alex889's latest activity

I've heard many problems with CCTs on systems like this, I'm not convinced it works well in practice. I would need to learn more about it

That still needs Vaillant thermostat, even if using weather compensation. I would like to avoid any external controls on the wall...

I'm going with a Viessmann 200 system boiler, using Esbe valves for each heating circuit controlled directly from the boiler, no...