I searched on here and other sites to no end. I will get some pictures up later if I can.
I have a mixing valve on the supply side and my question is will the boiler (Aquatherm wood eater) recover with the supply being mixed with the concrete return to 115 or if I turn it up to supply 130is so the return is running hotter not dumping all the cold into the return. If I do turn up the mixing valve hot water is bypassing the valve and heating up my return pipe to a point where I can not put my hand on it. So I am thinking that it is not mixing at all going into the floor. I know the floor is well insulated from the standpoint that I shut it off last night and in the morning I only lost about 5 degrees in the kennel, it's just that when it runs it takes a long time to get up to temp on the thermostat to shut it down. I have made progress with this as in years past I didn't even bother with the floor heat and just used a hanging heater. I will see if I can get a picture of what I am talking about. I should mention that when it is running and the slab is warm if my supply is 115 my return is around 100 and when I crank it up my supply is 140 and return around 120 before the mixing valve but much hotter going back to the system after the valve.
Thanks
Tom
I have a mixing valve on the supply side and my question is will the boiler (Aquatherm wood eater) recover with the supply being mixed with the concrete return to 115 or if I turn it up to supply 130is so the return is running hotter not dumping all the cold into the return. If I do turn up the mixing valve hot water is bypassing the valve and heating up my return pipe to a point where I can not put my hand on it. So I am thinking that it is not mixing at all going into the floor. I know the floor is well insulated from the standpoint that I shut it off last night and in the morning I only lost about 5 degrees in the kennel, it's just that when it runs it takes a long time to get up to temp on the thermostat to shut it down. I have made progress with this as in years past I didn't even bother with the floor heat and just used a hanging heater. I will see if I can get a picture of what I am talking about. I should mention that when it is running and the slab is warm if my supply is 115 my return is around 100 and when I crank it up my supply is 140 and return around 120 before the mixing valve but much hotter going back to the system after the valve.
Thanks
Tom