Opening windows requires more fuel at the plant, regardless of the number of
loops.

Christopher A. Young
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"chaniarts"
wrote in message ...
On 11/15/2012 2:03 PM, DerbyDad03 wrote:


I think I'd stick with opening and closing windows which only impact
single apartments, or even single rooms within each apartment.

multiple loops. they're not all on the same loop. your example doesn't
hold up.