Unread postby deepesh » Thu Jun 06, 2013 1:49 pm
I think Wojtek is right. By using thermocol you will insulate the three walls. The top will have the warmest air and therefore the most humid so there will be condensation there whenever there is any significant heat exchange. Similarly the front being uninsulated will be a site of heat exchange and this will result in condensation. If the room is cooler than the inside the water will condense on the inside of the front glass, if the inside is cooler than the room the water will condense outside. If you keep humidity high like 80-90% condensation will occur and you don't want it on the front glass. A curtain of low humidity air flowing along the front glass will keep the condensation off. Probably that's why Wojtek mentions the fan blowing fresh air towards the front glass.
I think Wojtek having kept frogs will be able to guide you better.
News from The North Indian barbecue is...
Browning outside, softening inside.