On Fri, 12 Mar 2004 12:51:20 -0000, "Owain"
wrote:

"Steve Firth" wrote
| N. Thornton wrote:
| How about putting a UPS on the CH? Easier, cheaper.
| and limited to about 20 minutes run time.

You only need a UPS if the supply has to be *uninterruptible*. If the CH is
plugged into a (double pole switched, or unswitched) 13A socket it's easy
enough to unplug it and plug into an inverter+car battery.

Or howabout an inverter plus car battery in the car and it running
(ticking over)? Isn't that what a 'generator' is?

All the best ..

T i m