Well I own an exception to the rule because I have an EPA furnace That has a grate on the bottom ( the floor is mostly firebrick lined) that leads to the ash compartment below . ( it should be noted the regular caddy have this also ) This area has a drawer with a gasket and it's handled . Its a excellent design .if you click on my profile picture you can see what I'm talking about ..I rake the coals forward so they are positioned above my grate area then I grab my ash handle and open that drawer out about a 1/4 inch . This allows under air in and it turbocharges those coals like crazy . Works wonders on cooking down a coal bed or a fresh morning recharge of kindling . All EPA stoves should have this design instead of a recessed plug and cumbersome ash drawer .the coal bed holds a lot of heat if it gets air to it , shame on the man who removes them and throws them outside