wasted energy / metal / greenhouse gas emissions / fiberglass batts / circular metal flashing / gas-burning appliances / higher energy bills / energy bill / fiberglass insulation / energy bills / gas penetrations / metal frame / metal flashing / fiberglass / metal flues / less energy / metal dam / energy improvements / energy use / energy efficiency / cement / metal scissors / oil-fired furnace / strict energy efficiency guidelines / energy / metal sleeve / /
Organization
U.S. Department of Energy / U.S. Environmental Protection Agency / Freemasonry / Occupational Safety and Health Administration / /
Person
DALE HOFFMEYER / Rim Joists / / /
Position
Contractor / The Family Handyman / heating and cooling technician / /