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.
Like all members of the gourd family (which includes pumpkin, melon, and cucumber), butternut squash is technically a fruit because it contains seeds. Cut into its pale, yellow-beige hard skin, though, and you'll discover a vibrant flesh that's much denser than that of its relatives.ost winter squash is available late into the fall. Store whole butternut squash in a cool, dry place (not the refrigerator) with plenty of ventilation; it should keep for up to three months. Cut squash will stay fresh for up to a week, wrapped, in the fridge.