Eccotemp Forced Vent Indoor Tankless Water Heater

by Eccotemp
Add to cart to see price
Free Shipping*

Club O Gold Members Earn

$13.20 | 5% Rewards*




5% Rewards

Earn even faster

Free Shipping

Never pay extra*

Exclusive Rewards

Save big-- up to 40%

Exclusive Offers

Straight to your inbox

5% Dining Rewards

Get paid to go out tonight

ITEM# 12537852
  • Delivery Estimate

    Select a Product Option to view shipping

      **Delivery date is approximate and not guaranteed. Estimates include processing and shipping times, and are only available in US (excluding APO/FPO and PO Box addresses). Final shipping costs are available at checkout.

    • Warranty
      Included Warranty: 2 year Manufacturer
    • Notifications

    Love this item?

    Save it to a list so you can find it anytime!


    something went wrong.

    Please refresh the page and try again.


    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
    • 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
    • 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
    • Most Recent

    • 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
    • Easy installation,
      Verified Purchase

      Great for saving money compared to electric hot water heater.

      Read More
    • 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
    • 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
    • so far so good
      Verified Purchase

      Seems to be a well built unit. I installed it less than a month ago and so far so good. Be aware that the required flow rate is .9 gal per min, if you have a low flow nozzle on your sink it will not trigger the unit to fire up. Still making adjustments, but satisfied with the unit. The price was right.

      Read More

    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.

    Shopping Tips & Inspiration

    Shipping & Returns

    Contact Information

    Usually leaves our warehouse in 1-2 business days. *

    Shipping Information:

    Our standard shipping method is ground shipping. We also offer expedited shipping for most items. Your final shipping cost and estimated delivery timeframe will be available at checkout.
    Standard shipping details
    Expedited shipping details

    Standard Return Policy:

    Items must be returned in new or unused condition and contain all original materials included with the shipment. More Details

    FINAL SALE EXCLUSION: Items marked as FINAL SALE are not returnable unless the problem you experience is the result of our error.

    For your protection, all orders are screened for security purposes. If your order is selected for review, our Loss Prevention Team may contact you by phone or email. There may be a two business day delay to process your order.

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