Weekly Product Gallery: Weil-McLain, METUS, General Pipe Cleaners, Cleaver-Brooks, LG, U.S. Boiler

This week's gallery spotlights two heat pump water heaters (carbon dioxide refrigerant or inverter compressor), two indirect water heaters (fully passivated or thermoplastic-lined), a clog-busting drain cleaning machine and a condensing fire-tube boiler.