There are two major types of water heaters, those with coils and the twin walled tank. The water heater which we manufacture, the Tank-in-Tank, doesn't fall within either of these categories. The difference between our water heaters and those with coils is clear since in the former the primary fluid heats the domestic hot water from the outside while the other heats it from the inside out. On the other hand the twin walled water heaters have an area near the bottom which is not heated and the heat transfer surface is smaller than in the Tank-in-Tank.
Stainless steel was chosen for its well established reliability and advantages over other materials
Most important characteristic of the Tank-in-Tank system is its capability for auto-descaling
Long life expectancy combined with the reduced requirement for regular maintenance
Stainless steel, as its name suggests, is resistant to corrosion
Exclusive "Tank-in-Tank" Design
Self cleaning / self descaling heat exchanger
3 Times faster than conventional gas or electric water heaters
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Water Heater Profile
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out of 4 reviews
33%recommend this product
Showing 1-4 of 4 reviews
Oct 10, 2020
I bought this because it’s what I already had and...
I bought this because it’s what I already had and thought pipe connections would all line up. They moved the furnace connections and had to repipe those. I like heater but hard to find good temp setting. Temp swing is big. Definitely add temp control valve after heater.
Nov 22, 2019
As one reviewer stated.....Garbage
The first unit started leaking within a few years. I’m on my second unit, which was replaced through their horrific warranty. 2 years later it’s starting to leak again. Avoid this unit!!!!!!
6 found this review helpful
Oct 28, 2019
Garbage failed within 2 yrs and Triangle Tube won't honor warranty , it's the second one that fai...
Garbage failed within 2 yrs and Triangle Tube won't honor warranty , it's the second one that failed their boilers are problematic also, horrible customer service buy another brand!!!