The offer is restricted to high-volume low-speed (HVLS) fans with a minimum diameter of 12 feet for use in warehousing-type buildings with a minimum of 22-foot ceilings. Warehousing-type of buildings refers to the space temperature setting, on average 69 F. Space must be heated by ceiling-mounted, natural gas forced-air space heating systems, including unit heaters. In addition, this offer is restricted to heated enclosures (space affected by the destratification) that are floor-level thermostatically temperature-controlled and space heating system located at roof level. Not eligible where other mechanisms that combat stratification, such as radiant heaters and/or high velocity vertical throw unit heaters, are present in the influence area where destratification fan will be installed. Buildings operating with night setbacks do not qualify. Installation must follow manufacturer recommendations sufficient to effectively de-stratify the entire space. The number of fans eligible to receive an incentive is based on facility size through square footage, as determined by below calculation.
* The number of fans eligible for utility incentive should not exceed:
12 ft. diameter fan (whichever is less):
- Max. number of fans installed for heating mode, or
- Building length (ft.) x building width (ft.) x 0.75/2,900
14 ft. diameter fan (whichever is less):
- Max. number of fans installed for heating mode, or
- Building length (ft.) x building width (ft.) x 0.75/3,947
16 ft. diameter fan (whichever is less):
- Max. number of fans installed for heating mode, or
- Building length (ft.) x building width (ft.) x 0.75/5,156
18 ft. diameter fan (whichever is less):
- Max. number of fans installed for heating mode, or
- Building length (ft.) x building width (ft.) x 0.75/6,525
20 ft. diameter fan (whichever is less):
- Max. number of fans installed for heating mode, or
- Building length (ft.) x building width (ft.) x 0.75/8,056
22 ft. diameter fan (whichever is less):
- Max. number of fans installed for heating mode, or
- Building length (ft.) x building width (ft.) x 0.75/9,748
24 ft. diameter fan (whichever is less):
- Max. number of fans installed for heating mode, or
- Building length (ft.) x building width (ft.) x 0.75/11,600