Our Slimline-B v3 battery thermostat offers a viable upgrade route for those with a manual dial type thermostat working on a two wire system.

The Slimline-B v3 is surface mounting and requires 2 AAA batteries with a battery life of at least 12 months.

Optimum Start is standard on the Heatmiser Slimline-B v3, a feature whereby the thermostat calculates the amount of heat up time required.