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Should I tie into the ERV or just vent outside to increase bathroom ventilation?

Our bathroom currently only has an intake connected to the Energy recovery ventilation (ERV) to remove humidity, and it's completely inadequate even for a quick shower. Should I install an exhaust fan ...
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4answers
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Are there efficient ways to provide combustion air to heating appliances?

In a previous question we established that there probably should be a vent between my utility room (which opens into the kitchen and living space in general) and the outdoors (in my case the attic, ...