RL94IN 199,000 BTU, Non-Condensing Indoor Tankless Water Heater (Natural Gas)

This is my third Tankless hot water heater. Even if I replaced it again early, I would buy another one. Love the easy to install, easy to clean and endless hot water it provides. This unit gets back to the original install as far as ability and flow. I installed myself and found that the previous two installs which were done by professionals excluded the much necessary drain line for the non-condensing model. This one should last considerably longer. Great tankless hot water heater - I highly recommend.

I own a hotel and we have 3 Rinnai units, plus a 200 gal hot water tank that serves as a storage tank. The Rinnai units supply water to the tank and the tank supplies hot water throughout the hotel. I have a circulating pump always moving water throughout the lines in the hotel. This system works great! However, I have gone through many sets of these units due to our city water being very hard. The calcium builds up inside the small copper pipes inside the units and eats the copper. We flush the units out with vinegar on a regular basis (every 3 months) to help clean out the internal piping. This may help, but it doesn't seem to extend the life of the units very much. The heat exchanger will burn out in about 3 years, so be prepared to spend about $400 per unit at that time. These units work great until this happens. Again, I believe that it's a water type issue. If you have hard water, you might want to just go with the standard water heater. They last about 6 years and then replace it for $600.00 for another 6 years. Hope this helps someone.

WE bought a house that had this unit installed . . after coming from the "tanked" world, not sure I want to go back. The downside is the "warm up" time, but I can deal with that considering we have yet to run out of hot water in the last six months. It seemed like we were replacing water heaters at our old place every few years. IF this thing does last 10 years, it will be way worth it. Only time will tell, but overall, this is a really nice unit.

We bought the top of the line Rinnai installed by a reputable plumber in a new house. It takes FOREVER for the water turn warm in the nearest sink, about 15 feet away. Water gets lukewarm by the time it reaches the kitchen, about 5 minutes. It takes ten minutes for slightly warmed water to reach the bathroom. (Even with temp set at 135!) We had to install a tank under the bathroom to get hot water there. The so-called savings is negated by the high price and the high price of yearly maintenance. These tankless heaters are a high-priced scam. Stick with a good tank unit. You will be much better off.

we use for commercial restaurant and its working great.

Replaced a unit after 12 years of service.

this hot water header is very cost effective and supplies excellent act of hot water as needed

Hot showers are no longer hit or miss with Rinnai's RL 94IN in our house! We can have two showers and laundry going without running out of hot water. The key is in this appliance's capability to keep up with demand when it's needed. When it's not needed , the Rinnai doesn't waste energy filling a tank of water and keeping it warm. Another benefit converting to tank-less is that it takes up much less space than the bulky hot water tank.