: I have thought about this. Not sure I can just let it sit for
: another winter!
: At the very least a heavy plastic "tent" and a heater..

I have a framework of two by twos suspended about seven ft high above the strong back area. The frame is about 23 ft long by about 8 ft wide. Over this I have taped one and a half meter wide lengths of bubble wrap. They form a ceiling above the boat and hang down to the floor. The strips are taped up with packing tape to keep the whole thing fairly airtight.

The bubble wrap gives good insulation and let's good light through. I made the tent as low and small as possible while still giving enough room to move around in, so that the space to heat is small.

When the heat gets up the roof and walls, which are weighed down with long planks, bulge outward.

I use two electric radiator heaters to get the temps up, then when I start to glass I just turn the thermostat switches on the heaters till the light just clicks off and I know I won't get outgassing.

When I don't need the heat I lift up the sides and throw them onto the top of the frame. Don't even know it is there.

Et