What is more efficient with a hydronic radiant floor heating system, a programmable or regular thermostat?

We just installed a radiant floor heating system and our plumber tells us that a regular thermostat is in fact more efficient than a programmable one, because it doesn't have to use a lot of energy to get the water hot again. We installed a high efficient munchkin boiler. Thoughts?

I also have a munchkin boiler and radiant heat. I put programmable thermostats in just because I like the way they look and there is a off switch on them. I do not set them back. The best way is to set your temp and let it be. This is especially so if it is a heated slab. Have you considered a out door reset to change the boiler temp if it heats up out side. I haven’t put one on but it could help with the overheat in spring and fall.

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