Eccotemp i12-LP Indoor Tankless Water Heater
Eccotemp i12-LP Indoor Tankless Water Heater
Eccotemp i12-LP Indoor Tankless Water Heater
Eccotemp i12-LP Indoor Tankless Water Heater
Eccotemp i12-LP Indoor Tankless Water Heater
Eccotemp i12-LP Indoor Tankless Water Heater
Eccotemp i12-LP Indoor Tankless Water Heater
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Eccotemp i12-LP Indoor Tankless Water Heater


The Eccotemp i12 Liquid Propane 4 Gallon Per Minute (GPM) Tankless Water Heater has a new revolutionary design, making it unlike any other Tankless Water Heater on the market today. The Eccotemp i12-LP is perfect for vacation cabins, cottages, and smaller homes. This model features a sleek, black tempered glass front paneling, fully automatic temperature controls for precision, and a touch screen with an LED temperature display that shows output temperature and GPM flow. The Eccotemp i12-LP is also equipped with child locking technology. The Eccotemp i12-LP is a Liquid Propane-powered, indoor model designed for small to medium hot water production where you need more than one hot water application at the same time. This model also offers a 35 to 40-degree Fahrenheit temperature rise when operating at a flow rate of 4 GPM and a 77-degree Fahrenheit temperature rise at 1.5 GPM. This bundle comes with a Horizontal Stainless Steel Vent Kit, ready to install and with its 120-volt UL listed power cord powering the internal exhaust fan and digital display. The Eccotemp i12 only pulls about 2 watts while idle and 1.07 Amps during operation, making it an ideal energy efficient appliance.

Product 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

What’s Included:

  • Liquid Propane Tankless Water Heater

  • 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 Limited Warranty

i12 Product Info and Manual
i12 Warranty

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.


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 our Eccotemp EZ-Flush System Descaler Kit to ensure a clean, energy efficient, long lasting heater.  Click here for details.

All Whole Home Water Heater purchases will be shipped with SIGNATURE REQUIRED. If you wish to remove SIGNATURE REQUIRED from your shipment please contact Customer Service immediately to have it removed. Please Note: By opting out of SIGNATURE REQUIRED you release Eccotemp Systems, LLC 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.


Map Zone Southern Region, Northern Region, Mid Region
Color Black
Flow Rate 4.0 GPM
Installation Indoor
Applications Cabins, Apartment/Townhome
Power Type Liquid Propane (LP)
Dimensions 17.00" x 29.00" x 11.00"
GTIN: 00891876002614
SKU: i12-LP
Color: Blue, Purple, White
Size: 20, 24
Material: 100% Polyester