ᐅ Is a Thermostat for Underfloor Heating Necessary or Mandatory?

Hello everyone,

On Saturday, we will begin the initial electrical installations in our new build. Now we have a question regarding thermostats.
If the heating quote states "underfloor heating up to x sqm (x sq ft) including manifold, individual room control without insulation beneath," are thermostats included? Unfortunately, the heating specialist is already on Christmas vacation.
Our question is whether thermostats make sense at all or if they are even mandatory. Does every room need a thermostat? How is this handled in your experience?
Best regards

Hello,

milkie schrieb:

If the heating quote says "Underfloor heating up to x sqm including manifold, individual room control without insulation underneath," are the thermostats included? Unfortunately, the heating specialist is already on Christmas vacation.

"Individual room control" simply means that a thermostat is installed in each room. It has to be that way because, for example, your living room will require a different heating demand than the guest bathroom or hallway.

Regards, Bauexperte

But beware! The general contractor installs the heating system and the thermostat. There is no mention of any wiring! Someone needs to coordinate who will install the wiring for this—either the general contractor or the electrician.

Ok, thanks. We will clarify who will install the wiring and start thinking about where we want to place the thermostats. That will be dealt with in the new year. The builder won’t come before then anyway.

There were some nice discussions here about whether a guest toilet with a room size of 1.5m² (16ft²) needs a separate thermostat or not.
Separate thermostats are useful; alternatively, you could control it via the flow rates at the distribution circuits, but then it’s not as easy to adjust.

In our case, the actuators were installed by the heating engineer, and the room thermostats (matching the light switch series) were handled by the electrician.

Our hallways and the utility room don’t have controls because the wiring is already routed there anyway.

Personally, I’m not a big fan of room thermostats because:

If I go to the bathroom at 6 a.m. and think, “Hmm, it could be warmer,” I turn it up a bit. An hour later, when I’m already out of the house, my wife comes into the bathroom (during which time it obviously hasn’t gotten warmer yet), feels cold, and immediately turns it up two degrees higher. Later in the day, when someone goes into the bathroom, it’s stiflingly hot.

My brother’s heating engineer took a different approach: the heat is regulated by a fixed flow rate per room. The heat pump adjusts the required heat based on the outdoor temperature sensor. It works very well.