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ChasBean1, I have described the observations to the best of my abilities. When I balance the ERV, the house depressurizes. My obversation of this was backed up with the fact that smoke from my stove pipe trickles into the living space unless I unbalance the ERV to pressurize the house. In...

Yes, I have taken that into account. I have balanced under both windy and ambient conditions with the same effect. I have tried flipping the supply and return and the outside hoods just to entertain myself. All scenarios the house balances negative and I can feel cold air leaking out of...

The stove is a walltherm gasification boiler . It has a dedicated 5” air intake. It is a natural draft stove so it has no power source. The Venmar unit has no way to dynamically balance unfortunately. But I have seen that the zhender hrvs do have an auto balance feature.

Thanks, I have thought about this. THe other option I have thought about is to use a zone damper to control the amount of air the ERV supplies. I would balance the ERV with a zone damper on the supply when it is partially closed. I would use a switch to open the zone damper to allow more air...

I have a x24ERV from venmar installed in a house where the blower door test measured about 0.3 ACH50. The house is really air tight. I know that the fan tables with the unit provide a way to measure air flow across the core to facilitate balancing fresh and stale air flows. my installer and I...