I had fitted about 5 years ago a Vaillant eco tec plus boiler in the downstairs utilty room.When the downstairs shower is running the boiler will not supply the upstairs boiler or even the kitchen tap with out effecting down stairs shower. it only appearscapable for running one shower at a time. Can anyone give me some advice on how to improve this?
vaillant eco tec plus
- Thread starter fcman
- Start date
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