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666 Bandit · 27 January 2008, 04:53 AM

if you read that patent & understand the design it is pretty clear that it is not for an automatic HRV. It even explains how the valve is inoperable when it is screwed in. This is not the HRV used on the SD.

27 January 2008, 04:53 AM	#32
666 Bandit Member Join Date: Dec 2007 Location: Florida Posts: 49	if you read that patent & understand the design it is pretty clear that it is not for an automatic HRV. It even explains how the valve is inoperable when it is screwed in. This is not the HRV used on the SD.