The ARMOR water heater from Lochinvar offers thermal efficiencies up to 98 percent and inputs ranging from 150,000 to 500,000 Btu/h. It has a stainless steel heat exchanger, 5-1 modulating turndown ratio, SMART SYSTEM operating control and is CON·X·US Remote Connect capable. The SMART SYSTEM control includes a built-in cascading sequencer for installations using up to eight water heaters, maximizing hot-water delivery. The SMART SYSTEM has a two-line, 16-character LCD display using plain English instead of confusing codes. Other standard control features are a built-in water heater pump control, password security and night setback. Now CON·X·US Remote Connect capable, it can be monitored and managed from anywhere using an internet-capable device. It can be vented using PVC or CPVC pipe and permits direct-vent distances up to 100 feet for both combustion air and vent runs. 615/889-8900; www.lochinvar.com.