The REZNOR 100MM NON BALANCED VERTICAL TERMINAL 33-54-107-FLUE4 039010012SWNT is a storage tank water heater manufactured by the brand Reznor. This product is designed for use in homes and is part of the category of standard water heaters. With a 100mm non-balanced vertical terminal, this water heater is ideal for providing heating and hot water to a property efficiently. Its compact design and durable construction make it a reliable choice for heating systems in residential settings.