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buffalobillpatrick · 04-23-17, 07:08 PM

Outdoor Furnace Supply has 8"x8" water/air heat exchangers with 1" copper ports.

I would guess stacking about 4 of them would work

My HRV has 5" round ports

04-23-17, 07:08 PM	#11
buffalobillpatrick Master EcoRenovator Join Date: Mar 2014 Location: Florissant, Colorado Posts: 599 Thanks: 814 Thanked 59 Times in 55 Posts	Outdoor Furnace Supply has 8"x8" water/air heat exchangers with 1" copper ports. I would guess stacking about 4 of them would work My HRV has 5" round ports