Our NR66 series is perfect for apartments, condominiums and townhouses with 1-2 showers. When properly sized, they provide an endless supply of hot water and are designed to be more efficient than traditional tank-type water heaters. These compact heaters will save space without compromising power. Built-in features include safety lock-out, freeze protection, and high elevation adjustment. PVC CANNOT be used for venting.

These units also offer several innovations:
Safety lock out – Default max. 120 degrees (refer to owner’s manual for higher temp)
Standard burner – High performance single flame burner.
Fully modulating burner – Automatically adjusts burner level accordingly.
Turbo Flow – Up to 6.6 GPM @ 35° temperature rise (5.3 GPM @ 45° rise).
Direct ignition – No standby pilot light.
Thermal fuse – Automatic overheat protection system.
Resin coated PC board – Increases durability and protection from elements.
Automatic air regulator – Monitors internal temperature/maximizes burner efficiency.
Resin coated PC board – Increases durability and protection from elements.