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Product Information

 Eccotemp FVI12-LP 

The Eccotemp FVI12-LP Tankless Water Heater is a liquid propane fired, indoor tankless water heater designed for small to medium hot water production where you need more than one hot water application at the same time and is perfect for vacation cabins, cottages, and smaller homes. The FVI12 offers a 45-degree Fahrenheit temperature rise when operating at maximum flow capacity and a 77-degree Fahrenheit temperature rise at 2.3 GPM. Included in the box is a horizontal stainless steel vent kit, ready to install. The Eccotemp FVI12-LP's 110 volt UL listed power cord powers the internal exhaust fan and digital display. It only pulls approximately 2 watts idle and 10 watts during operation, making it ideal when energy conservation is paramount. 

Eccotemp FVI12 Product Manual

Product Features:

  • Sleek modern design
  • Digital temperature display
  • True 1/2" NPT water fittings
  • Manual water temperature controls
  • Liquid Propane Powered
  • 4 GPM flow capacity
  • Power ventilation for safety, efficiency, and venting options
  • Tested-Safe Electronic ignition system
  • Fully independent gas and water controls
  • Precise temperature and water flow adjustment
  • Uses gas only when hot water is on
  • Requires standard household 120-volt electric outlet
  • UL listed electrical components
  • Energy factor: 79%
  • Hot water capacity range: 0.93 - 4.8 GPM
  • Maximum / Minimum gas rate: 25,000 to 74,500 BTUs

Eccotemp FVI-12 LP Dimensions:

  • Height 24.75"
  • Width 15.25"
  • Depth 6"
  • Weight approx. 33 lbs.
  • Shipping weight 34.7 lbs.

What’s Included:


IMPORTANT: This product should also not be used with a bilge pump.

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.


Availability: Usually ships within 1 to 5 business day
Current Stock:
Condition: New
Power Type Liquid Propane (LP) Applications Cabins Applications Apartment/Townhome Installation Indoor Flow Rate 3.6 GPM Color White Condition New Map Zone Southern Region Map Zone Northern Region Map Zone Mid Region
Width: 15.50
Height: 25.00
Depth: 6.00
GTIN: 00891876002089
Bulk Discounts: Buy 2 - 10 and get 10% off

Customer Reviews 5 (11 Reviews) Write a review of this product

5 Stars
like the product very much

Really like waterheater good fast hot water.but I am extremely disappointed that it took 6 weeks to receive .online ad said 7 to 10 days sent out 2 emails talked with a person named mack after 4 weeks.he could not even give me defin ate shipping date. Hard for me to understand given the fact that I ordered direct from ecotemp. LEAVES a bad feling with me.

5 Stars
Living in the future.

Great product. 5 stars. Futuristic. Ecological. Think condensing the size. Move to replacing the tank heaters. Be creative with the aesthetics. Meditate on the earth and how you are leaving your footprint.

5 Stars
Excellent product at an excellent price

I've purchased 2 ECCOTEMP tankless hot water products. I very impressed with them. The ease of installation, and excellent performance at a excellent price. Great value. Great to experience this in a USA based company.

4 Stars
Thumbs up from country folks!

We live on an island in Wa. State. This is our 2nd unit weve purchased from Ecco-temp. The customer service has been top-notch. We are now enjoying free flowing hot H2O. Loving it! Life is sweet with Ecco-temp!

5 Stars
fine product and terrific service

I bought this product because it is one of the few gas fired heaters that can be used in-doors. I wanted a gas fired unit after reading on-line reviews that noted electric heaters are slow to heat up water. I am using an in-door cistern so I don't to waste water while I am waiting for it heat up. My sink and shower is about 8 feet from the unit, and the water line runs through a crawl space which is 40 degrees today. The cistern water temperature is probably less than 60 degrees. The water begins to flow warm in just a few seconds and is fully hot in less than 15 seconds. I have set the unit controls for approximately maximum water flow and minimum gas in order to keep the water from becoming too hot. I estimate that the unit will easily raise the water temperature 45 degrees as advertised, and probably more in my experience. This heater works exactly as advertised. The unit itself is sleek and attractive looking. It feels very sturdy and the cabinet is fairly heavy gauge metal. I have some experience as a home owner/handyman and I was able to install the heater relying on the directions that came with the product. However, I did make the mistake of over-tightening the water line and broke the brass connector. I called Eccotemp and left a message. Shortly thereafter I got a call from the help desk. I got excellent advice on how the obtain and install the replacement part. I ordered the part and it came in a few days. Next, I couldn't get the unit to fire up when I turned on the hot water spigot. The fault was mine. I didn't know at the time that my propane gas tank was empty. I emailed the help desk and got back a call within two hours, but when I didn't respond to the call, I got another call about 7:00 o'clock that night. This is the first time I have ever had a vendor pursue ME in order to get me the advise I was asking for. Terrific really. In addition to being out of gas, it turned that I didn't have a regulator on the tank. I got very specific advice on the kind of regulator I needed and how to install it.

5 Stars
Hot water supply for cargo trailer

FV112-LP installed easily in my cargo trailer. With a few adapters, it supplies hot water to a washer and laundry sink. Great backup water heater if the one in my RV ever quits.

5 Stars
Endless Hot Water

The FV112 provides all the hot water we need. We no longer have to worry about the capacity of our old water heater running out in the middle of a shower, or the second person to shower waiting for the tank to reheat. The economical price of the unit compared to the performance is quite a bargain.

4 Stars
1st impresion

Yesterday we received our first order and when we opened the box we were in love with the heater right a way. It's compact and solid. We are sure that our clients will be very satisfied with this heater and could't have made a better choice.

5 Stars
Absolutely Best Value

Just installed my fourth FV-112 LP. Can't beat this water heater. Well designed and well manufactured with an understandable manual. Will use this again in my next remodeling project.

5 Stars
Perfect for the cabin

Easy to install and works perfect for our cabin in the woods.