"Dave Plowman (News)" wrote in message
...
In article s.net,
Doctor Drivel wrote:
Copper tube boiler of about 70-75% efficent when new. When old
lower.

Care to explain?

Just read again. You can move your lips when reading, I don't mind.

So yet again you ...

...can't understand

snip babble

He just doesn't stop does he. The must be about to lock him up for night.