I personally have a Vaillant Ectoec plus 837.
I only use/fit Vaillant boilers, tad more expensive, but reliability (if installed correctly), second to none imo
Carefree
July 2010
Both are very good boilers, but the Vaillant has the better hot water performance so that is the one I would go for.
Cost About £230.00 inc vat to change. Plus you would need TRV,s fitted to the rads if they do not have them at a extra cost.
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