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Eccotemp i12 Indoor 4.0 GPM Natural Gas Tankless Water Heater

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Introducing the perfect option for your hot water demands, the Eccotemp i12 Indoor 4.0 GPM Natural Gas Tankless Water Heater! The most effective tankless water heater in the Eccotemp range, this innovative indoor model has a temperature rise of 38 degrees and a flow rate of an astonishing 4.0 gallons per minute.

You won't again have cold spots in your water again thanks to the Eccotemp i12-NG's unique 0.7 GPM low flow ignition technology. Additionally, this feature ensures that you will always have access to hot water without any disruptions. You will receive top-tier temperature performance at a cost that anyone can afford thanks to the improved PCB performance and the new gas modulating valve.

The Eccotemp i12-NG can manage 1-2 hot water applications concurrently and is ideal for smaller single-family homes, apartments, condos, cottages, and even small commercial applications. This tankless water heater is both space-saving and energy-efficient thanks to its small, wall-mounted design and 110/120-volt UL certified power line. The Eccotemp i12-NG is the best option for low energy consumption and efficiency because of its completely automated control system, which makes sure that it only draws about.5 amps while in use.

With cutting-edge incoming and egress water temperature sensor technology, safety is always completely assured. A Limited Manufacturer Warranty covering the Heat Exchanger for 5 years, the Parts for 2 years, and Free Accessories for 30 days is included with the Eccotemp i12-NG. You'll have peace of mind knowing that the Eccotemp i12 will keep you in hot water for years to come thanks to live chat, appointments for product support, and self-help manuals.

Tankless water heater, wall thimble, 15" termination pipe, mounting hardware, and an installation guide are all included with the Eccotemp i12-NG. For optimum performance all year long from your tankless water heater, add our revolutionary, one-of-a-kind EZ-Flush descaling kit to your Eccotemp i12.

The Eccotemp i12-NG is not CSA approved, so please be aware of it. Upgrade to the Eccotemp i12 Indoor Natural Gas Tankless Water Heater right away to start enjoying continuous hot water!

The Eccotemp i12 has been tested for use at elevations up to 2000 feet. Installation and use of the Eccotemp i12 above 2000 feet may effect overall product efficiency and performance. Installation and use of the Eccotemp i12 above 5000 feet is not recommended.


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

Please Note: Failure to clean and descale your water heater quarterly can result in lime and sediment build up within the heater, which can void your warranty! We recommend using the Eccotemp EZ-Flush System Descaler Kit to ensure a clean, energy efficient, long lasting heater.  

Features:

  • Activates only on demand and no pilot light needed, reducing energy consumption
  • Easy to use LED display controls
  • Safe electronic ignition system
  • Uses standard 1/2" NPT water fittings
  • 4 GPM flow capacity
  • Energy factor: 79%
  • Hot water capacity range: 0.6 - 4.8 GPM
  • Maximum/Minimum gas rate: 25,000 - 80,000 BTUs

 

Included with your Purchase:

  • EccoTemp i12 Natural Gas Tankless Water Heater
  • 3/4" Webstone Service Valve Kit (Threaded)
  • 2 1/2" 90-Degree Elbow with Backflow Preventer
  • Wall Thimble
  • 2 1/2" x 20" Termination Pipe
  • 120-volt UL Listed Power Cord
  • Hardware Pack
  • Instruction Manual
  • 2-year manufacturer warranty

Specifications:

  • Map Zone: Southern Region, Northern Region, Mid Region
  • Color:  Black
  • Flow Rate: 4.0 GPM
  • Installation:  Indoor
  • Applications:  Apartment/Condo/Townhome, Cabin, Tiny Home
  • Power Type:  Natural Gas (NG)
  • Dimensions: 15.70" x 27.50" x 10.90"
  • GTIN:  00891876002621
  • SKU:  i12-NG

 

Downloads:

Eccotemp i12-LP Users Manual 
Eccotemp i12-LP Warranty 

Description

Introducing the perfect option for your hot water demands, the Eccotemp i12 Indoor 4.0 GPM Natural Gas Tankless Water Heater! The most effective tankless water heater in the Eccotemp range, this innovative indoor model has a temperature rise of 38 degrees and a flow rate of an astonishing 4.0 gallons per minute.

