THE NCC1991 TANKLESS WATER HEATER offers maximum inputs of 199,000 Btu and delivers an efficiency rating of 94%, enabling it to meet the hot water needs of larger residential applications. Using a quick connect cable, two units can be coupled to provide an input of nearly 400,000 Btu, with a turndown ratio of more than 36 to 1. The wall-hung unit requires less than 3' of space.      
Noritz
CIRCLE 107 on inquiry card