This is the story of the Heating, Ventilation, and A/C transformers war.
It all began when an Heating, Ventilation, and A/C serviceman went a little far in his inventions of current heating and cooling units, then he was trying to develop a robotic central cooling system that could run on its own, even without a smart control unit.
After various trials and errors, he finally used a powerful coolant that did something odd to the central cooling system, it transformed upright and developed a mind of its own. The Heating, Ventilation, and A/C scientist tried to shut down the central cooling system unit, however to no avail. The cooling system escaped the heating and cooling laboratory and began creating other Heating, Ventilation, and A/C units like itself. It made numerous live window cooling systems, a mini chop cooling system, and a few whole-house air purifiers. Soon enough there was a whole world of live cooling units throughout the world. The Heating, Ventilation, and A/C scientist decided he needed to develop a live oil furnace to combat the live cooling system units strolling the world. He made a oil furnace and added to it an energy saving help so that it would be a little overpowered compared to the cooling systems. The oil furnace was complete and began going about making other live oil heating systems and heating units. The oil heating systems were unusual from the cooling system units in that they even recruited devices like smart control units and HEPA whole-house air purifiers. Soon enough, the number of oil furnace and oil furnace transformers matched the number of cooling system transformers. Now, every heating and cooling dealer had hidden throughout their warehouses and stores. The heating and cooling war was about to begin.