Heating programmer Honeywell
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Honeywell
Well suited to control combination boiler installations or additional zones in an s plan plus system - Optimum stop, start & delayed start features that learn how the room is heated - On screen text display and function buttons to ensure simplified progra
Honeywell ST9400C is a 7-day, 2-channel programmer for heating and hot water systems. It allows you to schedule up to three on/off events per day, providing precise control over your home's energy consumption.


