Hot Water

Colonists like to have hot baths and showers and don't like cold water, so you must build a hot water tank to store hot water, and 1 of the 3 boilers or a solar heater to heat the water, the tank uses heating capacity just like a radiator. You can control gas and electric boilers by turning on thermostat mode on the hot water tank, it will switch boilers on for 1 hour when the temp gets low saving you money on your energy bills!. An early game low tech option is to place a campfire next to a bath to heat it.