I have taken photos of what I've done up to now. The greenhouse measures 2mx1m and I have manage to make about 2.5sq.m.of space for the plants excluding the floor space. I was using a little frost protector to keep the chill off but have gone to Bio Green 4 which is a single funnel parafin heater. With the gh being so small this is more than adequate. I've added a link if anyone wants to have look at my feeble efforts. You can see the construction of the gh earlier in the year on another post - "It's small but the plants seem to like it." (Haven't yet worked out how to do a link for that one 
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