Honeywell TL8100A1008 Programmable Hydronic Thermostat

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Honeywell's TL8100 Hydronic Thermostat offers the energy savings of a programmable control for a wide variety of applications. It can be used to control 2-way zone valves, 3-way zone valves or circulator pumps in both line volt and low volt applications. It also offers special protection modes to prevent system seizures and to reduce callbacks.