Canary_Yellow
Journeyman Pro
Thanks Stu, where would the 210ltr tank have to live?! Near the boiler? or in one of the loft storage corners? Could it live in the garage which is attached to the Utility room, which is where the boiler is!? can it live in a cold place?
We have exactly that set up. Unvented cylinder in the garage and boiler on the other side of the partition wall in the utility room.
For efficiency they should be near to one another I think, and actually having the cylinder in the garage is probably best as that is likely close to where your mains water comes in which is what provides the pressure.
Worth getting a heating engineer in to properly design the system taking into account factors such as the mains water pressure to your house.