The Honeywell Home Stored Hot Water Kit is an accessory designed to work with the Honeywell Evohome heating control system. Its primary purpose is to control the hot water system in homes with a stored hot water cylinder (as opposed to a combi boiler, which provides hot water on demand). Here's a detailed breakdown of the kit and how it works:

Key Components:

• Temperature Sensor: This sensor is installed on the hot water cylinder and monitors the water temperature in the tank.
• Hot Water Control Relay: The relay allows the Evohome system to control the water heating system by turning the boiler or immersion heater on and off as needed to maintain the desired water temperature.