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Elegant Eccotemp 4.0 Gpm Indoor Natural Gas Tankless Water Heater, I12 Series - Exclusive Drop [OmW46jZX]

$64.99 $207.99 -69%

Product Features:4.0 GPM flow rate, ideal for small homes, apartments, or cabinsSleek design with black tempered glass front panel and LED temperature displayFully automatic temperature controls with touch screen interfaceEnergy-efficient operation,

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Elegant Eccotemp 4.0 Gpm Indoor Natural Gas Tankless Water Heater, I12 Series - Exclusive Drop [OmW46jZX]

Product Features:

  • 4.0 GPM flow rate, ideal for small homes, apartments, or cabins
  • Sleek design with black tempered glass front panel and LED temperature display
  • Fully automatic temperature controls with touch screen interface
  • Energy-efficient operation, using only 2 watts while idle and 1.07 Amps during use
  • Child locking technology for added safety
  • Compact wall-mounted design with dimensions of 14"W x 26"H x 4.75"D
  • 80,000 BTU heating capacity for efficient hot water production
Surprise! Use this code for a 5% discount on all EccoTemp Product Orders. Code: HOORAY5

The Eccotemp i12 Indoor Natural Gas Tankless Water Heater is one of the most advanced indoor models of the Eccotemp tankless line. Rated at an impressive 4.0 GPM with a temperature rise of 38 degrees and 80,000 BTU per hour, the Eccotemp i12-NG can meet all your hot-water needs! Eccotemp’s advanced 0.7 GPM low flow ignition technology allows users to enjoy endless hot water without experiencing cold spots.

We recommend the Eccotemp i12-NG for smaller sized single-family homes, apartments, condos, and cabins as well as small commercial applications. Using 1-2 hot water applications simultaneously is a breeze with the Eccotemp i12-NG. With our upgraded PCB (Product Control Board) performance and an all new gas modulating valve, consumers can experience best in class temperature performance with a price anyone can afford.

The compact, wall mounted Eccotemp i12-NG has a 110/120-volt UL listed power cord that powers the internal Exhaust Fan, Digital Display and PCB. With its fully automated control system, the Eccotemp i12-NG only pulls about .5 amps during operation, making it an ideal for low energy consumption and efficiency.

The Eccotemp i12 has been tested at elevations up to 2000 feet. Installation and use of the Eccotemp i12 above 2000 feet may affect overall product efficiency and performance.

IMPORTANT NOTE: Cannot be used for HYDRONIC SYSTEMS, RECIRCULATING, or FLOOR HEATING.

  • Rated for 1-2 applications used simultaneously means that taking a shower and running two sinks at the same time is effortless. The Eccotemp i12 is ideal for hot water heating applications in smaller sized residential single-family home, condo, cabin, apartment, or Light commercial use
  • Rated at 4.0 GPM at 80,000 BTUs with a temperature rise of 38 degrees, this ultra-efficient tankless water heater is ideal for just about every single-family home
  • Advanced Generation 3 Computer board with high performance processing and smart adjust technology built in. Our proprietary developed programming meets and exceeds today’s consumer demands
  • With advanced incoming and outgoing water temperature sensor technology, you always have total confidence when it comes to safety
  • Limited Manufacturer Warranty (Heat Exchanger: 5 Years, Parts: 2 Years, Free Accessories - fittings, accessories, hardware pack, etc.: 30 days), live chat, appointments for product support, self-help guides will give you peace of mind that the Eccotemp i12 will keep you in hot water for years
  • The Eccotemp i12 can be complemented with our patented one of a kind EZ-Flush descaling kit to ensure your tankless water heater is running at maximum efficiency all year long

What's Included:

i12-NG Tankless Water Heater

2.5" Wall Thimble

2.5"x18" Termination Pipe

2.5"x90-degree Elbow

Mounting Hardware

Installation Manual

All purchases valued at $75 or above will be shipped with SIGNATURE REQUIRED. If you wish to remove the SIGNATURE REQUIRED please contact Customer Service. Please Note: By opting out of SIGNATURE REQUIRED, you release Eccotemp from all liability of lost or stolen packages. Call 1-866-356-1992 or chat with us here to speak with a customer service agent.

What Our Customers Say

January 29, 2026

Absolutely no complaints!

The product is a very fine item.

- Remington V..

January 29, 2026

Absolutely no complaints!

Incredibly reliable and well-made.

- Joseph V..

January 29, 2026

Absolutely no complaints!

This is a product that inspires confidence.

- Bentley T..

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