The A3100101 Heat-Only thermostat with touch screen from Uponor is designed for the precise temperature control of residential hydronic radiant heating systems. The thermostat can operate a hydronic radiant heating system based on the air sensor measuring operative temperature, a floor sensor (sold separately), or a combination of both to provide the optimal level of comfort and control. The floor sensor not only provides enhanced thermal comfort, but protects the floor’s surface from overheating. 800/321-4739; www.uponor-usa.com.