Hearth Cabinet - The Hearth Cabinet™ is a ventless fireplace system that burns a patented alcohol fuel cartridge. You don't need a gas line or a chimney and it does not use electricity - there is a real flame but there is no smoke. Hearth Cabinet™ burns an odorless, non-toxic isopropyl alcohol gel. Gel fuels are the cleanest burning fuels you can find for a fireplace. Also the aluminum gel cartridges can be recycled, making Hearth Cabinet™ an eco-friendly alternative to a wood-burning fireplace.