
Best regards
Rumbi441 schrieb:
The heating on site is supplied by district heating from a biogas plant, but that doesn’t really matter, does it?How can you assume that it might be irrelevant in a heating-related question whether you have direct access to your own boiler?https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
Rumbi441 schrieb:
Thank you for your feedback. Heating on site is provided by district heating from a biogas plant, but that shouldn’t matter, right? This is relevant to the extent that (I believe) district heating often operates at higher temperatures than you would typically achieve with a heat pump. Therefore, some of the points raised here against conventional radiators, which assumed relatively low flow temperatures, are essentially irrelevant. (Please correct me if I’m wrong here 🙂)
D
Deliverer28 May 2022 11:34No, that’s true, as long as the biogas plant (probably the most sustainable of all district heating and farm heating suppliers) provides affordable energy.
The problem arises when the heating system is designed for the high supply temperatures of district heating but those temperatures are no longer provided at some point. This will likely happen to many houses connected to coal power plants within the next five years. So it’s better to build with heat pump compatibility from the start.
These solutions are almost never cheaper than heat pumps, but they save space, and sometimes you are even required to use them.
The problem arises when the heating system is designed for the high supply temperatures of district heating but those temperatures are no longer provided at some point. This will likely happen to many houses connected to coal power plants within the next five years. So it’s better to build with heat pump compatibility from the start.
These solutions are almost never cheaper than heat pumps, but they save space, and sometimes you are even required to use them.
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