In most large buildings, heaters are mounted overhead so as to not interfere with the space. This creates a heat gradient differential of 10 - 20 degrees Fahrenheit from floor to ceiling.
Our fan family provides an efficient and cost effective alternative to cooling environments where air conditioning is not feasible or can be unhealthy. This is especially true when non-disruptive cooling is desirable to improve comfort for the interior environment.
Envira-North fans and Hurricane™ Turbines work in conjunction to provide ideal and efficient ventilation.
The economic benefits are still what motivate managers to purchase our products. To gain a better understanding of the potential savings it is best to analyze the variables. Take into consideration the size and height of the space, r-values of roof and walls, temperature set point, delta temperature, exhaust rates, number of heating days, efficiency of heaters and the cost of heating.
Our technologies make for a more comfortable interior environment for the occupants of the structure. When the occupants of the structure are comfortable they are more productive. Our products have been able to eliminate excessive heat breaks during the summer months and decrease the amount of days lost to heat. During the winter months, occupants are warmer resulting in higher efficiency.
Glossary of TermsAirfoil Terminology
|Stall||Spanwise Pumping||Tip Stalling|
|Reduction in the lift coefficient generated by an airfoil as angle of attack increases. This occurs when the airfoil's critical angle of attack is exceeded.||The primary cause of of efficiency loss in all rotating systems.||When a wing tip stalls before a wing root.|
|Hot air rising, creating a heat gradient differential from floor to ceiling.||The elimination of stratification.||This is the process of supplying and removing air through an indoor space by natural driven means. there are two types of natural ventilation; wind driven and stack driven.|
|Constantly moving large masses of air (gently) throughout the space, without disruptive breezes negatively effecting the functioning space.||High Volume, Low Speed, refers to the Altra-Air Fans's ability to move a high volume of air, while operating at a very low speed; a classification of fans.|
Terms of Measurement
|Cubic Feet per Minute is a measurement of airflow. Conversion factor for cfh to cfm is 0.0166667.||Litres per Second is a measurement of airflow. Conversion factor for m3/h to l/s is 0.0277778.||Simply refers to the temperature of the surroundings.|