Can underfloor heating be connected to a regular heating system?

  • Erstellt am 2016-06-25 20:58:02

garfunkel

2016-06-25 20:58:02
  • #1
Hello,

I am still considering installing underfloor heating in my bathroom. However, it would be connected to a regular heating system that operates at an approximate flow temperature of ~60°C.
The heating engineer says that is not a problem; there are solutions for that.
A friend of mine had this done in his bathroom as well, and the underfloor heating there gets very warm when running, in my opinion too warm. As far as I know, the underfloor heating there was only connected to the return flow of the radiator.
Maybe the aforementioned friend also operates the heating incorrectly :)

Well, does anyone here have an underfloor heating system connected to a regular system and can tell me about the warmth in the floor?
Was an intermediate storage tank installed for proper mixing of the temperature?
If such a mixer is operated and it always regulates the temperature below 30° to prevent the underfloor heating temperature from getting too high, does the return flow of the regular heating system then not become too cold, causing the heating to have to work harder overall because colder water is fed back into the system?
 

ErikErdgas

2016-06-29 12:02:34
  • #2
Hello garfunkel,


of course, there is the possibility to supply both heating circuits via a hydraulic separator or distributor valve. In this case, the temperature is mixed to the level required for the respective heat distribution system. Your underfloor heating, for example, then has a return temperature sensor that checks how high the return temperature is and adjusts the flow if necessary.


When it comes to the question of return temperature, it depends on what kind of heat generator you have. A gas condensing boiler, for example, appreciates low return temperatures, as the condensing effect can only be achieved with them.


Best regards, Erik from moderne.heizung
 

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