Shares & Saves. Save. The British thermal unit, or BTU, is a unit of energy, one that is used to quantify the heating and cooling power of, water heaters, air conditioners and similar equipment.hares & Saves. Save. The British thermal unit, or BTU, is a unit of energy, one that is used to quantify the heating and cooling power of, water heaters, air conditioners and similar equipment.
Winter squash includes acorn squash, spaghetti squash, butternut squash, delicata squash, hubbard squash, kabocha squash, turban squash, sweet dumpling squash, and of course all types of pumpkins. Prepared winter squash also freezes well and keeps for about 6-8 months in the freezer.
of 15. Hubbard Squash Hubbard & Butternut Squash. Laurence Mouton/Getty Images Hubbard squash can be some of the largest winter squash you'll find (besides field pumpkins, that is), the smallest ones still dwarf the largest of butternut squash. They are slightly tear-shaped with dark green to pale grayish blue skins.