Noritz’s EZTR40 residential condensing tankless water heater is designed to replace a conventional 40-gal. tank-type water heater for two-bath residences in warm-weather climates. Top-mounted water connections allow for quick and easy reconnections without the need for new plumbing. The unit’s flexible polypropylene tubing threads directly through the existing vent, and it uses the same 1/2” gas line as the old tank unit. The EZTR40 measures 18.3” wide by 27.2” high by 9.4” deep and weighs 50 lb.