Recent content by northforker

I’ll attempt to answer my own question here. Since I already have the thermostat that triggers the pump relay, I think I’m all set. The Seisco heater didn’t have a flow sensor, so it relied on an end switch from the pump relay to trigger the heater. Replacement heaters like the AO Smith unit...

I have the exact same boiler (Seisco SH-11) and mine just crapped out too. It fried a relay on the circuit board. I’ve looked at potential replacements like the AO Smith unit mentioned by user powerhound above. I’m confused though as to how you would get it to work in tandem with a circulator...