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i12 4.0 GPM WholeHome/Residential 80,000 BTU Natural Gas Indoor Tankless Water Heater

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  • Great for cabins, cottages and smaller homes
  • Child locking technology offers peace of mind
  • Features a touch screen with an LED temperature display
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Product Overview

The Eccotemp i12 Indoor Liquid Propane 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-LP 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-LP 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-LP. 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-LP 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-LP only pulls about 0.5 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. Installation and use of the Eccotemp i12 above 5000 feet is not recommended.
  • 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
  • IMPORTANT NOTE: Cannot be used for HYDRONIC SYSTEMS, RECIRCULATING, or FLOOR HEATING.
  • What's Included: i12-NG tankless water heater, wall thimble, 18" straight pipe, mounting hardware, and installation manual
  • Click here to check out our buying guide on water heaters



  • Click here to learn more about Eco Options and Energy Efficiency
  • Click here for more information on Electronic Recycling Programs

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i12 4.0 GPM WholeHome/Residential 80,000 BTU Liquid Propane Indoor Tankless Water Heater
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i12 4.0 GPM WholeHome/Residential 80,000 BTU Natural Gas Indoor Tankless Water Heater
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BrandEccotempEccotempMAREYRinnai
Namei12 4.0 GPM WholeHome/Residential 80,000 BTU Liquid Propane Indoor Tankless Water Heateri12 4.0 GPM WholeHome/Residential 80,000 BTU Natural Gas Indoor Tankless Water Heater8.34 GPM, CSA Certified, Residential Multiple Points of Use Natural Gas Tankless Water HeaterValue Series Outdoor 5.6 GPM Residential 120,000 BTU Natural Gas Tankless Water Heater
Price
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Add to Cart to See Price
$61258
$61819
Ratings
(61)
(150)
(22)
(42)
Indoor/OutdoorIndoorIndoorIndoorOutdoor
Gas TypeLiquid PropaneNatural GasNatural GasNatural Gas
Number of Showers1-21-21-31-2
Application TypeResidentialResidentialResidentialResidential
Efficiency LevelHighHighHighHigh
Water Heater FeaturesDigital Display,Wall MountedDigital Display,Wall MountedDigital Display,Freeze Protection,Overheat Protection,Wall MountedDigital Display,Freeze Protection,Wall Mounted
Fuel TypeGasGasGasGas
Required Volt Connection120 volt120 volt120 volt120 volt
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Specifications

Dimensions

Product Depth (in.)4.75 inProduct Height (in.)26 in
Product Width (in.)14 inVent diameter (in.)2.5 in
Water Connection Size (in.)1/2 in

Details

Application TypeResidentialEfficiency LevelHigh
Finish FamilyBlackFlow Rate @ 35°F Rise (gallons/min)4 gal (US)/min
Flow Rate @ 45°F Rise (gallons/min)3.1 gal (US)/minFlow Rate @ 55°F Rise (gallons/min)2.4 gal (US)/min
Flow Rate @ 65°F Rise (gallons/min)1.7 gal (US)/minFuel TypeGas
Gas Connection Size1/2 inGas TypeNatural Gas
Heat Exchanger Warranty2 YearIndoor/OutdoorIndoor
Maximum Temperature (F)140 °FMinimum Activation Rate (gpm)0.7
Minimum Temperature (F)90 °FNumber of Showers1-2
Pack Size1Product Weight (lb.)21.8 lb
Required Volt Connection120 voltReturnable90-Day
Total BTU80000 BtuUniform Energy Factor0.79
Vent TypeSingle WallWater Connection LocationBottom
Water Heater FeaturesDigital Display,Wall MountedWattage (watts)33 W

Warranty / Certifications

Certifications and ListingsNo Certifications or ListingsLabor WarrantyNo Warranty
Part Warranty2 Year

Questions & Answers

Typical questions asked about products:

