Yep
Have you looked into Noritz at all. They have the same warranty, but personally after taking the required classes for both I feel the Noritz is a much better unit over all. One of the things that really impresses me with the Noritz is the dual flame burner which helps add the burning of any unused gas and really stabilizes the temperature. Also the controllers that come with the Noritz can do all the advance settings where the Rinnai comes with a basic controller if you wanted to raise the output temperature you would need to purchase their advance controller. Here is a link comparing the R75LS to the N-0751M-DVC
http://www.noritz.com/u/noritz_751m_vs_rinnai_75ls.pdf
One other thing you said the R75LS can do 3 normal showers, that is with 65º - 75º incoming water temperature. With the 50º incoming temperature the original poster stated he will be able to run 2 normal showers with no issues but once the third is ran he will notice a pressure drop.
Noritz does make a unit called the N-0931 that will do the 3 showers with 45º incoming water temperatures. But personally I would rather install a pair of N-751 units for just a few bucks more in cost (N-931 retails for $2,099 the N-751 retails for $1,299). This way with the 50º incoming water temperature you would be capable of getting 9.6 GPM (Duel R75LS would give 8.6 GPM). As well you would have redundancy with a second unit, meaning down the road when one needs repair the other one will still be providing hot water till you get the repairs done.
Actually, Yes I have. I used to use them and switched to Rinnai for several reasons. The link you post is one of them. It kind of irritated me that they would tell “untruths†about the competitor to sell their stuff. I’m ok with leaving things out. (All of them will do that) but to actually make stuff up is not cool. Dual burner or not, they both give you within 2* setpoint and the Rinnai remote keeps you from going over 140* because you will get hurt! You don't ever need over 140* in a house. It's not safe. Even 140* is way too hot.
They like to compare the 931 to the R75 don't they. They won't talk about the R94 will they. Guess why?
For instance…â€Rinnai’s concentric vent line uses less durable galvanized steel or plastic and requires cutting to adjust the vent lengths.†Not true. Rinnai is a heavy Aluminum inner and PVC outer concentric…JUST LIKE THE STUFF THEIR COPY CAT UNIT NOW USES. They came out with that one because Rinnai was kicking their tail with a vent that was easier to run. “You can cut it†is one way to say “You have to cut itâ€.
They also don’t want you to know that unless you pay more money for a DV unit, your water heater is a “Power vent†not “Direct vent" and has further clearances to windows or doors and is subject to sucking up whatever is in the space where it lives. (Like cat hair) Never a problem with Rinnai because ALL of their models are DV and all but one is single pipe concentric.
For instance #2: Commercail Grade/Standard Grade. Not true. The LS series is all commercial grade and Noritz is no thicker. That’s why Rinnai went to a 12 yr warranty. They don’t want you to know that.
#3: Full Diagnostic mode: That one is total BS and they know it. Ever Rinnai comes with a remote just like theirs except for a (1) builder grade low output model. All remotese have full diagnostics just like theirs. They also fail to tell you that you can have up to 4 remotes on a system with Rinnai and you can’t with Noritz. Which means if you want one at the unit, at the master tub and at the Kitchen sink…you can’t have it. If you installed the Noritz in the crawlspace you cannot have a remote at the heater for service and another at the bath or inside the house. Rinnai also has a remote that will up your master tub and shut off the water when it’s full! It even talks to you. They don’t want you to know that either. They also don’t want you to know that ONLY Rinnai has a Lime scale error code to warn you of a scale up condition BEFORE the unit goes out on a high temp warning which makes successful flushing of the unit a lot more likely…especially with well water.
#4 Simple High Elevation Adjustment. Let’s see, flip one dipswitch or unplug one clip. Not a big difference there is it? They want you to think it is.
#5 Built in pump control. They don’t want you to know that it only runs a 80 watt pump. Too small to be of use with their tankless water heater. They also recommend as does Rinnai the use of a De’mand system by ACT metlund or your warranty goes to 3 years (Both Lines) Noritz changed their warranty a couple years ago from 10/3/0 to 12/5/1 to match Rinnai because they were losing that battle.
While I’m at it, their BTU and Flow rate comparison is choosing a higher output Noritz against a lower Output Rinnai. Hardly honest don’t you think? They don’t happen to mention that with Rinnai you get 24/7/365 tech support…an Engineer in GA and they only have 8am eastern-8pm Pacific Mon-Fri, if you can get through.
Now all that said, Noritz makes a great product. If I could not get a Rinnai, I would go back to them. I just wish they were a bit more honest and had better tech support and better training. Is you do a Rinnai ASP class, you’d really see a difference. When you make a good product you don't need to make up stuff to sell it. THat kind of thing looses respect from me.
Don't worry though. As long as I'm around none of these guys are going to get away with anything.
So what really made me switch in the first place? The local Noritz rep does not know a tankless water heater from a hair dryer and with these things you better have a good local rep to help you when you need it. If your Noritz rep is great, I’ll bet that’s why you are so happy with them. Once I switched I learned the rest of the story. Now Noritz has a few advantages too, however since they withheld info and stacked the deck…I think I’ll keep them to myself... for now.
Don’t forget both models require a drain pan if the unit is to be installed in an area where a leak could cause damage! (See their installation instructions) If ou put in enough for long enough, you’ll find out what happens when they reach the end of their lifecycle. Look up “The Wall Saverâ€