"Chris Hogg" wrote in message
...
On Thu, 9 Dec 2004 15:31:43 -0000, "Amber Ormerod"
wrote:

Is there anything I can do to reduce condensation over the Winter? I am
presuming next year I should get a high level vent fan sorted out. I have
part of the greenhouse heated for the cacti and the auto vents are just
shut
all the time - I have tried to adjuust them without any luck. I do keep
the
doors and vents open for as long as I can in the day but its still so
damp
in there ;-(

Thanks in advance
amber

email happy at dryad dot org

What form of heating do you use? If it's a paraffin heater, remember
that, as a rule of thumb, every gallon of paraffin you burn puts a
gallon of water into the atmosphere, much of which will condense on
cold surfaces. If you can't adjust the auto vents, try propping them
open a little with a block of wood.


I have a 10x10foot greenhouse aprox 1/4 is bubble wrapped for the cacti and
has a electric fan heater. The rest of the greenhouse is not heated. I have
a vent oposite the door and auto vents in the roof which are not opening at
all atm. The days here (Hampshire) have been very damp for at least 1/2 the
week. I leave the door open for ventilation but thats frequently doing
nothing as its damp outside too. I have had a few days warm enough to dry it
all out, but on a whole I have things like wooden plant stakes going mouldy
already! I have some of the anti damp crystals in the cacti section, but
there is not really a problem in there. I wasn't sure if the crystals woudl
work out too expensive or do nothing in that space?