.........Oh boy :) Now I'm all mixed up :) I'm thinking regular hive + transparent + outdoors , Finski - your hive ?
p.s. and airtight :)
My hives have solid bottom. Now I make new bottoms so that they slant forwards. The front is 4 cm high and back is 1 cm high.
Then I have 15 mm hole in front wall. Moisture moves out via this and bees get air when main entrance is blocked.
The inner cover is not airtight because I open it to trickle my bees.
Hive winter well in open air, better than in some cellar or under snow.
.Just now winter air on my hives is about -10C to -15C. Not bad- It is a common weather 3 months.
More important is the spring when bees start to make brood. Then warm hive is a big advantage.
I have had this system 30 years and I am not going to change it.
In have heated my hives 8 springs with electrict heating. It is 2 months when bees start brooding up to summer.
It gives extra boost.
But you have in Maryland really warm. You need not to be worried about winter.