|Will I lose all my settings if there is a power failure?|
|No. The AD 2000 incorporates a 10 year lithium battery which retains all program settings in the event of a power failure.
Note: This battery does not operate the boiler during a power failure, it merely retains AD 2000 program settings. Chances are, you will have no heat during a power failure because the boiler contains parts which are powered by electricity.