ᐅ Connecting Underfloor Heating to a Conventional Heating System?
Created on: 25 Jun 2016 20:58
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garfunkelG
garfunkel25 Jun 2016 20:58Hello,
I am still considering installing underfloor heating in my bathroom. This would be connected to a standard heating system that operates at around 60°C (140°F) supply temperature.
The heating engineer said this shouldn’t be a problem and that there are solutions for that.
A friend of mine had the same done in his bathroom, and when the underfloor heating is running, the floor gets quite warm— in my opinion, too warm. As far as I know, the underfloor heating there was only connected to the return pipe of the radiator system.
Maybe my friend is also operating the heating system incorrectly 🙂
Anyway, does anyone here have underfloor heating connected to a standard heating system and can share their experience regarding the floor temperature?
Was a thermal buffer/storage unit installed for proper temperature mixing?
If such a mixing valve is used and it regulates the temperature so that it never exceeds 30°C (86°F) to avoid the underfloor heating from getting too hot, doesn’t that lower the return temperature of the main heating system so much that the boiler or heat source has to work harder because colder water is being fed back into the system?
I am still considering installing underfloor heating in my bathroom. This would be connected to a standard heating system that operates at around 60°C (140°F) supply temperature.
The heating engineer said this shouldn’t be a problem and that there are solutions for that.
A friend of mine had the same done in his bathroom, and when the underfloor heating is running, the floor gets quite warm— in my opinion, too warm. As far as I know, the underfloor heating there was only connected to the return pipe of the radiator system.
Maybe my friend is also operating the heating system incorrectly 🙂
Anyway, does anyone here have underfloor heating connected to a standard heating system and can share their experience regarding the floor temperature?
Was a thermal buffer/storage unit installed for proper temperature mixing?
If such a mixing valve is used and it regulates the temperature so that it never exceeds 30°C (86°F) to avoid the underfloor heating from getting too hot, doesn’t that lower the return temperature of the main heating system so much that the boiler or heat source has to work harder because colder water is being fed back into the system?
E
ErikErdgas29 Jun 2016 12:02Hello garfunkel,
Of course, it is possible to supply both heating circuits via a hydraulic separator or distribution manifold. This way, the temperature is adjusted to the appropriate level for each heating distribution system. Your underfloor heating, for example, would have a return temperature sensor that monitors the return temperature and adjusts the flow rate if necessary.
Regarding the return temperature, it depends on the type of heat generator you have. A gas condensing boiler, for instance, benefits from low return temperatures because that is how the condensing effect is achieved.
Best regards, Erik from moderne.heizung
Of course, it is possible to supply both heating circuits via a hydraulic separator or distribution manifold. This way, the temperature is adjusted to the appropriate level for each heating distribution system. Your underfloor heating, for example, would have a return temperature sensor that monitors the return temperature and adjusts the flow rate if necessary.
Regarding the return temperature, it depends on the type of heat generator you have. A gas condensing boiler, for instance, benefits from low return temperatures because that is how the condensing effect is achieved.
Best regards, Erik from moderne.heizung
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