SWA500N Shield 110 Gal. 500,000 BTU Commercial Gas Water HeaterSKU:
Lochinvar Shield SWA500 condensing commercial gas fired water heater with up to 96% thermal efficiency. This SWA500 replaces the older model SNA501-125 and SNA500-125. Shield uses the industry's most advanced stainless steel heat transfer system and sealed combustion technology. Shield features the ultimate water heater control (Smart Control) which makes system setup, service and operation a breeze. Smart Control includes night setback, time clock, alarm contacts, runtime contacts, service mode, and last 10 lock-out codes.