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For years this has been my favorite radiant t-stat https://www.supplyhouse.com/Wirsbo-Uponor-A3030101-Wirsbo-Radiant-Thermostat-WT-1-Heat-Only-Two-wire-2063000-p
You could set the min and max temps and then lock the unit so it could not be changed by the user. They were great for rental properties where people who did not understand radiant would crank up the heat only to get too hot and overheat the room. It had simple PWM to minimize overshoots.
The new one does not have the lockout feature, not only that but it looks like someone could accidentally turn off the heat with 1 button and freeze the house.
Does anyone know of a product with the features of the discontinued model?
"If you can't explain it simply, you don't understand it well enough"