Eccotemp FVI-12-LP: Efficient Propane Water Heater for Small Houses


The reliable liquid propane powered Eccotemp FVI12-LP makes an efficient in water heating for households. It delivers 4 GPM flow capacity and maximum 74,000 BTU. This unit is not just designed for heating but also its aesthetics makes it a modern water heater fit for easy installation while maintaining great performance.


Very limited warranty only up to 2 years compared to its close competitors that provide up to 10-12 year warranty.

Check Eccotemp FVI-12-LP Price on Amazon

Eccotemp FVI-12-LP is a solid, well-performing hot water heater that will do the job well once you get it installed. Using a manual tankless does have a learning curve attached, but it’s easy to figure out and for the price, this little water heater can’t be beaten.

Product Performance and Features

This indoor tankless water heater is designed for small spaces where there isn’t going to be more than two or three people using the hot water at the same time. It is the perfect water heater for small apartments, townhomes and cottages. This water heater is almost completely powered by liquid propane gas and it comes with a venting kit already included, made of stainless steel, so that you can install it yourself.

There is a digital display that comes with the unit as well as an exhaust fan, both of which are powered by the 110 volt power cord, but it uses very little energy because most of the unit is powered by liquid propane gas. The power consumption for the fan and display is 10 watts while it is running and 2 watts when it is idle. It features true ½ water fittings and is a modern, aesthetically pleasing design that has good safety features built right into it.

This is also one of the smallest and easiest units to manage. It is only 20 pounds and it measures just 15×24 inches. Included is a stainless steel ventilation kit. It does require a 120 volt electrical connection because of the components that run on electricity.

  • 1/2″ NPT water water fittings
  • Uses liquid propane gas
  • Power ventilation
  • Electronic ignition system
  • Digital Display (Can display error code)
  • Gas and water controls independent.
  • Temperature and water flow can be adjusted
  • Stainless vent kit included
  • Only uses gas when water is on
  • Requires standard household 120 volt electric outlet
  • Energy factor: 79%
  • Power ventilation

Heating Capacity and Output

  • 4 GPM flow capacity
  • 25,000 min – 74,000 max BTU

Reliability and Warranty

From the information and feedback that other customers have left, this water heater is one of the most reliable ones on the market today for the price range. With regards to safety, this unit is UL certified which means its electronic parts pass the safety standards. As for the warranty, it comes with a two-year warranty.

Read Eccotemp FVI-12-LP Customer Reviews on Amazon


The Eccotemp FVI-12-LP is a great water heater for the price, and in fact, may perform as well as water heaters that cost twice or three times as much. It has a 2 year warranty so you know the company is standing behind their product and will support it if something goes wrong. It is designed to deliver hot water only small spaces so you probably won’t have a lot of success in 3 or 4 bedroom houses, but for everything else it should work just fine and give you hot water reliably for many years to come.

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