The SUF range direct-fired gas water heaters provide a new level of economy and efficiency in hot water production. All models are fully condensing and incorporate a burner modula- tion giving up to 97% thermal efficiency and are designed to operate as a room sealed system in both vented and unvented commercial / industrial applications. With vertical or horizontal concentric or parallel flue kits, up to 100 meter in length, the range is particularly useful where extensive conventional flues are either not possible or practical.

• Fully room-sealed condensing high-efficiency warer heater 97% (gross)
• Automatic gas/air premix burning system including burner modulation
• Delivered with low-maintenance inert anodes
• Well below the maximum NOx emission in accordance with the ErP regulations (September 2018)
• Quiet operation <45 dB(A)
• Temperature setting from 40°C to 80°C with use of week timer
• Flexible flue options, up to a 100 meters
• Easy fault diagnosis and computer controlled digital week timer
• Programmable for legionella purge cycle