Rheem-ruud 3G-OTH-452258 — Technical Specifications
The RHEEM-RUUD Commercial Gas Water Heater (SKU 35Z885, MPN GNU100-400A) is a general-purpose commercial gas water heater with a 100-gallon nominal tank capacity and a 399,900 BTU input. It operates on natural gas, features a Low NOx compliant burner, and uses a direct spark to pilot ignition system with standard venting. Key specifications include a recovery rate of 323 gph at 120°F, a maximum recovery flow rate of 969 gph at 40°F, an 8-inch vent connection size, and 120V AC operating voltage. This ASHRAE-compliant unit includes a side water connection and a drain valve.
Technical Specifications
| Parameter | Value |
|---|---|
| Ht | 76 in |
| BTU | 399,900 |
| Type | Low NOx, 100 gal |
| Brand | RHEEM-RUUD |
| Market | Commercial |
| Low NOx | Yes |
| Fuel Type | Natural Gas |
| Standards | ASHRAE |
| Sub-Brand | Rheem Ruud |
| Vent Type | Standard |
| Ignition Type | Direct Spark to Pilot |
| Included Valves | Drain |
| Display Sell UOM | EA |
| Low NOx Compliant | Includes California Low NOx Compliant Burner |
| Operating Voltage | 120V AC |
| Included Valve Type | Drain |
| Recovery Rate @ Rise | 323 gph @ 120°F |
| Vent Connection Size | 8 in |
| Nominal Tank Capacity | 100 gal |
| Manufacturer Part Number | GNU100-400A |
| Water Connection Location | Side |
| Maximum Recovery Flow Rate | 969 gph @ 40°F |