have fitted eco tec plus 937 boiler with out storage tank as salesman said it woul be ok. however the heating system works fine but does not seem to reat when calling for hot water. any one know why?
I think what dangermouse means is the different sensors and software on the 937 require the back-pack store to be there otherwise it won't work properly.
Actually the 937 works a treat with the back-pack and delivers water much faster that when working in stand-alone '837' mode. Well worth the extra cash IMHO.
If you wanted a smaller boiler, physically that is, why didn't you fit a 837? Which is the same combi but for sensors and software!
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