Siemens RWB2e Twin Channel Programmer

Siemens RWB23 Twin Channel Programmer replaces a wide variety of Siemens controls as it has the same backplate which makes for an easy swapover. This programmer is part of the Siemens range and is designed to allow you to control how your heating system operates. It is a reliable product which could help cut the cost of your energy bill significantly. It makes use of a twin channel programmer which allows you to setup when your heating turns on.