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Thermostat control for radiant primary with secondary heat source backup

I have a primary radiant heat system and hydro air back up for when the radiant can’t keep up. How do I set thermostats to control them ?

Comments

  • HVACNUT
    HVACNUT Member Posts: 4,084
    You need a 2 stage thermostat for heat and ?? for cooling.
    Look into a Honeywell Pro 9.
    Whatever you choose, make sure it's got a radiant anticipator.