Smart 40 Indirect Water Heater

Great product and price

Ordered a replacement tank. The 13 year original started to leak. Figured I would spend the money, so I wouldn't need to do any refitting. Wrong answer! It seems that the manufacturer has changed the orientation of the bungs, for the boiler connections, to the supply lines. My original tank had the boiler and supply lines running perpendicular to each other. The new tank came with bungs and supply fittings running parallel, and inline, to each other. Also, the T&P valve that supply house recommends, has a MIP thread, to install it to the stub out on the tank (just like my old tank). The new tank comes with a MIP stub out for the T&P valve, so you'll need a 3/4" FIP coupler to make it work.

Ease of installation and great product.,

Just installed 10/2021 so can't comment on functionality yet.

The water heater works wonderfully. Hooked up easily and the instructions were very good. The part that was not great was the freight shipping to get it. It took 9 days to get it to my local terminal. I live 4hours from where it was shipped.

The outer tank rusted out after 3 years. They never mentioned that this outer tank wasn't stainless steel also. The water is de-aerated through my boiler system so limited to no oxygen in system. This should never have happened. Way to much money for 3 years use.

I researched this tank before I purchased it, and one review said that it rusted out in a very short time. I read also that any boiler or tank will rust if you install it in an uncontrolled environment. So I made sure to install it in a insulated space where condensation would not occur. It is condensation that causes rust. But it started leaking in just 4.5 years. It has a 10 year warranty, so Triangle Tube first worked with me to confirm the tank was bad, an not just the tank's dry well. The tank was bad alright, so after They received some pictures of it and the area around it, they confirmed that it was bad and ended up sending me a new one. I hope it will last 20 years or more this time since these tanks are expensive. I would like to see Triangle Tube make it easier to drain the inner tank. Currently you have to siphon out the water to drain the inner tank while the outer boiler tank has a standard hose bib like a ordinary gas fired water heater. They need to make it easier to drain the inner tank.

First few years was good but , after that start leaks, and I can't believe it can rusted , because company said it " stainless steel" . Anyway have to replace that one. I have pictures of it .

In 2012 I thought this was the better way than a hot water coil. I spent $2,700 with the installation. I Found out online after the first leak that these tanks had a lot of issues. I'm going on my third thermostat today, only to find the local plumbing supply stopped selling Smart tanks a few years ago and no longer have the thermostats. I've wasted about $3,500 so far total for 7 years. Which translates to about 4 times what it would have cost for my usage with a coil. They should call these Dumb 40's.....STAY AWAY

It looks nice and works well until it leaks. The first one started leaking from the upper cold water connector after 4 years. The replacement tank started leaking from the bottom heater connection nipple at the tank after 9 years. Would not recommend based on our history