"A heap of stones at a place called the Hot House"

Here's a link: http://library.bridgew.edu/exhibits/BMAS/pdf/MAS-v07n01.pdf
"Sweat Houses in the Southern New England Area" by Eva Butler.
A word new to me "Pesapungganute" appears in the article. Stone pile mention: "Several Mohegan-Pequot deeds mention sweat-houses. Daniel Comstock in 1730 deeded to his son John, land on the Thames River in what is now the town of Montville. It was a piece of meadow, to witt, fresh meadow at a heap of stones at a place called the Hot House." (Land Records, Vol. IX, p. 149, City Hall, New London, Connecticut.)