The Energy Star-rated NRC98, the newest addition to the Noritz ecoTOUGH Series of gas-fired residential condensing tankless water heaters, has an Energy Factor of 0.93
The CleanAlert FILTERSCAN air filter clog detector monitors differential pressure in an HVAC system and provides visual, audible and remote alerts when a filter needs servicing
The tekmarNet thermostat 557 with tN2 house control 406 is a touch-screen thermostat that provides advanced tempera-ture control for systems with up to four stages of heating and two stages of cooling.