Most of the cost is install. A basement glass block window with a dryer vent (under $100 for a pro to install around me) makes self installing easy and profess

Most of the cost is install. A basement glass block window with a dryer vent (under $100 for a pro to install around me) makes self installing easy and professional a few hours of labor. I've seen new ERV units under $1,000 and some pop up used on Ebay for great prices.