In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
I m at a house trying to figure out why 2 baseboards on the third floor wont get hot. . There are 3 baseboards, fed by three seperate supply and return risers. One works perfectlywhile the other 2 wont heat. Ive bled them both out and one will heat up slightly then cool down while the other wont get past lukewarm no matter what i do and ends up cooling down. I checked every radiator beneath and theyre working fine. I changed the circulator pump(return side) because the previous one was dead and i added a spirovent near the supply side of the boiler. The only thing i noticed there was no check valve on the return side. Oh ya, the whole system is one zone as well. Is the lack of a check valve on the return causing circulation problems for the 2 cold baseboards? Any help is appreciated. Thanks