Navien NPE240A2 199,900 btu/h Ultra High Efficiency Advanced Condensing Tankless Water Heater

Description
Features
1/2 gas pipe capable up to 24′
Field convertible gas system
Ultra condensing efficiency
Dual stainless steel heat exchangers
Low NOx emissions (20ppm)
SCH 40, 2″ venting up to 75′
Cascading capable
EZNav multi-line control panel
Built-in HotButton control panel
Common vent up to 12 units

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Product Description
Additional Info

Specification	Value
Capacity	11.2 gal
Coating	White
End Connection	NPT x NPT
End Connection 1	NPT
End Connection 2	NPT
Energy Star Compliant	Yes
Height	27-2/5 in.
Installation Type	Wall Hung
Lead Law Compliant	Yes
Material	Stainless Steel; Plastic
Material Type	CPVC; 40LPVC; Polypropylene
MBH	199
Power Source	Gas
Pressure – Maximum	150 psi
NSF Certified	Yes
Vent Type	Forced Draft Direct Vent
Volts	120V
Watts	350 W
Weight	76.94 lb
Application	Residential; Commercial
Product Type	Residential Tankless Water Heaters
Energy Factor	0.96
Fuel Type	Liquid Propane Gas; Natural Gas

NPE-240A2 QuickFacts

Dimensions

43.9cm W x 69.6cm H x 33.5cm D (17.3″ W x 27.4″ H x 13.2″ D)

Front view of NPE-240A2 condensing tankless water heater
Overhead view of NPE-240A2 condensing tankless water heater
Bottom view of NPE-240A2 condensing tankless water heater
NPE-240A2 condensing tankless water heater diagram legend

Certification Summary

All NPE-2 models convertible NG ↔ LP	Yes
CSA	Yes
NSF (Standard 5)	Yes
Low Lead (<0.25 percent)	Yes
SCAQMD 1146.2 (NOx, <20ppm)	Yes
AHRI number	206368359
Energy Star certified	Yes
ANCE NOM certified	Yes

Efficiency Ratings

Uniform Energy Factor (UEF)	0.95
MAX l/m (37°C Rise)	5.6
Annual Energy Consumption (NG)	179.0 therms/year
Annual Energy Consumption (LP)	741.9 L (196 gal)
Natural Gas Estimated Cost	$250
Propane Estimated Cost	$606

*Based on U.S. DOE test procedures. Costs based on CA$1.40 per therm NG, CA$3.09 per gallon propane.

Temperature Rise

Temp Rise	NPE-240A2 Flow
19.4°C (35°F)	42.4 l/m (11.2 GPM)
22.2°C (40°F)	37.1 l/m (9.8 GPM)
25°C (45°F)	32.9 l/m (8.7 GPM)
27.8°C (50°F)	29.5 l/m (7.8 GPM)
30.6°C (55°F)	26.9 l/m (7.1 GPM)
33.3°C (60°F)	24.6 l/m (6.5 GPM)
36.1°C (65°F)	22.7 l/m (6 GPM)
38.9°C (70°F)	21.2 l/m (5.6 GPM)
41.7°C (75°F)	19.7 l/m (5.2 GPM)
44.4°C (80°F)	18.5 l/m (4.9 GPM)
47.2°C (85°F)	17.4 l/m (4.6 GPM)
50°C (90°F)	16.7 l/m (4.4 GPM)
55.6°C (100°F)	14.8 l/m (3.9 GPM)
61.1°C (110°F)	13.6 l/m (3.6 GPM)
66.7°C (120°F)	12.5 l/m (3.3 GPM)
72.2°C (130°F)	11.4 l/m (3 GPM)
77.8°C (140°F)	10.6 l/m (2.8 GPM)

DHW Capacity

Natural gas	13,300 to 199,900 BTU/h
Propane	13,300 to 199,900 BTU/h

Operating Cost Comparison

System	Usage	Annual Cost
Navien Tankless	179 therms	$250
Other Tankless	228 therms	$319
189 L Tank	293 therms	$409

Specifications

Heat Capacity (NG)	13,300 to 199,900 BTU/h
Heat Capacity (LP)	13,300 to 199,900 BTU/h
UEF	0.95
Flow Rate 19°C Rise	42.4 l/m (11.2 GPM)
Flow Rate 25°C Rise	32.9 l/m (8.7 GPM)
Flow Rate 37°C Rise	21.2 l/m (5.6 GPM)
Dimensions	43.9cm W x 69.6cm H x 33.5cm D
Weight	34.9 kg (77 lbs)
Installation	Indoor or outdoor wall-hung
Venting	Forced draft direct-vent
Ignition	Electronic ignition
Water Pressure	1.05 to 10.55 kg/cm² (15 to 150 PSI)
NG Supply Pressure	3.5 WC to 10.5 WC
LP Supply Pressure	8 WC to 13 WC
NG Manifold Pressure	-0.03 WC to -0.96 WC
LP Manifold Pressure	-0.02 WC to -0.96 WC
Minimum Flow Rate	1.9 l/m (0.5 GPM), option 0.04 l/m
Cold Water Inlet	3/4
Hot Water Outlet	3/4
Gas Inlet	3/4
Power Supply	120V AC, 60 Hz
Max Power	200 W, 350 W w/ pump
Materials	Cold rolled carbon steel casing, stainless steel heat exchangers
Venting Options	PVC, CPVC, polypropylene, stainless steel, 2 or 3 inch
Vent Clearances	0 to combustibles
High Elevation Rating	Up to 10,100 ft
Safety Devices	Flame rod, APS, temp limits, exhaust sensors, fuses, VID