"I always crack a couple of windows before retiring for the
night, regardless of whether I'm using the heater. This cuts down greatly on
condensation."

Ditto. It's just a good practice. The combination of heater and effective
sleeping bag/bed-clothing, will keep most people toasty down to below "0".
If I leave the pop-top down, then I always crack the sky-light vent too.

Bob Stevens
'87 Syncro Westy

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