Drywall, insullation and carpet from 2nd Floor. We filled it to the top on Friday night, then came back Saturday morning and fed it some more. We get our money's worth out of these things. Mary is happy to claim no responsibility for the demise of our third thermostat. Our engineering and construction pal, Milt came by for a tour and to offer his advice on Friday night. While I was a witness to the thermostat crashing to the concrete floor, I was across the room when it happened.