Eccotemp Forced Vent Indoor Tankless Water Heater

by Eccotemp
Out of Stock

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ITEM# 12537852
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ITEM#: 12537852

Never catch yourself stuck in a cold shower again with this tankless water heater from Eccotemp. This energy-efficient water heater only uses gas when the hot water is turned on, saving you money and time. A digital temperature display makes it simple to control your water, and the heater's space-saving design makes it easy to install in a cabin, cottage or small home.
  • Tankless water heating system
  • For vacation cabins, cottages and smaller homes
  • FVI-12 only uses energy when you turn on the hot water
  • Otherwise the FVI-12 uses no gas or electricity
  • Modern design
  • Delivers three (3) gallons per minute of piping hot water
  • Power ventilation for safety, efficiency and venting options
  • Tested-safe electronic ignition system
  • 74,000 BTU
  • Digital temperature display
  • Fully independent gas and water controls
  • Precise temperature and water flow adjustment
  • Weighs 20 pounds
  • Measures 15 inches wide x 24 inches high x 4 inches thick
  • Includes 2-inch stainless steel horizontal vent kit
  • Uses gas only when hot water is on
  • Requires standard household 120-volt electric outlet
  • UL-listed cord
  • Liquid propane-powered

According to Federal Law Magnuson-Moss Warranty Act (P.L. 93-637) All Appliance manufacturers must be given the opportunity to attempt to repair any of their appliances before it can be returned or exchanged. For more information please click here.


Material Plastic
Type Tankless
Fuel Type Propane
Product Features Variable Temperature Control
Dimensions 24.0x15.0x4.0
Warranty 2 year Manufacturer
Model Number FVI-12
Country of Origin China

Customer Reviews

5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
  • Most Helpful

  • A product that works as advertised!
    Verified Purchase

    I bought this product to replace a conventional hot water heater. I live in an off-grid cabin and had to wait for at least an hour each time I wanted to use hot water. (Power and gas turned off every evening.) With this on-demand water heater, it takes about 90 seconds to get usable hot water. What a difference! The only hitch I had was the need to increase my well's water pressure just a little bit. But, I consider this a minor adustment that reaps great rewards.

    Read More
    twodottom Aug 7, 2011
  • eccotemp
    Verified Purchase

    This is the second one I have purchased. My first one is designed for outside service. We have it mounted outside our cabin and enjoy it very much. The second one is inside the cabin. I was a plumber for over 20 years and I feel that this is a great buy and have had no problems!

    Read More
    retflyr Jul 21, 2010
  • Works Well
    Verified Purchase

    I install this unit at camp and use A 12 volt pump that pumps 2.5 gpm power the heater with A inverter or my generator of 2000 WATS, and have endless hot water. good deal with vent kit included .Been using it for 2 mo.

    Read More
    skyviewer Jul 12, 2010
  • Most Recent

  • Hot Water Heater
    Verified Purchase

    Installed in Food Truck, good option.

    Read More
    coffeegeek Nov 24, 2017
  • good for back up
    Verified Purchase

    The unit seems very well built and was easy to install. However, temperature control/maintenance is quite variable. I've used it for a year now with no major failures. I will replace it with a storage heater but keep it in place as a back up. The fuel consumption is very efficient.

    Read More
    larry m. Jan 4, 2016
  • Easy installation,
    Verified Purchase

    Great for saving money compared to electric hot water heater.

    Read More
    shoping4fun Nov 2, 2013
  • Good so far!!
    Verified Purchase

    Have had the eccotemp tankless installed for two weeks now. Some adjustment is required if your water flow is not high enough-not a major problem but one you want to make sure you have a good water flow from your well. City folks probably wont have this issue. Awesome to not have a propane pilot light or having to keep an entire tank of water hot. Should save us enough money to pay for itself by winter!!

    Read More
    lessta Jul 29, 2011
  • Not worth it
    Verified Purchase

    I got this because it had good reviews and I figured if it actually worked it would be worth the hassle of trying to change the water pies and such to put it in. It does heat up the water, but only for a few seconds. Not even long enough to run a sink full of dishwater. Maybe a gallon at a time. And forget trying to take a bath or shower. This is totally useless and a complete waste of money. If I could I would return it and get my money back. Needless to say I will be replacing this soon.

    Read More
    annikkipoe Jul 1, 2011

Questions & Answers

  • Q:

    "Does this FVI-12LP come with the vent kit and do you have one in stock?"

    • A:

      Hello Bob, unfortunately this item is out of stock. We currently do not have inventory to check, and cannot guarantee the item will be restocked. Thank you for shopping with us.

  • Q:

    "what is the eccotemp forced vent indoor tankless water heater efficiency. I cannot find this in manual? 80% 90% or 50%?"

    • A:

      Hello Volodymyr B., the Energy efficiency is 79 percent. Thank you for shoppign with us.

  • Q:

    "Why did you choose this product?"

    • A:

      Ecotemp Forced Vent Indoor Tankless Water Heater PROPANE

    • A:

      Price and size

    • A:

      I'm building a tiny house and this is a pragmatic, eco-friendly choice for my new home.

    Read more Read less
  • Q:

    "do you have a kit to hook the heater to the houses plumbing pipes"

    • A:

      Hello george, you will need to visit your local hardware store after the unit arrives to get the connections to hook this up. Professional installation is recommended. Thank you for shopping with us. Rochelle B

  • Q:

    "how much space is required for this unit. My hot water closet is 21" x 25" x 8' tall, is that enough?"

    • A:

      Hello lottoladytx, thank you for your inquiry! This unit requires a 2 inch clearance from a wall, 1 foot side to side from anything flammble, 3 foot from a window as well from an overhang, and 18 inches from the ground. I hope this helps. Happy shopping!

  • Q:

    "will a 12v water pump supply enough pressure?"

    • A:

      Thank you poppa65 for the opportunity to help you with the Eccotemp Forced Vent Indoor Tankless Water Heater. The system does not require the use of a water pump unless you have a private water delivery system and needs to be pumped out and through the lines then the 12v pump is very sufficient. Thank you for shopping with us.

  • Q:

    "can this uit run elestric without venting"

    • A:

      Hello dbeaverson17! This water heater has received excellent reviews! The FVI-12 Tankless water heater must be vented. Venting ensures all emissions are safely passing outside as they should be. Not installation the venting would be a form of improper installation and would automatically void the warranty for this product. I hope this helps. Thanks for shopping with us.

  • Q:

    "Can this unit be mounted outside?"

    • A:

      This unit is electric, so it is designed to be placed indoors.

  • Q:

    "Can this heater be operated with a portable propane tank? What's the smallest size tank that will work?"

    • A:

      This water heater is designed to run from a gas pipeline; if you can use a propane tank safely with a similar output to a gas pipeline (correct pressure, connections, etc.) then any size should work fine. Be sure to check thoroughly for safety.

  • Q:

    "can it be run off natural gas?"

    • A:

      With the correct regulator it should be OK.

  • Q:

    "Is all the venting pipe included?"

    • A:

      Includes 2-inch stainless steel horizontal vent kit

  • Q:

    "How hot (what temperature) can the vent exhaust tube and plates get? Thanks for the info"

    • A:

      The temperature gets to180 to 205 degrees.

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** Most Oversize orders are delivered within 1-4 weeks. Some orders may take 6 weeks to be delivered.