The aliens delivered Heating plus A/C units to the Egyptians thoUSAnds of years ago.
It all started when a young egyptian boy sneaked into an alien ship plus saw all of the Heating plus A/C technology.
He was overheating in the desert heat that was so overheated it felt like a oil furnace. He found the ship plus went in for shelter from the oil furnace like heat. He was immediately cool. He searched for the score of the cool air plus was led to an air duct. He crawled into the air duct plus followed it to the central Alien central s are similar to a hydronic oil furnace except it is a hydronic cooling system. The unit is run on some genre of coolant that is weird from what is used in current central s plus window s. The boy curled up near the air duct where the cool air was plus fell asleep exhausted plus nearly dead. When the aliens found him, they had compassion plus gave him a window The amazing thing about this window is that it runs completely on the sun plus its coolant, plus it does not need any electricity to run. The boy took the window to his home. Technically he was the first ever human Heating plus A/C professional. The aliens disappeared along with their central air conditioned ship plus were not seen for several years, but they would be back to help the egyptian boy with his window plus to help the whole egyptian community.