Simplex has been developed for the needs of the homeowner or landlord who desire a central heating controller that is simple to use and easy to understand. The programmer provides a 24Hr "timeline" of manual switches to select the on/off periods for either heating or hot water. This approach means programming the unit is simple, with fast modifications as and when desired.
Select switch for 24hr, 5/2 day or 7 day operation
Select switch for fully pumped or gravity systems
One hour boost and advance facility
Industry standard backplate
Direct plug-in replacement for other manufacturers product