"Christian McArdle" wrote in message
t...
I know - done to death.. A customer has asked me this question. I have
come
up with the following list. Any other thoughts - sensible ones.

As the cylinder needs replacing, you'll also need to explain the relative
benefits of different storage systems.

1. Unvented cylinders.
2. Heatbanks
3. Conventional gravity fed.

Correct. A heat bank may the perfect solution to their requirements and
functionality, space and cost.