Lehr Propane-Powered Eco Mower

Lehr Propane-Powered Eco Mower Courtesy Clark Campbell Photography/Lehr

Gas mowers belch fumes, but old-fashioned reel mowers lack power. The Eco LawnMower strikes a balance. Its chokeless 139cc internal combustion engine emits three fifths less carbon monoxide than a gas mower and exceeds the Environmental Protection Agency’s emissions standards by 60 percent. A 16-ounce can of camping-style propane lets you mow for up to 90 minutes, 20 to 40 percent longer than the same amount of gasoline lasts in a standard mower. And unlike gas, pre-packed propane canisters won’t leak fuel all over your garage.

From $300; golehr.com