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Older Radiant heating 2 zone to Smart thermostat help.

painterswife
painterswife Member Posts: 2
in THE MAIN WALL

I installed a two zone system over 20 years ago. Two plug-in Taco 006 pumps , one for each zone. Each line voltage thermostats was connected to it's own transformer to run the pumps.

4 or 5 years ago I changed the thermostats to smart thermostats and add plug in transformers for the c wire at the thermostats.

I now want to pull thermostat wire to eliminate the plug in transformers.

Do I need two new transformers? One transformer and a relay? is there a better way than either of those choices?

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