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.

Specifications :

• Outdoor Unit Dimensions : 20.5" (H) x 13.8" (W) x 6.7" (D)
• Gas Consumption : Min. 15,000 btuh Max. 140,000 btuh
• Capacity Range : 0.5-6.6 Gal./min.
• Energy Factor : 0.83
• Thermal Efficiency : 83%
• Temperature Settings : 100-150° F (in 5° F Intervals) 160° F