Anyone here have a guess on headloss thru a standard water-air HX? I'm guessing mine is roughly 18" x 22" or so, 1" headers - but it feeds via 3 or 4 half inch ( or smaller ) tubes thru the coil.
Also what about a standard 1-1/4" od copper sidearm heater?
I assigned 50' equivalent length to my coil and 10' to the sidearm, but for some reason I'm getting only 1 or 2 gpm out of my loop from the shop to the house. It's 180' one way ( 360' round trip plus piping in basement ) of 1" pex-al-pex. According to my calcs the Grundfos Alpha should be moving 5+ gpm. I either screwed up the calcs or I have an airloc in my coil or something......
Also what about a standard 1-1/4" od copper sidearm heater?
I assigned 50' equivalent length to my coil and 10' to the sidearm, but for some reason I'm getting only 1 or 2 gpm out of my loop from the shop to the house. It's 180' one way ( 360' round trip plus piping in basement ) of 1" pex-al-pex. According to my calcs the Grundfos Alpha should be moving 5+ gpm. I either screwed up the calcs or I have an airloc in my coil or something......