iRobot Looj
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The claim
The battery-operated iRobot Looj 155 uses rotating rubber paddles and brushes to clean gutters. You climb a ladder to place the device, then use its remote control to control the direction of movement and spin. Moving on flexible treads, the Looj "blasts through debris, clogs, and sludge." You can clean a 60-foot section in "just 10 minutes." We paid $170 for the Looj at store.irobot.com.
The check
We tested it on a 60-foot section of gutter with dry and wet oak leaves and also at a staffer's house.
Bottom line
This robot is not so hot. It flipped many leaves back into the gutter or toward the roof instead of the yard. We dislodged dense leaves or debris only by working it back and forth repeatedly. And it sometimes got stuck. The Looj removed dry leaves from 60 feet of gutter in 15 minutes, but it took almost an hour to clear heavy spring debris from 50 feet.
