Hello everyone tonight

Good replies--just what I wanted to hear--I thought that glass had been produced earlier that 1400, but wasn't sure--so that puts that part to rest for now, unless someone else wants to further this conversation.

Talking about open fireplaces, at UCV I had my headquarters on site in the hired man's house, which was a open one room log building with and upper floored area, it was heated with a large open stone fireplace, the chimney I am sure one could crawl up it was so large, but my goodness would it throw alot of heat, it always amazed me, I believe like KEN says the fire radiates out much of the heat due to the openess, meanwhile directing the smoke upwards

Thanks for this conversation

enjoy everyone