Recent content by DEWFPO

Thanks, DEWFPO

The thermal break in the basement walls is just a 1-1/2 inch air gap between the raw concrete foundation and the uninsulated 2x4 basement walls. The cantilevered sections had either R-13 or R-19 but we've added blown-in, in those areas and air sealed them the best we could. It's difficult to...

Thanks for the calc's Dana. You are correct, the 120F section (Zone 6) is the setting on the mixing valve for the radiant floor heat. Our home is 2x6 construction with the minimum required wall insulation in 1989. The interior walls in the basement only have a thermal break between them and...

Thanks for the reply's. I am attaching a rough diagram/schematic of the existing system. Cycle times vary because all 5 baseboard legs are of different lengths and baseboard lineal footage. Two of these zones run in cantilevered areas (heat loss) of the house as well. The boiler has a 220k...

First, I want to apologize for the length of this post. Background : Our house had a 5 zone hydronic baseboard heating system that uses 5 thermostats with one main Taco circulator pump and one boiler. (a 14 year old Weil-McLain CGa-7-PIDN) We recently did a remodel and added a 6th zone...

Thank You, I appreciate your response. When the tanks fails, does it leak or is the bladder the problem? Is one brand of expansion tank better than another or are they all about the same? DEWFPO

Hi, I have 2 questions regarding the above. I need to install an expansion tank on my domestic water system. I was planning on installing it on the cold water side of the gas fired water heater. My street pressure is 127 lbs, knocked down to 75 psi by a Watts PRV. I have a 50 gallon...