ᐅ Digital Room Thermostat for Underfloor Heating – Which One to Choose?

We received the ones labeled "wheel" from the general contractor. Since moving in, they have been without power and always open. The heat pump controls the rest based on the outdoor temperature, and when the sun is shining, the photovoltaic system also contributes a bit. We maintain a consistent temperature in all rooms throughout the house.

blackm88 schrieb:

We received the ones labeled "Rad" from the general contractor. Since we moved in, they have been without power and always open. The heat pump adjusts everything based on the outdoor temperature, and when the sun is shining, the photovoltaic system also contributes a little. We always have a constant temperature in all rooms.

Same here. With those things, energy consumption was about 20% higher and there was chaotic regulation. So they are not only unnecessary but also energy wasters.

You also have to consider the power consumption of the actuators: in my case, 1W times 25 units equals about 0.6 kWh per day. That’s roughly 219 kWh per year. This accounts for 10% of my heating electricity consumption. Totally crazy, but I’m not sure if they really draw power continuously.

michert schrieb:

You have to really consider the power consumption of the actuators: for me, 1W times 25 units equals about 0.6 kWh per day. That’s roughly 219 kWh per year. That’s 10% of my heating electricity usage. Totally crazy, but I’m not sure if they actually draw power constantly.

Mine do. Open = powered. They also get warm. Even when I set them to manual open. Therefore: open manually and cut off the power.

Fuchur schrieb:

This seems to be one of those quotes that has been copied by everyone for years, but no one actually implements it themselves. At least, I have never read about a single person who actually applied for it and was officially exempted. Always just theoretical talk.

In the end, the advice givers usually end up installing them themselves (and possibly deactivate them illegally after moving in) or simply don’t install them at all, relying on the fact that no one checks anyway.

You need to take care of it in time. I missed the deadline. But I also don’t know if you can still get KfW funding without an ERR. So, accordingly, actuators removed and fuse pulled. There are a few builders who implement this on time, see the pink forum.

Daniel-Sp schrieb:

You need to take care of it in time. I missed the deadline. But I also don’t know if you can still get KfW funding without the ERR. So I removed the actuators and took out the fuse. And there are a few builders who manage to do this on time, see the pink forum.

Seriously, I’ve been dealing with these issues for a while now. You often read about "getting exempted," but I’ve never actually heard anyone say, "I got exempted." What I have read (though very rarely) is that "it’s so difficult to get exempted, it wasn’t worth the effort for me." I think the easiest solution is probably to install these units poorly and, if the plumber cooperates, integrate them in a way that makes them essentially non-functional.