"Dave Plowman (News)" wrote in message
...
In article s.net,
Doctor Evil wrote:
Dunno. Natural gas is a very clean
burning fuel

Compared to oil.

And you've snipped the other useful information.

It wasn't useful at all, that is why I snipped it.

so doesn't leave much in
the way of deposits on the heat
exchanger, etc.

Doesn't it?

No.

snip senile made up babble