This programmer is excellent. I bought it for the opentherm feature. The only issue I had with setting this up was the boiler itself needed a plug linking out inside to enable the OT terminals, this wasn't immediately obvious. Other than that it was easy (though I'm an electrician). The open therm tech is very very good. The radiators no longer get piping hot, they don't need to and the rooms all get nice and warm, but not excessively warm like they used to. Very impressive product for the price.
Verified purchase: Yes | Condition: New
Excellent value and easily fitted and works well. Would definitely recommend.
Verified purchase: Yes | Condition: New
Amazing product was fitted within 15mins by a boiler engineer and is brilliant at telling to the room temperature and easy to program with on and off temperatures for your main room
Verified purchase: Yes | Condition: New
Good size easy to use but hard to get temperature just right.
Verified purchase: Yes | Condition: New
A controller I use frequently easy to set up and use
Verified purchase: Yes | Condition: New
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