Non-Condensing Water Heaters

500 MBTH to 4,000 MBTH
Indoor and outdoor models
84% thermal efficiency at full rate
Cat I/IV venting required (depending on the model)
Cast iron/Bronze (Brass opt.) headers with copper (cupronickel opt.) finned tube heat exchanger
120°F minimum inlet water temperature
150°F maximum setpoint temperature
Electronic modulation up to 7:1 turndown
Cascade control of up to 4 units
VERSA IC® Control Package with Built-In Outdoor Reset Function, LCD Display
Diagnostics Center with History, English, no codes
0-10 VDC BMS Interface
Small footprint

300 MBTH to 850 MBTH
Indoor and outdoor models
95% efficiency condensing (up to 99% at part load)
Cat IV venting required
Small footprint
Top side water connections – allows side by side installation
316L welded stainless steel heat exchanger and copper plumbing
Modulation up to 5:1 turndown
50°F Minimum inlet water temperature
On-board diagnostic center, English, no codes
Built-in cascade function for up to 4 boilers
VERSA IC® control package