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NRC661 120,000 BTU Direct Vent Condensing Residential Tankless Water Heater (LP)
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$1,107.41 each
In Stock
Get 7 Thu, Jul 9
Order by today, receive Thursday
MANUALS (4)
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Product Highlights
–
Propane
6.6 MAX GPM
Indoor Only
5 Year (Parts)/ 12 Year (Heat Exchanger) Warranty
Direct Vent
13.8" Width
Description
–
The ENERGY STAR rated NRC661, Noritz's newest efficient condensing model with a half inch gas line. Featuring the same energy-saving condensing technology as the rest of the Noritz eco-TOUGH Series of gas-fired residential tankless water heaters, the NRC661 has an Energy Factor of 0.91 for natural gas and 0.93 for LP. These ratings are nearly 10 points higher than that of a comparably sized, conventional tankless unit, and approximately 30 points higher than a standard, tank-type gas-fired water heater.
With a maximum input of 120,000 BTU per hour (BTUh), using a half-inch gas line up to 120 feet in length. A new, more accurate interpretation of the National Fuel Gas Code permits the use of the smaller-diameter gas piping for inputs up to 174,000 BTUh, as long as the water column pressure at the inlet of the unit is a minimum eight inches.
Features:
Accessories:
With a maximum input of 120,000 BTU per hour (BTUh), using a half-inch gas line up to 120 feet in length. A new, more accurate interpretation of the National Fuel Gas Code permits the use of the smaller-diameter gas piping for inputs up to 174,000 BTUh, as long as the water column pressure at the inlet of the unit is a minimum eight inches.
Features:
- High-efficiency low Nox Eco-Burner reduces emissions
- Liquid Propane tankless hot water heater
- Indoor Use Only
- ecoTough tankless condensing heater
- Cold and Hot water connection size: 3/4"
- Gas connection size: 1/2"
- Power Supply: 120 VAC (60 Hz)
- Exhaust vent diameter requirements: 3"
- Exhaust vent material requirement: PVC or CPVC
- Parts Warranty: 5 year
- Residential Heat Exchanger Warranty: 12 years
Accessories:
- Flame Sensor
- Overheat Prevention Device
- Lightning Protection Device
- Freeze Protection
- Keypad/Thermostat Display included
- Compatible Remote Controller Part RC-7651M
- Isolator Valve Part IK-WV-200-1-xx
- Pipe Cover Part PC-1S
- Power Cord included attached
Specs
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| Application: | Residential |
|---|---|
| Product Type: | Tankless Heater |
| Vent Type: | Direct Vent |
| Type: | Condensing |
| Installation Type: | Indoor Only |
| Fuel Type: | Propane |
| Gas Input: | 15000 to 120000 BTU/h |
| Efficiency: | 92% |
| Energy Factor: | 0.93 |
| Min Flow (GPM): | 0.5 |
| Flow Range (GPM): | 0.5 to 6.6 |
| Max Flow (GPM): | 6.6 |
| Width (Inches): | 13.8" |
| Depth (Inches): | 6.7" |
| Weight (lbs): | 39 lbs |
| Height (Inches): | 20.5" |
| Max Temp (F): | 140°F |
| Water Connection: | 3/4" |
| Gas Connection: | 1/2" |
| Warranty: | 5 Year (Parts)/ 12 Year (Heat Exchanger) |
| Energy Star Rated: | Yes |
| Venting Requirement: | PVC/CPVC |
| BTU (Max): | 120000 |
| BTU (Min): | 15000 |
| Flow Rate at 40F Temp Rise (GPM): | 5.8 |
| Flow Rate at 50F Temp Rise (GPM): | 4.6 |
| Flow Rate at 60F Temp Rise (GPM): | 3.8 |
| Flow Rate at 70F Temp Rise (GPM): | 3.3 |
Questions?
Speak with a real person who will go out of the way to help!
Call or text 888-757-4774
Monday – Thursday
8am–7:45pm
Friday
9am–7:45pm
Saturday – Sunday
9am–5:45pm
You May Also Need
31 Replacement Parts
Wiring Harness - NRC661-DV, SKJ70QS
SKU: SKJ70QS
NoritzIgnitor Replacement, ERDJ112
SKU: ERDJ112
NoritzPower Supply Cord, ERUJ001
SKU: ERUJ001
NoritzWiring Harness - Gas Valve, EVHJ016
SKU: EVHJ016
NoritzGasket - Exhaust Flue, EVSF023
SKU: EVSF023
NoritzO-Ring - Exhaust Flue 72.62, EVSF024
SKU: EVSF024
NoritzGasket - Ignition Plug, EULL003
SKU: EULL003
NoritzCircuid Board, SHC701M
SKU: SHC701M
NoritzCase - NRC661-DV, EVSA001
SKU: EVSA001
NoritzSight Glass Window, EVRK002
SKU: EVRK002
NoritzManifold Plate 09-14 (SET), SKJ70F7
SKU: SKJ70F7
NoritzBurner Damper 10-2, EVJC082
SKU: EVJC082
NoritzMounting Plate - Ignition Plug, EULC022
SKU: EULC022
NoritzFan Motor w/ Housing, SKJ70BG
SKU: SKJ70BG
Noritz
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Product Reviews
4.6 out of 10 reviews
90% would recommend this product
5 star
90%
4 star
0%
3 star
0%
2 star
0%
1 star
10%
Most Liked Positive Review
Noritz NRC661
I installed this unit along with all plumbing (3/4" propane black pipe, pex water lines, schedule 40 venting/intake, and solar electricity) in one weekend at remote 1.5 bathroom cabin. I only have a 200 watt solar energy electrical system with 2 golf cart batteries but this heater seems to draw little wattage during temporary use (maybe 60 W) and almost nothing in standby. After talking with technical people, I suggest using 3/4" black pipe not 1/2" even though the unit has 1/2" connection. Also, use short large diameter flex connector sufficient for 120K BTU or more. I have only used the water heater for 1 day, but it worked great---instantly! I cannot tell the difference between this heater and the 30 gallon tank that it replaced. The 3" PVC venting made it very easy. Unless you install in a very large room you will need to run the intake PVC line outside--it does suck air but it is quiet. I installed the Noritz threaded isolation valves--which were great. It does get crowded at the bottom of the unit with multiple lines so be prepared to make adjustments. I did not buy the remote control, so it is not possible to set the temperature below 120F, which was a little warm if no cold water was allowed to mix.
