What is heating and ventilating?
A heating and ventilating system combines the functions of both space heating and make-up air in a single unit. Space heating involves heating the air that is in a given space and recirculating it. In a make-up air application, outside air is heated and brought inside to provide fresh air to replace any air exhausted from a building. A heating a ventilating system is designed to provide both functions to give maximum flexibility for just about any application. What is Make-Up Air Heating? This HVAC application involves taking outside air, heating and conditioning it to replace air exhausted from industrial or commercial buildings. The Need for Make-Up Air Air exhausted from industrial or commercial buildings must be replaced. If provisions are not made for make-up air, there will likely be air starvation creating negative pressure within the building. This negative pressure, in turn, causes: outside air infiltration and cold drafts; down or back drafts in heating equipment flues, venti
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