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RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 100 gal, 399,900 BTU - General Purpose Commercial Gas Water Heaters
RHEEM-RUUDGeneral Purpose Commercial Gas Water Heaters

RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 100 gal, 399,900 BTU

The RHEEM-RUUD Commercial Gas Water Heater is a general-purpose commercial gas water heater fueled by natural gas, with a nominal tank capacity of 100 gallons and a maximum recovery flow rate of 969 gph @ 40°F. It…

SKU 3G-OTH-452275

Brand
RHEEM-RUUD
Item
Commercial Gas Water Heater: Natural Gas, Low NOx, 100 gal, 399,900 BTU
Category
General Purpose Commercial Gas Water Heaters
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Technical Specifications

RHEEM-RUUD
Manufacturer Part Number
GN100-400A
Type
Low NOx, 100 gal
Ht
76 in
BTU
399,900
Market
Commercial
Low NOx
Yes
Fuel Type
Natural Gas
Standards
ANSI
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
T & P Relief
Recovery Rate @ Rise
388 gph @ 100°F
Vent Connection Size
8 in
Nominal Tank Capacity
100 gal
Water Connection Location
Side
Maximum Recovery Flow Rate
969 gph @ 40°F
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RHEEM-RUUD Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The RHEEM-RUUD Commercial Gas Water Heater is a general-purpose commercial gas water heater fueled by natural gas, with a nominal tank capacity of 100 gallons and a maximum recovery flow rate of 969 gph @ 40°F. It operates on 120V AC with a direct spark to pilot ignition, includes a California Low NOx Compliant Burner, and meets ANSI standards. The unit features a side water connection location, an 8-inch vent connection size, and includes a T & P relief valve and drain valve.

Frequently Asked Questions

What is the RHEEM-RUUD GN100-400A commercial gas water heater used for?

The RHEEM-RUUD GN100-400A is a general-purpose commercial gas water heater designed for high-demand hot water applications in facilities like restaurants, hotels, and laundries. It delivers 399,900 BTU with a 100-gallon tank and 969 gph recovery at 40°F rise, meeting ANSI standards.

What are the specifications of the RHEEM-RUUD GN100-400A?

Key specs include 399,900 BTU, 100-gallon nominal tank capacity, 76 in height, natural gas fuel, 120V AC operating voltage, direct spark to pilot ignition, 8 in vent connection, and side water connections. It includes a T&P relief valve and drain valve, and is California Low NOx compliant.

Where to buy the RHEEM-RUUD GN100-400A commercial water heater worldwide?

3G Electric supplies the RHEEM-RUUD GN100-400A commercial gas water heater to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this ANSI-compliant unit.

How to install the RHEEM-RUUD GN100-400A commercial gas water heater?

Installation must follow local codes and the manufacturer's manual. Ensure proper venting with the 8 in vent connection, natural gas supply, and 120V AC power. The side water connections require appropriate piping. Always use a licensed professional for gas and electrical connections.

Used in

Common applications for RHEEM-RUUD
Hotel laundry facilities — Rheem-Ruud commercial gas water heaters (e.g., GNU76-200) for high-volume hot water supply
Restaurant kitchens — Rheem-Ruud point-of-use electric water heaters (e.g., EGSP20) for under-sink hot water
Industrial wash stations — Rheem-Ruud storage tanks (e.g., ST80) to buffer hot water demand
Office building break rooms — Rheem-Ruud compact electric water heaters (e.g., EGSP10 120V) for localized hot water
Commercial dishwashing — Rheem-Ruud gas water heaters (e.g., G82-156) for continuous hot water at 180°F sanitizing temperatures

RHEEM-RUUD Products

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.

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