On Sun, 14 Jun 2009 21:22:15 -0400, "John"
wrote:


"Wes" wrote in message
...
"John" wrote:

You dont want to have your iron chill down so it takes a half a day to
bring
it up to a reasonable temp. I would try to seal up all the air leaks and
then set the thermostat to hold 45 deg. while you are not there. Think of
those machines as big ice cubes if they get cold. A hot air propane heater
will make your machines sweat and rust if it vents into the room. The
high
efficiency gas furnaces that put out water are real nice if you can get
one
cheap.


I'm building the room very tight and I'm using electric heat to keep any
moisture issues
from happening. Since there is nearly two tons of metal in the room, I'm
not going to be
able to cycle too low.

I've been playing with a couple calculators on the net and it looks like I
could keep it
at 70F for 240 bucks a year if I plugged the right numbers in.

Wes


Putting a small fan in the ceiling to blow the hot air to the floor will
reduce the heat losses in the ceiling.

Perhaps even more than a small fan. A ceiling fan made a huge
difference in my garage/shop which I keep above 60 year round in MN.
Figure your ratio of wall area to ceiling/roof area: I'll bet you'll
find that the roof has significantly more area so you don't want hot
air up there.