(608) 623-3999



Our NR50 outdoor model is our newest and most affordable model for apartments, condominiums and townhouses with 1-2 showers. NR50 outdoor model is the way to upgrade your lifestyle to continuous hot water when you need it. This compact model is perfect in the southeastern region of the USA.

Key Features:

Outdoor model - NO VENTING REQUIRED - No expensive venting required

12 year warranty - Longer coverage than competition, 12 years on heat exchanger, 5 years on parts, 1 year labor

Optional Freezing protection kit - Freezing protection kit is sold separately

0.5 GPM min. flow activation - Capable to handle higher incoming water temperature than current residential series

1/2″ Gas fitting - NO NEED TO UPSIZE - No need to upgrade gas line if pipe length is less than 20′ (Natural Gas) from meter or 40′ (Propane) from gas tank

Other Features:

Safety lock out - Default max. 120° (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 5.0 GPM @ 30° temperature rise (4.2 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


Home Size

Southern climate: 1 baths
Northern climate: 0 bath

Outdoor Unit Dimensions

20.5” (H) x 13.8” (W) x 6.7” (D)


33 lbs.

Gas Consumption

Min. 15,000 btuh
Max. 120,000 btuh

(NG & LP)

Natural Gas/Propane

Capacity Range

0.5-5.0 Gal./min.

Energy Factor

0.82 (NG&LP)

Thermal Efficiency


Temperature Settings

100-150° F (in 5° F Intervals) 160° F


*Freeze Protection Kit is required for Northern climate