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Energy Saving Trust Recommended

Energy saving products that will save you money and help the environment

Horstmann ChannelPlus H21XL Full Programmer

ChannelPlus H21XL is a two channel central heating and hot water programmer with 24 hour programming and independent timing of heating and hot water. Gives up to three on and off settings per 24 hours for both heating and hot water. Includes a one or two hour boost for heating or hot water, advance button and 16 programme choices. The ChannelPlus H21XL has a built in automatic clock, clear back lit display and menu driven programming. 9 terminal wallplate and volt free contacts.


Dimensions (WxDxH) 16.3 x 3.7 x 10.1 cm
Energy Performance Information Basic Recommendations of CHeSS and Plain English Campaign
Horstmann ChannelPlus H21XL Full Programmer
The Energy Saving Trust Recommended scheme sets strict energy performance requirements for products certified on the scheme. We regularly review these standards to ensure that the most energy efficient products currently available are certified and carry the Energy Saving Trust Recommended logo. This product is certified as Energy Saving Trust Recommended based on a previous standard, which has since been updated.