RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 100 gal, 399,900 BTU
The RHEEM-RUUD Commercial Gas Water Heater (SKU GNU100-400A, 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…
SKU 3G-OTH-452258
Also listed as: GNU100400A · GNU100 400A
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The RHEEM-RUUD Commercial Gas Water Heater (SKU GNU100-400A, 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.
Frequently Asked Questions
What is the RHEEM-RUUD GNU100-400A commercial gas water heater used for?
The RHEEM-RUUD GNU100-400A is a general-purpose commercial gas water heater designed for high-demand hot water applications in facilities such as restaurants, hotels, laundries, and apartment buildings. It provides a 100-gallon nominal tank capacity with a 399,900 BTU input and a recovery rate of 323 gph at 120°F, making it suitable for continuous-use environments.
What are the specifications of the RHEEM-RUUD GNU100-400A?
The RHEEM-RUUD GNU100-400A is a natural gas, Low NOx compliant commercial water heater with a 100-gallon tank, 399,900 BTU input, and 76-inch height. It features a direct spark to pilot ignition, standard venting, an 8-inch vent connection, 120V AC operating voltage, and a side water connection with a drain valve. It meets ASHRAE standards.
Where to buy the RHEEM-RUUD GNU100-400A worldwide?
You can source the RHEEM-RUUD GNU100-400A commercial gas water heater through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we provide competitive pricing and reliable sourcing for this Rheem Ruud model.
How to install the RHEEM-RUUD GNU100-400A commercial gas water heater?
Installation of the RHEEM-RUUD GNU100-400A requires a licensed professional following local codes and the manufacturer's manual. Ensure proper venting with the 8-inch connection, natural gas supply, and 120V AC electrical hookup. The side water connection and drain valve simplify plumbing. Always verify Low NOx compliance for applicable regions and test the direct spark ignition system.
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3G Electric supplies RHEEM-RUUD general purpose commercial gas water heaters. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
