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i12 4.0 GPM WholeHome/Residential 80,000 BTU Liquid Propane Indoor Tankless Water Heater

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  • Tankless water heater provides hot water for 1-2 applications
  • Gas water heater rated at 4 GPM provides low energy consumption
  • Compact and space saving hot water heater with wall-mount design
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Product Details

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. 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
  • 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
  • IMPORTANT NOTE: Cannot be used for HYDRONIC SYSTEMS, RECIRCULATING or FLOOR HEATING.
  • What's included: i12-LP tankless water heater, wall thimble, gas appliance shut off valve, 15 in. termination pipe, mounting hardware and installation manual
  • Not CSA certified



  • Click here for more information on Electronic Recycling Programs
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Specifications

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Questions & Answers

48Questions
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Q:Does the Ecotemp i12 regulate the hot water by itself? I had a lower version and I couldn't get the hot water work properly.
by|Sep 16, 2022
1 Answer
Answer This Question

A:  Hello Jose. The Eccotemp i12 has automatic temperature controls. It will regulate the hot water as to what you have set it to. ~Team Eccotemp.

by|Sep 19, 2022
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    Q:How loud is the exhaust fan when heating water?
    by|Sep 5, 2022
    5 Answers
    Answer This Question

    A:  Avoid this junk - It isn't very loud, maybe like a kitchen exhaust hood on low. The problem is that it doesn't work. Constantly throws error codes that prevent operation 90% of the time. The few times it does actually run, it can only do a +35 degree change at maybe 1.5 gpm. Not so good when the incoming water supply is 50 in the winter time.

    by|Sep 7, 2022

      A:  Not loud at all love mine and it's very efficient

      by|Nov 30, 2022

        A:  Hello Steve. It should just be like a regular fan sound. It's not noisy. ~Team Eccotemp

        by|Sep 6, 2022

          A:  The fan is not Loud at all we have this same Model in are mud room and you can Barely hear it

          by|Sep 6, 2022

            A:  Not very loud at all

            by|Sep 7, 2022
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              Q:does this tankless hot water heater have the full vent kit already with it?
              by|Oct 26, 2021
              2 Answers
              Answer This Question

              A:  Thank you for reaching out to is. The i12 LP only comes with the basic horizontal vent kit. However, we have bundled this heater with the complete 3" horizontal and/or vertical vent kit according to you installation plan. I hope this answers your question. If you need anything else, please just let us know anytime. ~Team Eccotemp

              by|Oct 27, 2021

                A:  No, it only comes with a pretty useless little elbow and end pipe. Expect to have to buy a specialized adaptor and vent kit from the same vendor for $300 in order to hook it up for any indoor application.

                by|Mar 1, 2022
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                  Q:what is the gas supply inlet type & size?
                  by|Jul 1, 2021
                  2 Answers
                  Answer This Question

                  A:  The gas inlet size is 1/2” copper.

                  by|Jul 10, 2021

                  A:  Hello there! The gas inlet, water inlet, and outlet are sized for 1/2" NPT. If you have any questions or concerns, please reach out to our technical support team via live chat, setting up a call, or creating a support ticket at support.eccotemp.com. We will be waiting and are always happy to help! Thank you and have a wonderful day!

                  by|Jul 1, 2021
                    Showing 1-4 of 48
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                    Customer Reviews

