Eccotemp FVI12 Indoor 4.0 GPM Natural Gas Tankless Water Heater
Eccotemp FVI12 Indoor 4.0 GPM Natural Gas Tankless Water Heater
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Eccotemp

Eccotemp FVI12 Indoor 4.0 GPM Natural Gas Tankless Water Heater

2.9 stars out of 7 reviews
(2.9)|
7 ratings
Eccotemp FVI12 Indoor 4.0 GPM Natural Gas Tankless Water HeaterEccotemp FVI12 Indoor 4 0 GPM Natural Gas Tankless Water HeaterEccotemp Liquid Propane Water Heater for Indoor 40 GPM Capacity with Accessories 6 Piece Pack
Size:4"L x 17"W x 11"H-Out of stock

About this item

  • Rated for 1-2 applications used simultaneously means that taking a shower and running a sink at the same time is effortless. The Eccotemp FVI12 is ideal for hot water heating applications in a smaller residential single-family home, condo, cabin, or apartments
  • 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
  • Limited Manufacturer Warranty (Heat Exchanger: 5 Years, Parts: 2 Years), live chat, appointments for product support, self-help guides will give you peace of mind that the Eccotemp FVI12 will keep you in hot water for years
  • What's Included: FVI12-NG tankless water heater, gas appliance shut off valve, mounting hardware, wall thimble, 18” straight pipe, and installation manual
  • To ensure the longevity of the Eccotemp FVI12, we recommend cleaning every six months with Eccotemp's patented, one of a kind EZ-FLUSH Descaling Kit to remove all water scale build-up
  • Not CSA Certified

At a glance

Water heater type
Tankless Water Heaters
Fuel type
Natural Gas
Brand
Eccotemp
Volume capacity
4 gal
Is energy star-certified
N
Features
Compact
$379.00
Price when purchased online
Not Available

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Customer ratings & reviews

2.9 out of 5 stars
stars7 ratings6 reviews
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Showing 1-3 of 6 reviews
Jul 1, 2025
anonymous
Item details
Size: Liquid Propane
5 out of 5 stars review
Verified Purchase
Great product. Great customer service.
Helpful?
Oct 4, 2017
Walmart customer
5 out of 5 stars review

Alaska Application

I couldn't be happier. I was told that a tank-less water heater would never work in Alaska because of the temp of the water coming out of the well. Our water comes out at approx. 42 degrees. And at full temp and full gas it will heat the water to 177 degrees and trigger the unit to shutoff because of the water being too hot. So we set the gas at about 1/3 to 1/2 and the water is heated to ~140 degrees which is plenty hot. Am ordering 3 more for our other cabins. Nothing better than a endless hot shower.
Helpful?
Apr 15, 2020
Gabriel
2 out of 5 stars review

temp inconsistent

I dont like this water heater because you cant adjust at shower head, resulting in water thats too cold or scalding hot! temp is not consistant, slowly gets hotter as you shower. I guess you get what you paid for.
Helpful?
reply from Supplier Response
Hello Gabriel. The Eccotemp FVI12 temperature regulation is manually controlled, meaning that it always uses the exact amount of gas and reduces water flow by the amount the knobs are set to. Because it operates in this manner, a faucet with low water flow will run at a higher temperate than one with a higher volume of water flow. The Eccotemp FVI12 cannot be set to maintain an exact temperature regardless of which fixture you use. If your water flow varies between fixtures, or if it is changed while the water heater is in operation, the temperature will change accordingly. For more information, 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!