|Item Weight||82 pounds|
|Product Dimensions||10 x 18.5 x 26 inches|
|California residents||Click here for Proposition 65 warning|
|Item model number||RUC98iN|
|Item Package Quantity||1|
|Flow Rate||9.8 GPM|
|Special Features||MC-91-2US controller included|
|Usage||Indoor use only|
Residential: Limited 12-year on heat exchanger, 5-year on parts, 1-year on labor (5-year optional on labor)
Commercial: Limited 5-year on heat exchanger, 5-year on parts, 1-year on labor (2-year optional on labor)
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Rinnai RUC98iN Ultra Series Natural Gas Tankless Water Heater, Concentric/Twin Pipe Installation
|Price:||$1,540.50 & FREE Shipping. Details|
Want this professionally installed?
- Mounting of 1 new customer-supplied heater
- Attaching water pipes and any needed gas lines
- System test and clean up
- Haul away of old unit
- Some areas require special permits for this service. Depending on your location, pro may need to acquire proper documents at an additional cost.
- Pro will contact you within 1 business day to schedule
- Kick back and only pay when the job is done
- Backed by Amazon's Happiness Guarantee
- Book the service directly on Amazon
- Receive confirmation within 1 business day
- Backed by Amazon's Happiness Guarantee
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This item Rinnai RUC98iN Ultra Series Natural Gas Tankless Water Heater, Concentric/Twin Pipe Installation
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|Sold By||Amazon.com||Amazon.com||PHENTER SALES||Amazon.com||Amazon.com||Amazon.com|
|Item Dimensions||18.5 x 10 x 26 in||10 x 12.5 x 26 in||17.75 x 11.25 x 24.88 in||14 x 9.3 x 23 in||9.3 x 14 x 23 in||13.8 x 6.7 x 20.3 in|
Rinnai takes tankless water heating one step further with condensing technology that delivers more efficiency than ever before. Enjoy all the same tankless benefits you’ve come to expect from Rinnai, plus even greater energy savings. Features: 95% Thermal Efficiency Natural gas or propane Indoor Installation Only 98° F to 140° F Residential Temperature Range 98° F to 185° F Commercial Temperature Range Commercial Controller Must be Purchased Separately Gas Rate Input BTU's: 15,200 - 199,000 Electronic Ignition Meets California and Texas NOx Emissions Standards Compatible with Full Line of Rinnai Digital Controllers 12-Year Warranty on Heat Exchanger, 5 Year Parts, 1 Year Labor for Residential Installations Specifications: Width: 18.5" Height: 26" Depth: 10" Weight: 61.7 lbs Gas Connection: 3/4" Water Connection: 3/4"
Top customer reviews
I replaced an existing water heater. Because the venting was not certified I had to replace it.
There is a slight drop in water pressure. I noticed on my dual head shower, but not on the water saving heads. No issues running two showers at the same time. It's very quiet. There wasn't any significant change in how long it takes hot water to reach the 2nd story tap.
Support from Rinnai was fantastic and answered all my questions within a few minutes of calling.
We switched from electric to gas. Our power bill went down significantly, but we only pay a little bit more for gas per month. The unit will pay for itself in a couple of years.
At first I added a small circulation pump so we would have instant hot water in the house, but it was too small so the unit would not always fire. I replaced the small pump with the Rinnai GTK15 kit which comes with a large pump and it's been running much better.
Since the pump doesn't run continuously, the water temperature does fluctuate a bit at first; it would be nice if the unit had a small holding tank to compensate for this.
Update July 2017
We've had the unit for 2 years and I updated my review from 4 to 5 stars. It has been working flawlessly and the water temperature is constant no matter if we use a lot or a little of water.
After doing my homework, I found that for the added cost, a highly efficient condensing unit was my best bet. Prices have come down and quality/technology is where it needs to be for me. To do this right, I knew the unit had to be mounted on an exterior wall and vented directly outside (in my circumstance). After calling a few plumbers, the estimate came in at $3,800 for the unit installed. This is the sticker price that causes most people shell shock and also why there is so much debate over return on investment and that these are not worthwhile. Well, I decided to do this myself. I settled on the RUC98i after many positive reviews. Unfortunately I did not purchase through Amazon as I found it cheaper w/o sales tax online, however I am a loyal Amazon shopper so I thought I would write a review here.
