Thermal Equalizing Fans

Create more comfortable environment while saving energy costs

 

  • Silently and effectively equalizes ambient temperatures
  • Reduces cold and hot spots across building
  • Reduces condensation, equalizes humidity
  • HVAC systems work less to reach desired comfort level
  • Energy efficient design means low wattage consumption
  • Transfers wasted heat energy to floor mass as reserve
  • Easy to install; 1-3 year ROI
  • Low maintenance system with manufacturer warrantyAir Pear Thermal Equalizing Fan Logo
  • May qualify for energy rebate in your local area

category blue arrow115V Thermal Equalizing Fans

Keep workers happier and more productive by providing consistent ambient temperatures throughout your facility. These fans use 115V power supply with outputs up to 5450 cubic feet per minute.

category blue arrow230V Thermal Equalizing Fans

Circulate air throughout your facility with these fans that operate on 230/277V power supply with outputs up to 5700 cubic feet per minute.

category blue arrowThermal Equalizing Fans for 50' - 100' Ceiling

These fans are specially designed to throw up to 100' of columnar air current. Especially useful in warehouses, distributions centers and manufacturing facilities where ceilings range from 50' to 100' high. Available in both 115/120V and 230/277V AC.

Energy Rebates

These thermal equalizing fans qualify for federal tax deduction 179D if all conditions of the deduction are met. See information on the tax code concerning this deduction at: 179D Tax Deduction Information (332KB, opens in new window).

Additionally, your thermal equalizing fan purchase may qualify for energy rebates from your public utility. Contact local energy savings programs and government entities for assistance with energy audits and documents to qualify your purchase.

Xcel Energy offers rebates in Colorado, Minnesota and New Mexico for these fans. Rebate application forms available here (141KB, opens in new window).

In other states, you may qualify under a custom energy efficiency designation that will require pre-approval of the rebate application prior to installation. Be prepared to provide the information in this checklist: Energy Rebate Data Checklist (220KB, opens in new window).

Air Temperature Gradients

 Stratified Air
Temperature gradients occur when air is not moving sufficiently to keep rising hot air mixed with descending cool air, creating warmer temperatures at the ceiling and cooler temperatures at the floor, with temperature variations equal to about .75 degrees per foot of rise. This means there could be six degrees difference from the floor to an 8' ceiling. In a 40 ft ceiling room, temperatures can vary 30 degrees or more!
Thermal equalizer fans destroy those temperature gradients by creating a vertical air flow down toward the floor while drawing air from the ceiling area. As air is forced downward, it creates vortexes that flow outward from the downward column of air, mixing with each level of temperature gradient along its way to the lowest level. At the floor level, air is forced outward and up again, circulating from the walls toward the center of the air flow, continually mixing air temperatures. Air Flow Chart
When air is mixed well, heating and cooling costs go down due to less energy being used to warm or cool uncomfortable areas, plus the effect of creating a temperature sump in the floor and ground below the bulding. This temperature sump adds warmth during cold spells and cools a building during hot cycles through radiant energy given off by the floor and ground beneath, allowing the stored warmth or coolness to assist your cooling and heating systems. That radiant energy seeps back into the building, allowing the stored warmth or coolness to assist your cooling and heating systems. Temperature Differential
Even during hot summer weather, equalizing temperatures in a building leads to energy gains due to the absence of "over-cooling" in order to cool non-directly cooled areas. Without temperature equalizing fans, workers may be very cool in some parts of the building, while others on the sun-side or upper levels of the building will be very warm - making work conditions uncomfortable for all and leading to lower productivity, let alone the extra energy expense in trying to cool off those warm zones.

By equalizing those temperatures, HVAC equipment doesn't have to work as hard, workers have consistent temperatures from zone to zone, and energy costs go down while productivity goes up.
Temperature Differential
Savings Chart