Generally, I had good results with the heater and gen 1 honda soft doors, soft top, soft mid panel and Honda split windshield. Very comfortable for the 1-2 mile runs to the trailhead with ambient temps at 20F to 30F. Not tee-shirt weather in the cab, but much better than an atv ride before sunrise at 20mph.
We got stuck in a 3ft snow drift on top of a ridge during a blizzard this fall. Snow was level with the top of the hood and headlights were buried. The wind was blowing 20-30mph from the side.
The heater wasn't able to keep up with the air blowing through the cab via all of the gaps. We had snow accumulating in the cab. The nearest tree was 60yds. We broke a rope twice trying to reach and sling a tree to winch out. Luckily, I had bought a synthetic winch rope extension and we eventually got out after an hour of digging and winching.
My point is that we were getting close to needing to walk out. We had just split a cow elk between the 2 of us and packed her out 1.5miles to the sxs. We were wet. Luckily the nearest shelter was only 2 miles downhill. The heater wasn't going to buy us enough time to wait out the blizzard. We contemplated tarping the cab to block the wind, but tarping in 20mph wind seemed unlikely.
I had ordered an Alumalite roof, windshield and full front hard doors last fall. Just now getting everything installed. Kept the honda soft mid panel. Back seat/bed remains mostly open except for roof and corners. I plan to have clear vinyl windows made for the rear sides and back. The Alumalite doors seal significantly better and no gap between mid panel and roof. I would guess air leaks are reduced by 50% and no more split windshield leaking air at 30mph.
My goal is to keep the cab warm enough to survive a storm or an overnight with bellow freezing temps and high winds. I would like to have 6-8hrs to make use of satellite communications and to get help if things go wrong. I believe the cab will be warm enough under cruising conditions for a tee-shirt. I might even need to turn the heater down!
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