Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

RHEEM-RUUD Electric Water Heater: 208V AC, 120 gal, 18,000 W, Single/Three Phase - Fast-Recovery Commercial Electric Water Heaters
RHEEM-RUUDFast-Recovery Commercial Electric Water Heaters

RHEEM-RUUD Electric Water Heater: 208V AC, 120 gal, 18,000 W, Single/Three Phase

The RHEEM-RUUD Electric Water Heater (MPN ES120-18-G) is a fast-recovery commercial electric water heater with a 120-gallon capacity and 18,000 W power rating, operating at 208V AC in single/three-phase…

SKU 3G-OTH-456724

Brand
RHEEM-RUUD
Item
Electric Water Heater: 208V AC, 120 gal, 18,000 W, Single/Three Phase
Category
Fast-Recovery Commercial Electric Water Heaters
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
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

Technical Specifications

RHEEM-RUUD
Manufacturer Part Number
ES120-18-G
Type
120 gal, 18,000 W, Single/Three Phase
Ht
67.6 in
Phase
Single
View Full Spec Sheet

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 Electric Water Heater (MPN ES120-18-G) is a fast-recovery commercial electric water heater with a 120-gallon capacity and 18,000 W power rating, operating at 208V AC in single/three-phase configurations. Standing 67.6 inches tall, this unit is designed for high-demand commercial applications requiring consistent hot water supply.

Frequently Asked Questions

What is the RHEEM-RUUD ES120-18-G electric water heater used for?

The RHEEM-RUUD ES120-18-G is a fast-recovery commercial electric water heater designed for high-demand applications such as restaurants, hotels, and industrial facilities that require a consistent supply of hot water. Its 120-gallon capacity and 18,000 W power rating support continuous operation in demanding environments.

What are the specifications of the RHEEM-RUUD ES120-18-G?

The RHEEM-RUUD ES120-18-G operates at 208V AC with single/three-phase capability, delivering 18,000 W. It has a 120-gallon capacity, stands 67.6 inches tall, and is a single-phase unit. The manufacturer part number is ES120-18-G, and it is built for fast recovery in commercial settings.

Where to buy the RHEEM-RUUD ES120-18-G worldwide?

3G Electric supplies the RHEEM-RUUD ES120-18-G electric 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 commercial-grade unit.

How to install the RHEEM-RUUD ES120-18-G electric water heater?

Installation of the RHEEM-RUUD ES120-18-G requires a licensed electrician to connect the 208V AC single/three-phase power supply. Ensure proper plumbing connections for the 120-gallon tank and follow local codes for pressure relief valves. Refer to the manufacturer's manual for specific wiring and mounting instructions.

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 fast-recovery commercial electric 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

More from RHEEM-RUUD

View all RHEEM-RUUD parts
RHEEM-RUUD Electric Water Heater: 240V AC, 120 gal, 18,000 W, Single/Three Phase, 67.6 in Ht (MPN ES120-18-G). Key specifications — Phase: Three; Brand: RHEEM-RUUD.
RHEEM-RUUD
RHEEM-RUUD Electric Water Heater: 240V AC, 120 gal, 18,000 W, Single/Three Phase, 67.6 in Ht (MPN ES120-18-G). Key specifications — Phase: Three; Brand: RHEEM-RUUD.
RHEEM-RUUD Electric Water Heater: 480V AC, 120 gal, 36,000 W, Single/Three Phase, 67.6 in Ht (MPN ES120-36-G). Key specifications — Phase: Single; Brand: RHEEM-RUUD.
RHEEM-RUUD
RHEEM-RUUD Electric Water Heater: 480V AC, 120 gal, 36,000 W, Single/Three Phase, 67.6 in Ht (MPN ES120-36-G). Key specifications — Phase: Single; Brand: RHEEM-RUUD.
RHEEM-RUUD Electric Water Heater: 240V AC, 85 gal, 36,000 W, Single/Three Phase, 57.7 in Ht (MPN ES85-36-G). Key specifications — Phase: Single; Brand: RHEEM-RUUD.
RHEEM-RUUD
RHEEM-RUUD Electric Water Heater: 240V AC, 85 gal, 36,000 W, Single/Three Phase, 57.7 in Ht (MPN ES85-36-G). Key specifications — Phase: Single; Brand: RHEEM-RUUD.
RHEEM-RUUD Electric Water Heater: 480V AC, 50 gal, 18,000 W, Single/Three Phase, 43.6 in Ht (MPN ES50-18-G). Key specifications — Phase: Three; Brand: RHEEM-RUUD.
RHEEM-RUUD
RHEEM-RUUD Electric Water Heater: 480V AC, 50 gal, 18,000 W, Single/Three Phase, 43.6 in Ht (MPN ES50-18-G). Key specifications — Phase: Three; Brand: RHEEM-RUUD.
RHEEM-RUUD Electric Water Heater: 480V AC, 120 gal, 18,000 W, Single/Three Phase, 67.6 in Ht (MPN ES120-18-G). Key specifications — Phase: Single; Brand: RHEEM-RUUD.
RHEEM-RUUD
RHEEM-RUUD Electric Water Heater: 480V AC, 120 gal, 18,000 W, Single/Three Phase, 67.6 in Ht (MPN ES120-18-G). Key specifications — Phase: Single; Brand: RHEEM-RUUD.
RHEEM-RUUD Electric Water Heater: 208V AC, 120 gal, 36,000 W, Single/Three Phase, 67.6 in Ht (MPN ES120-36-G). Key specifications — Phase: Single; Brand: RHEEM-RUUD.
RHEEM-RUUD
RHEEM-RUUD Electric Water Heater: 208V AC, 120 gal, 36,000 W, Single/Three Phase, 67.6 in Ht (MPN ES120-36-G). Key specifications — Phase: Single; Brand: RHEEM-RUUD.
RHEEM-RUUD Electric Water Heater: 208V AC, 85 gal, 54,000 W, Single/Three Phase, 57.7 in Ht (MPN ES85-54-G). Key specifications — Phase: Single; Brand: RHEEM-RUUD.
RHEEM-RUUD
RHEEM-RUUD Electric Water Heater: 208V AC, 85 gal, 54,000 W, Single/Three Phase, 57.7 in Ht (MPN ES85-54-G). Key specifications — Phase: Single; Brand: RHEEM-RUUD.
RHEEM-RUUD Electric Water Heater: 480V AC, 85 gal, 27,000 W, Single/Three Phase, 57.7 in Ht (MPN ES85-27-G). Key specifications — Phase: Single; Brand: RHEEM-RUUD.
RHEEM-RUUD
RHEEM-RUUD Electric Water Heater: 480V AC, 85 gal, 27,000 W, Single/Three Phase, 57.7 in Ht (MPN ES85-27-G). Key specifications — Phase: Single; Brand: RHEEM-RUUD.