Excellent heating and efficient wood furnace. Plenty of screws and sheet metal for installation. Heavy unit to move down basement steps. Would have been nice to remove rear sheetmetal and fan for tight clearances but it looked a bit difficult. Overall I am happy with it as it heats my house better than my older Russell furnace. Pre-burn outside to burn paint, to avoid smells or do it when you can open windows. I put it into use that same day we got it into place.