A tube cleaning apparatus has a handheld brush positioner and a control system for controlling operation of a drive unit, wherein the control system is operable to provide current to a drive motor to cause the drive motor to operate the drive unit to extend or retract a flexible shaft, sleeve and brush; and to receive a stop signal from a stop sensor to terminate retraction thereof.

An automatic condenser cleaner has a net, a first roller, a second roller, and a first brush. The net is placed in front of the condenser to filter an airflow onto the condenser and the net moves between a first roller and a second roller, with the first brush brushing to clean the net while the net moves between the first roller and the second roller.

An automatic condenser cleaner has a net, a first roller, a second roller, and a first brush. The net is placed in front of the condenser to filter an airflow onto the condenser and the net moves between a first roller and a second roller, with the first brush brushing to clean the net while the net moves between the first roller and the second roller.