Mor-Flo Water Heaters

Everything you need on Mor-Flo Water Heaters, including model details, industry rankings and customer reviews, all in one place.

Mor-Flo Water Heater Overview

Corporate History

Mor-Flo water heaters were manufactured and sold from the 1970’s into the 1990’s. They were manufactured by American Appliance Mfg., a subsidiary of Mor-Flo Industries Inc. Both Mor-Flo Industries and American Appliance Mfg. appear to be out of business.

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Consumer Reviews of Mor-Flo


  • Very Satisfied
  • Somewhat Satisfied
  • Neutral
  • Somewhat Unsatisfied
  • Very Unsatisfied
  • #6 of 51 Water Heaters
  • 66.67% of customers recommended

Product Lines

Mor-Flo electric water heaters were produced in 40- and 50-gallon models. Smaller units, as small as 6 gallons, were also produced for mobile homes and recreational vehicles.


Mor-Flo water heaters were covered by a 10-year warranty.

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Mor-Flo Water Heater Reviews

Showing 1-5 of 6 reviews

"Faulty drain valve. Have it replaced asap. Breaks from water pressure."

2.0 rating
Somewhat Unsatisfied

The water heater has performed well for several years, but the drain valve is plastic and after a few years the plastic gave way under normal water pressure. Warning have it replaced immediately. They may have revised it recently, but it worth the expense to have it replaced under any conditions. Flooded two apartments in our building before the water could be turned off. I would hope that nothing else in the unit as crucial as this valve, that is subject to full water pressure, is made of plastic or such material. Very upsetting that they would use plastic that becomes very brittle with age and breaks at the threaded portion of the valve!

L Wagner

Sun City, CA

"38 years and still works great!"

5.0 rating
Very Satisfied

It is electric and was installed in 1981 and in 2019 still works perfectly! Nothing has ever been changed! Ah… when things were built to last!


Southern, WI

"The Mar-Flo Submerged Chamber Gas Water Heater"

5.0 rating
Very Satisfied

I bought this water heater in 1986, replacing a conventional "burner under the bottom" water heater which had started leaking in only 8 years. The MarFlo water heater has worked perfectly for the past thirty- two years and only needed the thermostat replaced once. This last time the thermostat failed, I decided to switch to a tankless electric water heater because I have a large solar electric system. But I simply wanted to say that this Mar-Flo water heater has had a longer life than any water heater I have ever heard of. And I am sad that Mar-Flo is no longer in business.


Lakeside, CA


1.0 rating
Very Unsatisfied

Ours is 27 years old and going strong!! What more can you say?

Rick Miller

Appleton, WI

"It has been a good one and still is…"

5.0 rating
Very Satisfied

This electric 40 gallon was installed in home when it was built in November 1988. It is rated energy efficient. I drained the bottom of the tank last year. It was the first time in 27 years. It looked good for the age, no rust and very little sediment. It ran crystal clear in 3 minutes. I will never replace it unless it needs to be. Never had any issues, never had either element fail. It is located in the basement and it still looks like new.

Randy Jackson

Winston Salem, NC

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