Thing is with cooler climes Eric is one can use all variations of warming and _still_ be uncomfortable, same goes for bees I reckon.
However when it's hot the gear can come off and one can be quite comfortable, I write in my boxers, on the verandah, for a very pleasant 28C day ;-)))
The bees are on a small flow and going like the clappers, loving it!!
The waft of fresh honey being capped fills the air down the back, happy days indeed! :-)
Cheers.
Bill