Noritz . WT5-H-7

Noritz Stainless Steel 5" Diameter Venting Adjustable Wall Thimble w/ Termination, 7"-8" Wall, For NC380 Series Water Heaters The Noritz WT5-H-7 is the Stainless Steel 5" Diameter Venting Adjustable Wall Thimble w/ Termination, 7"-8" Wall, For NC380 Series Water Heaters. Noritz has a different goal than most water heater and boiler companies: they want to fundamentally change the way that Americans think about hot water. Noritz recognizes that most Americans think about their water heater in their home or office in terms of capacity more than any other aspect. Thats why their tankless water heaters are engineered from the ground up to impress anyone that uses them as a primary water heater. They will never run out of hot water, and have incredibly high efficiencies, making them a true competitor to the American indirect fired hot water heater mentality.