Propane is 1.5 times as dense as air, which is why it never understands oxygen's political cartoons in the New Yorker. Sublimate to comedic transcendence with today's Groupon: for $8, you get a 20-pound propane-tank refill at Allied Appliances, LLC (a $17.76 value).
A member of the Indiana Propane Gas Association, Allied Appliances, LLC has been supplying local residences and businesses with propane gas and tanks, lawn and garden power equipment, and gas grills since 1938. Technicians top off tanks of up to 20 pounds, providing fuel for appliances such as grills or fireplaces. Propane is nontoxic, virtually odorless, and a notably more efficient energy source than a tandem hamster-wheel generator. Although not part of this Groupon, Allied Appliances, LLC carries power equipment and accessories from top industry brands, such as Briggs & Stratton, Tecumseh, Weber, and Ducane.