Review: Honeywell TH9421C1004 Visionpro IAQ Thermostat

Buy Honeywell TH9421C1004 Visionpro IAQ Thermostat

Amazon: Customer Reviews: Honeywell TH9421C1004 Visionpro IAQ 5 stars. "Top of the line residential thermostat" Honeywell thermostats are amongst the best available for the home. I got the 9421 thermostat as part of a new heat

The VisionPRO IAQ touchscreen universal programmable thermostat provides electronic control of 24 Vac heating and cooling systems in addition to humidification, dehumidification and ventilation all with just 3 wires to the thermostat.

Honeywell TH9421C1004 Visionpro IAQ Thermostat

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Honeywell TH9421C1004 Visionpro IAQ Thermostat Features :

• Advanced dual-fuel control.
• Three wires to the living space allows for easy equipment upgrade
• Thermostat requires the Equipment Interface Module or EnviraZONE panel MFG#THM5421C1008 (not included).
• Automatically raises humidity levels throughout all rooms in the home.
• Removes air pollutants by exchanging the stale air in a house with fresh air.

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