I would only recommend an ERV for newer houses. On older houses, an ERV running 24/7 is just going to pull all the heat out of your house and cause your energy

I would only recommend an ERV for newer houses. On older houses, an ERV running 24/7 is just going to pull all the heat out of your house and cause your energy bills to go up. Best would to get a blower door test run and see what your ACH50 rating is before considering one.