This type is cheaper to construct but deteriorates much more quickly. Escalating energy costs dictate that adequate insulation be used to keep heating and ventilation costs down. Ventilation Most barns utilize a negative pressure system of ventilation. Exhaust fans remove interior air, creating a partial vacuum which in turn draws outside air into the building. Fully integrated computer controlled ventilation systems which control intakes, heaters, and exhaust fans are becoming common.
Heating There are many types of heating systems available.
The black pipe acts as the radiator. Hot water heating is more expensive initially than conventional forced air, but it is efficient, does not require filtration, does not interfere with the ventilation system, and distributes the heat evenly. Insurance costs are generally lower with hot water heating. Small forced air furnaces are often installed in existing barns as a supplemental heat source. The primary advantage of these heaters is low cost.