cheers for heads up on gas didnt think to look
seems quite thing but shuld be alrite to staple gun up went skip raiding last night got two great veg/auto cupboards so am thinking measure dimensions then do a template of inside with cardboard put mylar on cardboard then hot glue into place
also just out of curiousoty got my 5" fan put some lead flashing tape over the body has quitened it dwn quite a bit
found old food grade bucket (type with lid)
took drill with half inch bit drill hoels all around top of bucket then
cut a hole out lid mounted fan got it wired up
then 1 bottle of febreeze into bucket top up with water switch fan on hey presto peice of piss odour nuetriliser.There is not a whole lot of air coming out of the fan but I waited an hour or so and my room smells like summer
they sell 100 litre bags for £15 which is better than 5 L for a fiver. even with the postage its worth it if you buy a decent amount - and it keeps well. they do other good stuff too. thats where i get my big pots from