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Hey everyone, I have a new house and recently turned on the floor heat and I feel like there is issues. I have a 1,900 SF home, 2 zones ran about 700LF in each zone however it’s ran as one zone with one pump grundfos 15-58fc. Closed loop hot water tank. Pump was installed to suck and not push so it’s installed at the end of the loop so now the issues.
Mechanical thermostat is set at 70 and hot water tank is set at very hot. The furnace thermostat will read 70 sometimes but the tile never feels warm. Sometimes I feel like the system struggles and never gets to 70 it will linger around 68. I woke up at 3am this morning to a very loud noise. It was the pump just screaming and was very hot. I shut everything down and turned the furnace on.
I live in Oklahoma and we’ve had a mild winter so I feel like the system shouldn’t be struggling. Any thoughts are appreciated