Hello,
Currently installing the DHW parts for a Rayburn 216SFW boiler (Solid Fuel).
Using the installation manuals and Document G / Document J of the building regulations I still cannot find answers to some queries I have.
It is a gravity system on 28mm, <6M flow & return lengths.
210L vented indirect cylinder.
1: Is there a minimum F&E tank size?
2: Is there a specific material the F&E tank must be constructed of?
3: What is the minimum static head for the Primary circuit?
All I can establish is that it is to be sufficient to prevent sub atmospheric pressure at highest point when pump is in operation.
4: I have been told that the vent pipe must rise continually with no joints. Is this correct? This is currently infeasible if the cylinder remains in the location of the existing (vented, direct) cylinder whose vent travels nearly 10m (never dropping but some parts very close to horizontal as it moves around the room).
Any advice would be greatly appreciated!
Currently installing the DHW parts for a Rayburn 216SFW boiler (Solid Fuel).
Using the installation manuals and Document G / Document J of the building regulations I still cannot find answers to some queries I have.
It is a gravity system on 28mm, <6M flow & return lengths.
210L vented indirect cylinder.
1: Is there a minimum F&E tank size?
2: Is there a specific material the F&E tank must be constructed of?
3: What is the minimum static head for the Primary circuit?
All I can establish is that it is to be sufficient to prevent sub atmospheric pressure at highest point when pump is in operation.
4: I have been told that the vent pipe must rise continually with no joints. Is this correct? This is currently infeasible if the cylinder remains in the location of the existing (vented, direct) cylinder whose vent travels nearly 10m (never dropping but some parts very close to horizontal as it moves around the room).
Any advice would be greatly appreciated!