Needed: Schematic for building control unit for hydronic radiant floor heat system

Jun 29, 2008 2 Replies

I'm looking for schematics for control units for hydronic radiant floor heat systems. Are there any out there, or does one have to buy a control unit already made? These cannot be all that difficult to make.


I recently wired a couple of units that were self contained with a transformer and a relay. All I did was supply 120 volts to them and the plumber connected the sensors. They were made by Honeywell, but I don't know the model number. Try a plumbing supply or maybe Grainger.

Here is one from Wirsbo:

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