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Buderus 2109 again...

kcoppkcopp Posts: 3,030Member
From time to time I see a post here about needed a replacement for a HS2109 boiler control.
Now I have an issue w/ the one and only one if these I have ever installed.
I must say I am quite dissappointed has no direct replacement for this other than the 2107.

IF you use the 2107 do you need to use the outdoor reset feature?
Getting a sensor through to the outside on this building is a difficult undertaking and is not needed.

Thanks. kcopp


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