Aquah Indoor Liquide Propane Gas Tankless Water Heater 16L / 4.3 Gpm, Whole House

Installation was fairly simple, once hooked up it started producing hot water instantly. The ignitor worked great and so far has started up each time with out a problem been running it for 2 days now

This is a good basic unit if your water pressure doesn't fluctuate much. If you are on a well with a pressure tank the temperature will fluctuate along with the pressure. With dedication and patience it is possible to adjust to a temperature range that is acceptable in the shower, going from a bit cool to a bit hot.On the good side, it was an easy change from the discontinued and dead Bosch. Very cheap to run.

Nothing I dislike about the heater. Seems to work well. Easy setup, as it was replacing an older one. Looks nice as well. I'm kind of indifferent about the plugin power source.

So far works fantastic, I really love this heater and very glade i bought it

Great water heater

Can't control the temperature in the season between Fall and Winter. Too cold in one and too hot in the other. Also, no hot water for one of the bathroom taps. Used to work fine with the original Bosch. Shuts off after 20 minutes for 5 minutes. Takes 3 shifts for jet tub.

I have owned and used several of these on cottages we own at our family campground. I use the 16L on my cabin and its served me well for the past 5 years. Its a bit oversized for a small cabin but works great. The other cabins are fitted with the 10L units and they all work really good! If you have hot water heater odor or sulfur smelling water, consider switching to a tank-less. These Propane heaters have lowered our energy bills by 80% over using electric water heaters.Pro's1.) The simplicity of these is when your not using them, you can plumb them to drain them after use without the fear of winter freezes. 2.) Ultra high efficiency, a propane tank last s a LONG time. 3.) minimal space required to mount/use. 4.) your not storing water in the heater unit, waiting for it to be used. 5.) cost!! The Aquah tank-less units are affordable, 1/5th the cost of the Rinnai or Bosch. 6.) Customer service and parts! If you need parts, make a call and parts will be at your door in 2 days in most cases.Con'sWhen water pressure is low, water comes out scolding hot. Our campground runs off spring water with pressure in the 28-35psi area. During the summer, the incoming water temp is 72-74* and this heater (16L) on its lowest setting, will scold you. we DO NOT experience this condition with the 10L units but this problem is due to our limited need and our particular application.

The Aquah 16L is a poor design. I had a Bosch on-demand for a few years and it died. While the Bosch was quirky, the Aquah is unusable. Basically an on-demand just can't be dumb and be useful. What does it need to be smart about?* Water flow: The faster water goes through the heater the less chance it has to heat it. Turning on too much hot water (like shower and clothes washer) doesn't give it enough time to heat the water. Running only just the kitchen sink at less than full blast lets the heater get the water too hot. On a well with a 40-60psi cycle the temp varies with the cycle.A little of that I was used to with the Bosch which did a little water mixing to moderate, but this one just swings temps wildly. When just running the sink, even with the gas setting pretty low, the water gets too hot and a safety switch cuts off the flame and it goes cold.* "On" rate: If the water isn't flowing enough the system either won't light the flame, or if it does get going but then you turn the sink down some, it's not enough flow and it cuts off. The Bosch I could keep going with a small flow at the sink. This one I had to keep the sink on almost full blast to keep it from cutting off.Likewise if you run the hot full but mix in some cold that pushes back on the hot and less hot flows and either it's not enough flow to keep going, or the hot is too hot and trips the safety cut-off. And a small tap, like a bathroom sink, might not get the heat to come on at all.* Gas level: The one I ended up switching to automatically varies the flame size. Lot's of water flowing? It cranks up the flame. Little water flowing? It reduces to a small flame so as not to overheat.The Aquah has manual water and gas flow controls but it's a catch 22. The water flow has to be all the way on hot, because any other setting mixes in some cold which pushes back on the hot and it becomes even harder to keep it going. If you set the gas level low so it doesn't overheat at the sink, then when you try to run two things it's only warm. If you crank up the flame to handle two things, then it's too much when running just the sink, it overheats and shuts down.I ended up going with a Takagi Jr only because it was the cheapest smart unit I could find. There are lots of others. Working directly with the US Aquah contact in Ohio was great. Very helpful and got the refund, but getting something with some smarts is a must.