recap on hydronic LWCO location

archibald tuttle

piping lochinvar noble in place of a munchkin (I keep those going til the heat exchanger fails and if it weren't such a PIA to replace i'd probably keep em going forever. love these simple boilers, it is a shame they don't make em anymore.).

had the LWCO on the Boiler outlet. threads on here say on the "supply" if not otherwise indicated by manufacturer.

I guess that makes sense in the case of steam formation although I would think on the inlet you might get low pressure from the suction of pump. i put a tee on both sides while I was piping (xtra 40 bucks) so i can go either way. just trying to recap theory of what makes the most sense.

brian

archibald tuttle

and my consternation thought with the term "supply" is that I assume that really means system supply as in boiler outlet. yet it is the inlet that supplies the boiler.

perplexed by terminology in exeter