Heat pumps, which utilize the energy of an air-conditioners to supply both heating and cooling for a room, are the traditional way to offer comfort to small businesses. In most cases, they connect directly to a central cooling and heating system. While some small business owners opt to have their systems provided by a heating and air conditioning (HVAC) company, this usually involves a significant initial outlay. In many cases, a commercial HVAC system also involves the purchase of a large array of energy efficient window fans and air conditioning units. Although these options may seem attractive to some businesses, they can be expensive and take up valuable space.
One alternative often used by small business owners is to have a unit that allows heat or cool air to enter the office space while maintaining the temperature outside the building. Typically, these units are attached to a central heating and air conditioning system. A roof mounted unit connects to the building via the central vents, while a separate unit has a single indoor unit attached to the central vents. This type of unit eliminates the need for a large number of fans and is typically more affordable than a centralized system.
Another option often used by small business owners is to utilize a condensing refrigerant. These units take the place of traditional air-conditioning or cooling units. They typically use refrigerant as a means of storing the heat or cold air needed for the air conditioning system. When the temperature inside the building drops, the heated refrigerant is circulated to the interior of the building and cooled. This results in a low air temperature and the condensing unit converts the heat or cold air into usable temperature by using evaporative heat or convection.