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https://youtu.be/INGGG6fb62A Panasonic Energy Recovery Ventilator 100 ERV Intelli-Balance(TM) 100 is well suited for single family homes and multi-family units. It is a customizable, powerful, high efficiency Energy Recovery Ventilator (ERV) that's designed to help you meet ASHRAE 62. 2 ventilation requirements....
https://youtu.be/HmZHU1YEsNY Zoomlock or RLS versus Brazed Fittings and Joints https://youtu.be/-h-h_s9heiU
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