VS
Most Liked Negative Review
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I would not buy again
Im using this hot water heater in a radiant heating system it works great until it gets below 0. Ive had 2 of them freeze up and bust
Its mounted indoors ive tryed talking to noritz and all they can tell me is it has freeze protection to bad it dont work
Showing 1-10 of 10 reviews
This company did a great job !
I needed a replacement tankless water heater and truly, what a blessing that the Supply House was there. I found the exact replacement so it went right in place of the existing plumbing, venting and electric. All that and the best price around. Now for the delivery, I don't know how they are able but in came exactly when expected which was only a few days after the purchase.
I will definitely be looking to them first when I need anything in the future.
Thank you.
Blee-ver
North Carolina
8 months ago
Verified Buyer
Was this review helpful to you?
Wonderful transaction, hot water is back
After at least ten years of flawless running or old water heater had the error 29 and there was no way of fixing it without a repair technician.
So, we found one for a great price on Supply House with a lightning fast delivery.
DIY install was a breeze. Up and running.
Wooffi
Arlington TN
11 months ago
Verified Buyer
Was this review helpful to you?
I would not buy again
Im using this hot water heater in a radiant heating system it works great until it gets below 0. Ive had 2 of them freeze up and bust
Its mounted indoors ive tryed talking to noritz and all they can tell me is it has freeze protection to bad it dont work
Jim
Grinnell iowa
2 years ago
Was this review helpful to you?
yes
great hot water saves on gas
John
Stroudsburg Pa
3 years ago
Verified Buyer
Was this review helpful to you?
Easy and straight forward install- and works great.
Easy packaging and install. used nortiz valve set. Fir sure would install again for a client project.
Jamey
Greater Cincinnati, OH/IN/KY
3 years ago
Verified Buyer
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I would buy from this company again
Very efficient
LeesieLou
Whitesboro Texas
4 years ago
Verified Buyer
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A+++ excellent
Fast shipping came well protected
None
Apple valley CA
5 years ago
Verified Buyer
Was this review helpful to you?
Yes - I think it is the most efficient water heater
It is our heater of this size the last one lasted 16 years - we have three of these - one for our home's hot water and two that heat the floors in our 100 plus year old house. When we started using it for our home hot water instead of a 30 gal tank - it reduced of propane use by 35% - the other two keep the house very comfortable in the winter - these two use less propane than our high efficient Lennox furnace - go figure !!!
MAC
Hesston, Kansas
5 years ago
Verified Buyer
Was this review helpful to you?
Noritz NRC661
I installed this unit along with all plumbing (3/4" propane black pipe, pex water lines, schedule 40 venting/intake, and solar electricity) in one weekend at remote 1.5 bathroom cabin. I only have a 200 watt solar energy electrical system with 2 golf cart batteries but this heater seems to draw little wattage during temporary use (maybe 60 W) and almost nothing in standby. After talking with technical people, I suggest using 3/4" black pipe not 1/2" even though the unit has 1/2" connection. Also, use short large diameter flex connector sufficient for 120K BTU or more. I have only used the water heater for 1 day, but it worked great---instantly! I cannot tell the difference between this heater and the 30 gallon tank that it replaced. The 3" PVC venting made it very easy. Unless you install in a very large room you will need to run the intake PVC line outside--it does suck air but it is quiet. I installed the Noritz threaded isolation valves--which were great. It does get crowded at the bottom of the unit with multiple lines so be prepared to make adjustments. I did not buy the remote control, so it is not possible to set the temperature below 120F, which was a little warm if no cold water was allowed to mix.
WaterMan
Cypress Island, WA
7 years ago
Verified Buyer
Was this review helpful to you?
TANKLESS
Replaced a on demand. with a better on demand. We will see how the warranty will hold up. Hopefully I will not need it thanks!
yo
utah
12 years ago
Verified Buyer
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Product Q&A
1 Question1 Question
Q: does this unit have high altitude capability will it work at 9,500 ft.
Asked by dd 12 years ago
Add your answer
Verified Reply- SupplyHouse StaffThis unit is only approved for installation up to 4500 ft up to sea level.
Was this review helpful to you?
- nantucketplumber
In the installation manual on page 9, it shows high altitude settings on the dip-switches up to 8,000 ft and above I believe!
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