                    3.8 out of 5
                    (62)
                    • 3.8
                      out of 62 reviews
                    • 55%recommend this product
                    Filter by:
                    Showing 1-10 of 62 reviews
                    Stay away from garbage product and this company.
                    New unit threw out error codes, customer service completely worthless. Very inconsistent, changing output temp + pressure. Comes on at 0.7 gph have to run the faucet on full to kick in. Horrible showering as at only 2.0 gph only 35 deg increase. Observed performance at different gph is only 60% of claimed numbers. Expect to spend $300 for vent adaptors + pipe size you can only get from Eccotemp that “might” work without error codes. Was also missing NPT adaptors and trim screws (another $25).
                    by
                    Response from Eccotemp Product ExpertMar 10, 2022
                    Our sincerest apologies if your water heater has not met your expectations. Upon reviewing your previous contact with our technical support team, your water heater's error code cleared when the water flow valve was adjusted. If you continue to experience issues with your water heater, please reach out to our dedicated support team so that we can best assist. Go to our main website then find the Helpdesk where you will see 3 options to make contact. We'd be happy to help! ~ Team Eccotemp Eccotemp
                      1 found this review helpful
                      Excellent for the money
                      This is a very good product for the money. Have had it over a year in and works like a champ. Tankless units take some getting used to and have to learn their operation. In the winter time it takes a bit longer to get hot water at the taps and supply decreases. It takes the same for old style hot water heater so nothing new. An on demand switch activated water recirculation system at farthest run of house can solve this problem or you put water down the drain until hot arrives. Again this happened with tanked as well as this Eccotemp i12 propane model tankless unit. Second have hot and cold water separate taps on all facets. This helps because the i12 propane model when adjusted to 124 degrees gives perfect steamy shower with just a touch cold added at shower facet. Again dual adjustments at facets is necessary for best performance. If you open cold to much the unit can drop hot water. Had to do the same with old tanked unit - hard to adjust for best temps-already had dual adjustments for facets. Now this unit although rated higher has a problem in winter time of delivering enough water to run shower and washing machine. The ground water temps are colder in winter and the gpm drops as a result of ground water temps vs delivered temp for the gpm ratio. There are charts at eccotemp website and it should be considered for selecting your tankless gpm size no matter the brand. This unit is excellent for a small home and small 2 person family in TN-GA area climate. I am pleased with it and the installation was simple with pex. Same using the included exhaust pipe setup. For under $300 this is a bargain. I may buy another one to sit on shelf in case this one ever breaks - easy swap out again a bargain. Electric bill has dropped and is noticeable for a savings. The electric water heater being gone opened up storage space too. Another closet.
                      by
                        • Recommended
                        Wow. Life saver. Never will go with any other water heater. I have used these units for years in ...
                        Wow. Life saver. Never will go with any other water heater. I have used these units for years in all my projects. Works wonder. Will recomment to anyone for any application. Love it 100%. Digital display ,stylish, fast heating and does what its supposed to. Buy eccotemp. They are the best. We only use the best.
                        by
                        • Verified Purchase
                        • Recommended
                        1 found this review helpful
                        I installed this for a 1 bedroom apartment with 1 shower 1 kitchen (no dishwasher) and washer dry...
                        I installed this for a 1 bedroom apartment with 1 shower 1 kitchen (no dishwasher) and washer dryer hookups. I live in New England so the incoming water temperature gets cold in the winter. While this does work for this application there are a couple of things to know. On the inled side there is a water throttling valve. It has a littler lever just above the inlet water connection at the unit. With the shower running full blast the unit said it was flowing 2.7 GPM. I had to restrict the flow using the valve until the unit read 1.7 GPM to get an adequate temperature at the shower. There is still plenty of flow coming out of the shower but this tweak was not mentioned in the literature. It also DOES NOT do a 65 degree F rise at 2.3 GPM. With the incoming water at 50 degrees F, I am getting an outlet temp reading at the unit of 111 degrees F at 2 GPM. That is a 61 degree rise at 2 GPM. So this is quite a bit off of the advertised values. I understand there are tolerances and the values could vary a bit but this is significant. While it works for my case, others should use the numbers I am getting instead of advertised performance values.
                        by
                          • Recommended
                          11 found this review helpful
                          Three pinhole leaks in the heat exchanger in less than two years. The company "email Helpdesk" bl...
                          Three pinhole leaks in the heat exchanger in less than two years. The company "email Helpdesk" blamed ME every time. There is a written warranty, but they will not honor it.
                          by
                            9 found this review helpful
                            Easy and fast install. Used it on a tiny home...
                            Easy and fast install. Used it on a tiny home and it supplies hot water just fine. Will buy again if I need another one.
                            by
                            • Verified Purchase
                            by
                            • Verified Purchase
                            Replaced another brand of lp on demand water heater. The eccotemp works very well.
                            Straightforward install. Lp unit works great.
                            by
                            • Verified Purchase
                            • Recommended
                            Bad out of box
                            Right out of box, installed, does not fire up. possible faulty control board cpu.
                            by
                            Response from Eccotemp Product ExpertNov 17, 2021
                            Thanks for taking the time to leave a review. We appreciate all your feedback and any chance to help improve our customer experience. We hate that you are not 100% satisfied and wanted to take a moment to answer your inquiries.

                            We sincerely apologize for the inconvenience. We do need to troubleshoot the heater to properly identify the root cause of the issue. It is best to contact our technical support team to help you assess and fix your heater. Please just go to our main website then find the Helpdesk where you will see 3 options to make contact. If you are to send an email, please include your proof of purchase, serial number, and a photo of your setup so our tech can visualize your installation for proper assessment.

                            Customer satisfaction means the most to us and please, reach out to our dedicated support team so that we can best assist. Thank you for choosing Eccotemp! ~ Team Eccotemp Eccotemp
                              1 found this review helpful
                              The unit shuts off the hot water after like 5...
                              The unit shuts off the hot water after like 5 minutes briefly then turns back.
                              by
                                Showing 1-10 of 62 reviews

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                                Ratings
                                (9)
                                (62)
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                                (31)
                                Indoor/OutdoorIndoorIndoorIndoorOutdoor
                                Gas TypePropanePropanePropanePropane
                                Number of Showers1-21-21-21-2
                                Application TypeResidentialResidentialResidentialResidential
                                Efficiency LevelHighHighHighHigh
                                Water Heater FeaturesOverheat Protection,Wall MountedDigital Display,Wall MountedDigital Display,Wall MountedDigital Display,Freeze Protection,Wall Mounted
                                Fuel TypeGasGasGasGas
                                Required Volt ConnectionNo Voltage120 volt120 volt120 volt
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