Noritz NRC661 Review
Review of the Noritz NRC661 tankless water heaters for indoor
and outdoor use, features,
specs, advantages and
benefits for your residential water and space heating.
NRC661
model is the latest design from Noritz that was released in 2013 as
the tankless water heater with the condensing technology. It is used
for potable water heating in homes where it satisfies demand for 2-3
people and can also be used in home heating. Due to the lower
temperature of the exiting flue gases, it
utilizes the 3" PVC venting that saves money due to its lower cost and
faster installation.
The NRC661 model is the high efficiency water heater that
utilizes the smart technology for the accurate and more stable water
heating and error diagnostics. By incorporating the tech data sheet
inside
the front cover of the water heater, the problems can be solved and
unit maintained conveniently and much faster. The
digital display at the bottom of the unit provides some useful info
such as the current hot water temperature, water flow and error codes
in a case of the unit failure.
Models review
Noritz NRC661-OD
Noritz NRC661-OD is the outdoor model that is designed for
installation outside and does not require the venting system. As an
accessory, you can by an recess box, a cover that protects the unit
from the harsh weather conditions.
Noritz NRC661-DV
As
opposed to the above outdoor model, Noritz NRC661-DV is the direct
vent unit that must be installed indoor only, with the vent system
installed vertically or
horizontally with the maximum vent length of 57' and 3" in diameter.
The most used pipe types are PVC or CPVC, which have been approved for
use
with zero clearance to combustibles. The indoor model is equipped with
the display window, found on the front cover, and it allows you to
check the status of unit and find the error codes.
Features review
- Small and compact size: saves the floor space.
-
Automatic ignition device.
-
Two heat exchangers for the high efficient water heating.
- Low temperature of the exhaust gases; 120 F.
-
The NRC661 uses the 1/2" gas line which easily
accommodates the existing gas line. -
Digital display.
-
Safety: flames rod, overheat and lighting prevention
device, freeze protection (indoor; -30F, outdoor; -4F), condensate
overfill, fan rotation detector. -
Potable water and space heating.
- Low NOx burner (20 ppm).
-
Warranty: 12 years on the heat exchanger.
- Remote
controller is optional.
Specification
| Models --- Specifications |
NRC661-OD outdoor |
NRC661-DV indoor, direct vent |
| Power (Btu/hr) |
15,000-120,000 | 15,000-120,000 |
| Water Flow (GPM) @ 30 F rise |
6.6 | 6.6 |
| Energy Factor EF |
0.91-0.93 | 0.91-0.93 |
| Min. Water Flow (GPM) |
0.5 | 0.5 |
| Activation rate (GPM) |
0.4 | 0.4 |
| Temp. settings (F) |
100-140 | 100-140 |
| Electric consumption (Watts) |
139 | 138 |
| Max. vent length (ft) |
57 | N/A |
| Weight (pounds) |
36 | 38 |
(Photos courtesy of Noritz)
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