Uncle Monster wrote:

sal wrote:
Hi group. Does anyone here have an fresh air make up system for their
furnace that has an electrically controlled damper ? I know in the past
home owners just ran an air duct to the outside, but this caused an cold
basement.

What you really need is an energy recovery ventilation system. Some of
them can be quite expensive. Here's some information on the subject.

An average US house naturally leaks about 200 cfm,
so most of them don't need ERVs.

Nick