Sun Engineering, Inc. / HVAC Design & Consulting  High Efficiency Gas / Oil Heating Systems, Geothermal Cooling Systems, Indoor Pool Heating and Dehumidifying Systems, Kitchen Ventilation Systems, Clean Steam Humidifiers, Air-to-air Heat Exchangers, Wine Cellar Systems  

Complicated Systems Made Simple, Since 1995
 
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Sun Engineering, Inc.
491 Maple Street, Suite 209
Danvers, MA 01923

phone: (978) 777-7765
e-mail: info@sunengineering.net

  
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HRV - Heat Recovery Ventilator
This device, located in attics and basements, brings fresh air in to the home while exhausting the same volume of air, and recovering 75 to 80% of the heat. It is more efficient and comfortable than opening windows in winter.

  
   
   

 
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