When space is at a premium, you can count on our wall-hung iQ251 units for superior performance and reliability. Ideal for highly variable applications using potable hot water, these innovative on-demand, water heaters provide 96% thermal efficiency and are constructed for maximum durability – even in the most demanding commercial applications
iQ251 Key Features:
Masterless Cascading – Cascade up to 10 units for 2,510,000 BTU/ hr capacity for larger applications. Eliminate single-point failure with our patented Masterless Cascading technology. If one cascaded unit is offline for servicing, all other units regroup and continue to operate.
Eliminate Mixing Valves & Lower Legionella Risks –With no storage tanks, there’s a lower risk for Legionella growth. By eliminating the need for mixing valves, this feature also reduces their associated unreliability and costs.
Full Modulation – Smart units deliver maximum BTU/hr input when needed and zero BTU/hr the rest of the time.
Low Gas Pressure Operation – System requires very low gas pressure to operate, down to 2.5” WC.
Common Venting Capabilities – The iQ251 units transform common venting into smart–common venting. Accommodates 3” PVC exhaust venting up to 130 feet (power vent).
ASME-HLW Compliant – Suitable for applications managed by engineers, specifiers and contractors.
Factory Supplied Strainer – iQ251 units deliver debris-free inlet water to the system.