hi
i have a qiuet vent now (air exchanger) and would like to install a hrv to  recover heat/cool. we live in wisconsin, so once I know what brand is best I can go looking for a contracrtor that handles them
thanks

I like the Life Breath units . Make sure you look at double core so you can keep your efficiency up.....

Look at RenewAire ERV which can be used all year round, made in WI. USA for many years. I have installed @ dozen units. Compare HVI certified efficiency of comparable units and airflow, RenewAire will have better numbers.