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Thermostat Help

B101B101 Member Posts: 1
I would like to install a programmable thermostat to my hot water heating system.  I have a TACO SR506 switching relay and would like to power the thermostat from it.  On my battery operated thermostats I simply connect the red and white wires but on the new thermostats they require 24v power and do not take batteries.  Can I get power from the SR506 and where would I connect the wires on the SR506 and on the thermostat?  Thanks

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