You won't again have cold spots in your water again thanks to the Eccotemp i12-NG's unique 0.7 GPM low flow ignition technology. Additionally, this feature ensures that you will always have access to hot water without any disruptions. You will receive top-tier temperature performance at a cost that anyone can afford thanks to the improved PCB performance and the new gas modulating valve.

The Eccotemp i12-NG can manage 1-2 hot water applications concurrently and is ideal for smaller single-family homes, apartments, condos, cottages, and even small commercial applications. This tankless water heater is both space-saving and energy-efficient thanks to its small, wall-mounted design and 110/120-volt UL certified power line. The Eccotemp i12-NG is the best option for low energy consumption and efficiency because of its completely automated control system, which makes sure that it only draws about.5 amps while in use.

With cutting-edge incoming and egress water temperature sensor technology, safety is always completely assured. A Limited Manufacturer Warranty covering the Heat Exchanger for 5 years, the Parts for 2 years, and Free Accessories for 30 days is included with the Eccotemp i12-NG. You'll have peace of mind knowing that the Eccotemp i12 will keep you in hot water for years to come thanks to live chat, appointments for product support, and self-help manuals.

Tankless water heater, wall thimble, 15" termination pipe, mounting hardware, and an installation guide are all included with the Eccotemp i12-NG. For optimum performance all year long from your tankless water heater, add our revolutionary, one-of-a-kind EZ-Flush descaling kit to your Eccotemp i12.

The Eccotemp i12-NG is not CSA approved, so please be aware of it. Upgrade to the Eccotemp i12 Indoor Natural Gas Tankless Water Heater right away to start enjoying continuous hot water!

The Eccotemp i12 has been tested for use at elevations up to 2000 feet. Installation and use of the Eccotemp i12 above 2000 feet may effect overall product efficiency and performance. Installation and use of the Eccotemp i12 above 5000 feet is not recommended.


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

Please Note: Failure to clean and descale your water heater quarterly can result in lime and sediment build up within the heater, which can void your warranty! We recommend using the Eccotemp EZ-Flush System Descaler Kit to ensure a clean, energy efficient, long lasting heater.  

Features:

  • Activates only on demand and no pilot light needed, reducing energy consumption
  • Easy to use LED display controls
  • Safe electronic ignition system
  • Uses standard 1/2" NPT water fittings
  • 4 GPM flow capacity
  • Energy factor: 79%
  • Hot water capacity range: 0.6 - 4.8 GPM
  • Maximum/Minimum gas rate: 25,000 - 80,000 BTUs

 

Included with your Purchase:

  • EccoTemp i12 Natural Gas Tankless Water Heater
  • 3/4" Webstone Service Valve Kit (Threaded)
  • 2 1/2" 90-Degree Elbow with Backflow Preventer
  • Wall Thimble
  • 2 1/2" x 20" Termination Pipe
  • 120-volt UL Listed Power Cord
  • Hardware Pack
  • Instruction Manual
  • 2-year manufacturer warranty

Specifications:

  • Map Zone: Southern Region, Northern Region, Mid Region
  • Color:  Black
  • Flow Rate: 4.0 GPM
  • Installation:  Indoor
  • Applications:  Apartment/Condo/Townhome, Cabin, Tiny Home
  • Power Type:  Natural Gas (NG)
  • Dimensions: 15.70" x 27.50" x 10.90"
  • GTIN:  00891876002621
  • SKU:  i12-NG

 

Downloads:

Eccotemp i12-LP Users Manual 
Eccotemp i12-LP Warranty 

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Questions & Answers

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  • My i12 ng water heater stops working and gives me an E1 error. It is connected to a small propane tank outside. The tank is full but I still get e1 error.

    Hello, 

    The steps we suggest taking would be the following:  

    E1 Code states 2 possible problems - The gas valve is not opened or fully opened. Water shut-off valve is not open, or Junction port is loose.

    We see that you made sure the propane was full, you need to make sure the Propane valve is fully open.  After checking the propane, also check that the water valve is open fully.  If the unit is still showing the E1 codes after these checks, you will probably need to speak to technical support at EccoTemp.  Their contact number is (866) 356-1992.

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