|Home Size||Southern climate: 3-4 bathrooms
Northern climate: 2 bathrooms
|Indoor Unit Dimensions||23.6” (H) x 13.8” (W) x 9.4” (D)|
|Outdoor Unit Dimensions||23.6” (H) x 13.8” (W) x 9.4” (D)|
|Weight||54 lbs. (SV and OD), 58 lbs. (DVC)|
(NG & LP)
|Max. 199,900 Btuh - Min. 16,000 Btuh|
|Capacity Range||0.5-9.8 Gal./min.|
|Energy Factor||0.82 (NG), 0.88 (LP)|
|Temperature Settings||100-140° F (in 5° F Intervals) (9 options)|
|Accessories||Anchoring Screws, Remote Control & Cord
(SV & OD models only), Power Cord Kit
(SV model only).
With more power than any tankless water heater in its class, the NR981 series is ideal for mid-size homes with up to 4 showers. Built-in features include safety lock-out, freeze protection, and high elevation adjustment. PVC CANNOT be used for venting.
NR981 Owner's Guide
These units offer several innovations:
Safety lock out - Default max. 120 degrees (refer to owner's manual for higher temp)
Dual flame burner - Noritz exclusive! Minimizes temperature fluctuations.
Fully modulating - Automatically adjusts burner level accordingly.
Turbo Flow - Up to 9.8 GPM @ 35 degree temperature rise (7.5 GPM @ 45 degree rise).
Quick Connect - Doubles the output by connecting two identical heaters.
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.
Commercial grade heat exchanger - 25% thicker piping than our competition