Balancing an HRV
Our HRV is installed, the ducting sealed, and the wall/ceiling diffusers are in place. I still need to balance the system so i armed myself with a couple of flow grids and a magnehelic gauge.
The balancing equipment seems somewhat straightforward (i hope) but my question is about the diffusers: where do i begin the balancing procedure? with the diffusers off? on but fully open? on but half open?
here are 6 diffusers: 2 in the crawlspace, exhausts in the kitchen and bathroom, and supplies in the bedroom and living room…thanks again