: It automatically switches between summer and winter time periods (GMT/BST), so you never have to manually adjust the clock. Technical Specifications Compatibility Full range of Vaillant ecoTEC boilers Communication eBUS interface for intelligent boiler connection Power Source 4 x 1.5V AA batteries for the thermostat unit Temperature Range Adjustable from Special Functions Frost protection, cylinder boost, and service indicators Buying Guide: Where to Purchase Vaillant VRT350f
: Features a high-contrast, blue backlit display with simple plain-text menus, controlled by just two buttons and a rotary dial. vaillant vrt350f buy
Includes a to lower temperatures while you're away and warm the house for your return. : It automatically switches between summer and winter
Flexible programming options including 7-day, 5/2-day (weekdays/weekends), or 24-hour schedules. or 24-hour schedules.