EcoRenovator - View Single Post - Controlling radiant floors (what thermostat to use?)

Mikesolar · 12-18-13, 05:08 AM

Yes, Europeans tend to leave the pumps running. I have a Viessmann boiler with a pump built in and to get the proper temp measuring of the fluid, the pump must run continuously. There is a lot of use of the Grundfos ALPHA or Wilo Stratus pumps which are ECM and tend to run 5-8w even though they can replace a 100w circ.

Zoning is more often done by zone valves and a bypass.

12-18-13, 05:08 AM	#9
Mikesolar Master EcoRenovator Join Date: Aug 2012 Location: Toronto Posts: 958 Thanks: 40 Thanked 158 Times in 150 Posts	Yes, Europeans tend to leave the pumps running. I have a Viessmann boiler with a pump built in and to get the proper temp measuring of the fluid, the pump must run continuously. There is a lot of use of the Grundfos ALPHA or Wilo Stratus pumps which are ECM and tend to run 5-8w even though they can replace a 100w circ. Zoning is more often done by zone valves and a bypass.