We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 100 gal, 250,000 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, 250,000 BTU

The RHEEM-RUUD Commercial Gas Water Heater (SKU GNU100-250A, MPN GNU100-250A) is a general-purpose commercial water heater with a 100-gallon nominal tank capacity and a 250,000 BTU input. It operates on natural gas…

SKU 3G-OTH-452256

Also listed as: GNU100250A · GNU100 250A

Brand
RHEEM-RUUD
Item
Commercial Gas Water Heater: Natural Gas, Low NOx, 100 gal, 250,000 BTU
Category
General Purpose Commercial Gas Water Heaters
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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
GNU100-250A
Type
Low NOx, 100 gal
Ht
73.25 in
BTU
250,000
Market
Commercial
Low NOx
Yes
Fuel Type
Natural Gas
Standards
ASHRAE
Sub-brand
Commercial Water Heater
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
242 gph @ 100°F
Vent Connection Size
6 in
Nominal Tank Capacity
100 gal
Water Connection Location
Side
Maximum Recovery Flow Rate
606 gph @ 40°F

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The RHEEM-RUUD Commercial Gas Water Heater (SKU GNU100-250A, MPN GNU100-250A) is a general-purpose commercial water heater with a 100-gallon nominal tank capacity and a 250,000 BTU input. It operates on natural gas, features a direct spark to pilot ignition, and includes a California Low NOx compliant burner. Key specifications include a recovery rate of 242 gph @ 100°F, a maximum recovery flow rate of 606 gph @ 40°F, a 6-inch vent connection, and a 120V AC operating voltage. This unit is ASHRAE compliant and comes with a T & P relief valve and a drain valve.

Frequently Asked Questions

What is the RHEEM-RUUD GNU100-250A commercial gas water heater used for?

The RHEEM-RUUD GNU100-250A 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-gallon tank capacity with a 250,000 BTU input and a recovery rate of 242 gph at 100°F rise, ensuring reliable hot water supply.

What are the specifications of the RHEEM-RUUD GNU100-250A water heater?

The RHEEM-RUUD GNU100-250A has a 100-gallon nominal tank capacity, 250,000 BTU input, and operates on natural gas. It features a direct spark to pilot ignition, a California Low NOx compliant burner, and a 6-inch vent connection. Operating voltage is 120V AC, and it includes a T&P relief valve and drain valve. It is ASHRAE compliant.

Where to buy the RHEEM-RUUD GNU100-250A commercial water heater worldwide?

3G Electric supplies the RHEEM-RUUD GNU100-250A commercial gas water heater worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this unit to commercial facilities globally.

How to install the RHEEM-RUUD GNU100-250A commercial gas water heater?

Installation of the RHEEM-RUUD GNU100-250A requires a licensed professional. Ensure proper venting with a 6-inch connection, natural gas supply, and 120V AC power. The unit includes a T&P relief valve and drain valve. Follow local codes and the manufacturer's manual for clearances, piping, and safety. 3G Electric provides sourcing support but does not offer installation services.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 100 gal, 270,000 BTU, 73.88 in Ht (MPN GN100-270A)
RHEEM-RUUD
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 100 gal, 270,000 BTU, 73.88 in Ht (MPN GN100-270A)
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 100 gal, 399,900 BTU, 76 in Ht (MPN GNU100-400A)
RHEEM-RUUD
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 100 gal, 399,900 BTU, 76 in Ht (MPN GNU100-400A)
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 100 gal, 199,900 BTU, 73.06 in Ht (MPN GN100-200)
RHEEM-RUUD
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 100 gal, 199,900 BTU, 73.06 in Ht (MPN GN100-200)
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 100 gal, 399,900 BTU, 76 in Ht (MPN GN100-400A)
RHEEM-RUUD
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 100 gal, 399,900 BTU, 76 in Ht (MPN GN100-400A)
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, 100 gal, 270,000 BTU, 73.88 in Ht (MPN G100-270A)
RHEEM-RUUD
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, 100 gal, 270,000 BTU, 73.88 in Ht (MPN G100-270A)
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 76 gal, 199,900 BTU, 68.81 in Ht (MPN GNU76-200)
RHEEM-RUUD
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 76 gal, 199,900 BTU, 68.81 in Ht (MPN GNU76-200)

More from RHEEM-RUUD

View all RHEEM-RUUD parts
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, 85 gal, 399,900 BTU, 78.81 in Ht (MPN G85-400A)
RHEEM-RUUD
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, 85 gal, 399,900 BTU, 78.81 in Ht (MPN G85-400A)
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 100 gal, 76,000 BTU, 69.63 in Ht (MPN G100-80N)
RHEEM-RUUD
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 100 gal, 76,000 BTU, 69.63 in Ht (MPN G100-80N)
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 75 gal, 75,100 BTU, 64 in Ht (MPN G75-75N-3)
RHEEM-RUUD
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 75 gal, 75,100 BTU, 64 in Ht (MPN G75-75N-3)
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 75 gal, 125,000 BTU, 65.5 in Ht (MPN GNU75-125)
RHEEM-RUUD
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 75 gal, 125,000 BTU, 65.5 in Ht (MPN GNU75-125)
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, 100 gal, 199,900 BTU, 73.06 in Ht (MPN G100-200)
RHEEM-RUUD
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, 100 gal, 199,900 BTU, 73.06 in Ht (MPN G100-200)
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 100 gal, 199,900 BTU, 73.06 in Ht (MPN GNU100-200)
RHEEM-RUUD
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 100 gal, 199,900 BTU, 73.06 in Ht (MPN GNU100-200)
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 91 gal, 199,900 BTU, 76.31 in Ht (MPN GN91-200)
RHEEM-RUUD
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 91 gal, 199,900 BTU, 76.31 in Ht (MPN GN91-200)
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 72 gal, 250,000 BTU, 71.06 in Ht (MPN GN72-250A)
RHEEM-RUUD
RHEEM-RUUD Commercial Gas Water Heater: Natural Gas, Low NOx, 72 gal, 250,000 BTU, 71.06 in Ht (MPN GN72-250A)