Tez1982

Looks like my gradient starts at 15degrees outdoor temp with a flow temp of 30 degrees and ends up at -2degree outdoor temp at 40 degree flow temp. I guess if I wait for a cold day then set all the stats to max for 24hrs, if the bungalow is still cold, I would up the gradient so there's a higher flow temp and if it's too hot I reduce the gradient so there's a lower flow temp!? I don't think the mitsubishi FTC-5 has a set back mode unfortunately so I have it programmed off during bedtime hours.. I was considering buying a mitsu wireless control stat. Then running the system in room temp(auto adaption) mode. I think this sets the flow temp. In conjunction with the room temp and outdoor temp. automatically so the curve is set automatically. I could remove the actuators from all the UF heating loops in the main living area i.e. lounge,kitchen and family room then just use the bedroom stats as limiters. Would this be a good approach for better efficiency. The manual recommends to run in this mode,but with my current setup the auto adaption is not available.

Hi, I have a very similar installation, with stat in each room. I am Interested to find out how you ended up running the system for best efficiency. And what settings you ended up with for weather compensation low end and high end?