After purchasing the unit and using the Rinnai web site to identify the correct vent piping, I read the instructions and planned the job. I had to run new water lines in my basement to tap into the existing hot and cold lines. I also had to run a gas line. In all, I added about 80' of 3/4" copper pipe connected with Sharkbites (I am lazy), although I could have saved a lot of money just soldering. The gas line.... black pipe is relatively cheap and after careful measurements and some free custom cuts at Home Depot, the gas line was installed and tapped into the main feed Water line plumbing - 2.5 hours; gas - 2 hours. Hanging the unit on my concrete wall was the hardest part and most time consuming, but that is probably because I had the "assistance" of my father-in-law, but that's another story. Oh, and I installed a new dedicated outlet for the unit so with running new Romex to my panel, that was an hour. Finally, venting the unit.... cutting a 5.5" hole in my outside wall from the basement, inserting concentric pipe, and sizing/cutting - 2 hours. In short, give yourself a full day starting early, or 2 days to be safe. I am a 38 year old IT professional that knows how to use a hammer and I fit the mold of making several trips to home depot for projects because I forgot X, realize I then need Y, and end up with Z. I also know how to use google and youtube for instructions. I installed the unit myself, it is NOT hard, I am a weekend warrior at best. If I can do it..... many of you can too.
- Hot water. Endless. I have it set to 120 and there is no need for me to go hotter. I do not have a need for scalding hot water, although this unit can do that, I am choosing not too. Small children in my house and 120 is just right.
- Space - The new unit occupies a very small footprint and I dont have to worry about my old school tanks ever again.
- Quiet. All you hear is what sounds like a small fan. No noticeable noise unlike some units I have read about.
- My unit stopped working on day 2. Wait, WHAT? Yes, it stopped working while I was in the shower. Heaven turned to ice cubes. It was my own darn fault. The unit shut itself off and flashed an error code. Upon looking up what the code meant in the owners manual, sure enough "Condensate line or filter is clogged". Basically, there is a condensate line you hook up where condensation from the heat exchanger exits the unit (by design). The water drips in there and is carried away to a drain. Well, I forgot to vent the line and there was negative pressure when water started to accumulate. I simple trip to the depot got me the $3 in parts to fix.
- Peace of mind: I am using significantly less gas, saving money on my gas bill, reducing my carbon footprint, and will save money in about a year over heating 2 separate tanks. If I had 1 tank, the breakeven would have been about 2 years but again, that is if you install yourself. I don't know what a plumber charges to install a standalone traditional tank.
The only drawback - which is negated, is that I am not eligible for the federal tax rebate on this HE unit because I didn't have a professional perform the install. However, with the money I saved on installation, I am WAY ahead of that.
A few things to watch out for...
- Identify the new location for your water heater. I chose the outside wall as the venting and associated plumbing would be minimal - a safe bet for tankless indoor water heaters.
- Locate your hot and cold water lines and where you are going to tap in. You can use PEX and in retrospect, I could have saved a lot of money, but the house is already copper throughout, and for a primary water heater..... I am old school, keep it standard throughout.
- Measure your venting properly. I underestimated and purchased a 12" horizontal concentric vent thinking it would just enter the house, make a 90-degree turn and I would just tap into my vertical vent pipe. I was a darn INCH SHORT, had to order the 19" which delayed my install. Now the new 19" vent sticks out from the house about 6 inches, but so what? I can cut it down if i want, but it's the dead of winter right now and I'm not worried about it.
- Locate near a drain to minimize the condensate line length.
- You can run longer lengths of venting pipe, however I decided to Keep It Simple and relocate.
- You don't have to use Concentric pipe, but I highly recommend for less headache and a cleaner install.
- If you install on a concrete wall invest or borrow in a hammer drill. I used a standard drill for my Tapecon and was spewing out colorful 4-letter words because I was making slow progress drilling 4 holes in my foundation. I didn't know what a hammer drill was and assumed drilling into concrete was like wood, just more elbow grease.... not so much, there is a method to the medium!
5 stars and thrilled. With proper maintenance, I am confident this unit will perform for decades to come. If it doesn't, I'll be sure to update this review!