Extremely humid and hot summers (100% moisture and 35˚C) require a good air conditioner to survive and keep the body cool. The cold winters require a good boiler to heat up the beloved and revered ofuro bath. Every house has at least one of these devices attached to them. One for each room that needs one, so the amount can increase steadily according to the size of the building.
64 air conditioner units in two sizes and 32 boiler units.