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RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 100 gal, 199,900 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, 199,900 BTU

The RHEEM-RUUD Commercial Gas Water Heater (SKU GNU100-200, MPN GNU100-200) is a general-purpose commercial gas water heater with a nominal tank capacity of 100 gal and a maximum recovery flow rate of 485 gph @ 40°F…

SKU 3G-OTH-452253

Also listed as: GNU100200 · GNU100 200

Brand
RHEEM-RUUD
Item
Commercial Gas Water Heater: Natural Gas, Low NOx, 100 gal, 199,900 BTU
Category
General Purpose Commercial Gas Water Heaters
Available to Order
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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.

Technical Specifications

RHEEM-RUUD
Manufacturer Part Number
GNU100-200
Type
Low NOx, 100 gal
Ht
73.06 in
BTU
199,900
Market
Commercial
Low NOx
Yes
Fuel Type
Natural Gas
Standards
ASHRAE 90.1b-2001
Sub-brand
Rheem Ruud
Vent Type
Standard
Ignition Type
Direct Spark to Pilot
Included Valves
Temperature and Pressure Relief
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
162 gph @ 120°F
Vent Connection Size
6 in
Nominal Tank Capacity
100 gal
Water Connection Location
Side
Maximum Recovery Flow Rate
485 gph @ 40°F

Technical Documents

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RHEEM-RUUD Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The RHEEM-RUUD Commercial Gas Water Heater (SKU GNU100-200, MPN GNU100-200) is a general-purpose commercial gas water heater with a nominal tank capacity of 100 gal and a maximum recovery flow rate of 485 gph @ 40°F. It operates on natural gas, features a Low NOx compliant burner, and uses a direct spark to pilot ignition system. The unit includes a temperature and pressure relief valve, has a vent connection size of 6 in, and operates at 120V AC. It meets ASHRAE 90.1b-2001 standards and includes California Low NOx compliant burner.

Frequently Asked Questions

What is the RHEEM-RUUD GNU100-200 commercial gas water heater used for?

The RHEEM-RUUD GNU100-200 is a general-purpose commercial gas water heater designed for high-demand hot water applications in commercial buildings, such as restaurants, hotels, and laundries. It provides a 100 gal tank capacity and a 199,900 BTU input, with a Low NOx burner for emissions compliance.

What are the specifications of the RHEEM-RUUD GNU100-200?

The RHEEM-RUUD GNU100-200 has a 100 gal nominal tank capacity, 199,900 BTU input, and a recovery rate of 162 gph at 120°F rise. It operates on natural gas at 120V AC, uses a direct spark to pilot ignition, includes a temperature and pressure relief valve, and meets ASHRAE 90.1b-2001 standards.

Where to buy the RHEEM-RUUD GNU100-200 in worldwide?

3G Electric supplies the RHEEM-RUUD GNU100-200 commercial gas water heater worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver this RHEEM-RUUD model to any international location.

How to install the RHEEM-RUUD GNU100-200 commercial gas water heater?

Installation must follow local codes and the manufacturer's manual. Ensure proper venting with a 6 in vent connection, adequate gas supply for 199,900 BTU, and a 120V AC electrical connection. The unit includes a temperature and pressure relief valve. Always use a licensed professional for gas and electrical work.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 100 gal, 399,900 BTU, 76 in Ht (MPN GNU100-400A)
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RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 76 gal, 199,900 BTU, 68.81 in Ht (MPN GNU76-200)
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RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 100 gal, 199,900 BTU, 73.06 in Ht (MPN GN100-200)
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RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 100 gal, 199,900 BTU, 73.06 in Ht (MPN GN100-200)
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