In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
I need to put a need mechanical room at the end of this week. There was a big oil spill and they just have the cement poured so in two days he'll be looking to have his electrical upgrade done (insurance company) and wants the heating to be put back with an electric boiler.
Here's the stats:
Zone 1: 18700
Zone 2: 19100
Zone 3: 20500
I was going to go with zone valves, a 1" main trunk, with 1"X.75" tee's for the zone valve headers. I'll try and attach a little sketch. This is a Slant/Fin Boiler. There specs call for a bypass line, can anyone comment if that is totally necessary? If so what is the reasoning? Does the boiler heat up and turn on the circulator with a low limit is reach, and this bypass prevents the circ from pumping again 3 closed zone valves?
In my sketch I'd left out the bypass loop, and the low water cut-off, where would be the best placement for that?