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Customer Reviews

  • 3.8
    out of 150 reviews
  • 72%recommend this product
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Showing 1-10 of 150 reviews
Excellent hot water. We had it installed about 2 wks ago and couldn’t be happier.
Excellent hot water. We had it installed about 2 wks ago and couldn’t be happier.
by
  • Verified Purchase
  • Recommended
The unit never picked the flow of water , even with several open faucets with an over all water p...
The unit never picked the flow of water , even with several open faucets with an over all water pressure of about 60 - 70 psi. Also tried the relief valve at the heater, still the unit would not pick up the flow. Already have a unit ( different mfg. ) installed and it works great, if it was still being produced it would have been my first choice. Will be returning this and making another selection.
by
Response from Eccotemp Product ExpertFeb 28, 2020
Hello there. We are sorry that your Eccotemp i12 didn't work for you. The Eccotemp i12 is designed to activate at 0.6 gallons per minute. If the fixture doesn't meet that then the water heater won't activate. We very much would like to look into this further and help you. Please reach out to our dedicated technical support team via live chat, setting up a call, or creating a support ticket at support.eccotemp.com. We will be waiting! ~ Eccotemp Systems LLC. Eccotemp
  • Verified Purchase
1 found this review helpful
Do NOT Purchase this or any of their products. Poor Quality, peice of crap. I owned the unit for ...
Do NOT Purchase this or any of their products. Poor Quality, peice of crap. I owned the unit for a full 18 months before it stopped working. The company warranty is worthless. If you are interested in throwing away a crap load of money on the unit, installation, removal and shipping of the unit back to them. Then go right ahead and toss your money.
by
    3 found this review helpful
    Only recommendation if someone need less water need. Not too much consumption. Works awesome but ...
    Only recommendation if someone need less water need. Not too much consumption. Works awesome but it’s not 4GPM, it’s around 2.5.
    by
    • Verified Purchase
    • Recommended
    4 found this review helpful
    Seems to work well. Haven't really used it much yet, just testing. Is a little bit noisy but, not...
    Seems to work well. Haven't really used it much yet, just testing. Is a little bit noisy but, not horribly. Installation is pretty simple. Seems as though it will work great for my little house.
    by
    • Verified Purchase
    • Recommended
    1 found this review helpful
    For this price point best heater you can get. Vent...
    For this price point best heater you can get. Vent pipe does cause overall cost to rise though. Can only run one shower or appliance at a time for hot water. All sinks running will have hot water. Water temperature at heater set at 133 heat out of faucet is 109 roughly in December. 3 bed 2 bath
    by
    • Verified Purchase
    11 found this review helpful
    This unit is very effective and supplies our homes needs. We are happy with this product for now ...
    This unit is very effective and supplies our homes needs. We are happy with this product for now and have hopes that it will last for many years. We also installed a check valve and clean out valves below the unit and cut off valves going to the supply lines both hot and cold. This will allow us to clean this unit periodically with white vinegar to remove the scale and lime build up adding to the units life.
    by
    • Verified Purchase
    • Recommended
    13 found this review helpful
    Great working tankless water heater. We installed it in a...
    Great working tankless water heater. We installed it in a 1392 ft. mobile home - 3 bedroom 2 bath and ran water from faucets to clean the place ( as an empty ) all day and never ran out of hot water. Just for reference. Very sleek looking. Came with the necessary parts to connect. VERY informational manual, thick like a book with installation & maintanence instructions. Make sure to flush & descale every so often to keep it working efficiently.
    by
    • Verified Purchase
    These are amazing. Putting them in my rentals now....
    These are amazing. Putting them in my rentals now.
    by
    • Verified Purchase
    Works great, but...
    Works great. However it uses way more gas than anticipated. We had a 50 gal gas water heater serving 2 people. We added an ADU for one person, and the insta-hot uses 3 times the gas?
    by
    • Verified Purchase
    Showing 1-10 of 150 reviews