It was windy too! The wind was sucking the heat right through two layers of
plastic greenhouse skin. Both Heaters were running, which means that at 12
degrees plus wind chill, one 168,000 BTU output heater could not keep up
with the heat loss. I suspect if the wind had not been celebrating the
approaching hemispheric Yule (time of greatest darkness) so wickedly the
thermostats would not have called the second heater into operation. I did
not get any alarms but I kept getting up to go check. I could really smell
the exhaust in there and wondered if the wind was forcing it all back down
the flue.

Al
It's always Yule before the solstice.

"Pat Brennan" wrote in message
...
Days start getting longer this week. Happy Solstice to all. Well not
really all, sorry guys down under. Light the fires and party Tuesday. If
the weather doesn't change a fire in the woodstove will do.

10.3 F outside right now, we may still hit single digits before dawn.
Sensaphone called, howling winds had blown open door. Since I was up I
did the pass and found the pump room at -2C. I do not do metric, but I
know anything -C in a pump room is not good. Can you make a living
growing orchids? Oh, its a living alright. You could loose a greenhouse
on a night like tonight. It not good enough to have a good alarm, you
either have to fix the problem or get someone that can before damage is
done. I though it might be good to have a thread of thinks we wished me
knew after that 3 AM call.

This one has come up more than once here.

Oil burners. That red reset button. If after the button is pushed, the
furnace burns for a few seconds and then trips the button again. Clean
the optical eye in the square box. The red button should only trip when
there is not a fire in the box.