"Ed Sirett" wrote in message
news
On Fri, 27 Jan 2006 09:00:12 +0000, john wrote:


"Ed Sirett" wrote in message
news
On Fri, 27 Jan 2006 08:25:54 +0000, PM wrote:

I need to drain down the cold water tank over the weekend. My CH is a
gas
boiler on a basic on-or-off timer and feeds both the rads and the 3
year
old
indirect HW cylinder.

If the HW cylinder empties, will it be damaged by running the CH?

No.



Is PM sure it isn't a Primatic? Would this change the response Ed?

It would but the cylinder is only 3 tears old - can you still get
Primatics?

Yep. All the big cylinder makers make them. I can't see the point in them.
Disadvantages are too many.