Navien NPE-240A2-NG High Efficiency Condensing Tankless Water Heater Natural GAS
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- ½" 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
NPE-240A2 premium features and benefits
2" PVC venting up to 75 feet
This product allows for the use of various materials for venting, such as PVC, CPVC, polypropylene, and stainless steel, due to its low exhaust gas temperatures. This feature not only saves time but also reduces costs. Additionally, for added safety, the Vent Installation Detector (VID) is included.
Dual Venturi for field gas conversions. Dual Venturi system creates better combustion control and turndown ratio.
ComfortFlow® NPE-A2 built-in recirculation system
The patented ComfortFlow® system is the first to include a buffer tank, recirculation pump and fine-tuned controls into a tankless water heater.
Dual stainless steel heat exchangers for added durability.
EZNav™ Multi-line control with built-in intuitive software.
17.3" W x 27.4" H x 13.2" D (43.9cm W x 69.6cm H x 33.5cm D)
Specifications :
| Item | NPE-240A2 | |
|---|---|---|
| Heat Capacity (input) | Natural gas | 13,300 - 199,900 BTU/h (3.897 - 58.571 kWh) |
| Propane | 13,300 - 199,900 BTU/h (3.897 - 58.571 kWh) | |
| Efficiency ratings | UEF (NG & LP) | 0.95 |
| Flow rate (DHW) | 35°F temp rise | 11.2 GPM (42.4 l/m) |
| 45°F temp rise | 8.7 GPM (32.9 l/m) | |
| 67°F temp rise | 5.6 GPM (21.2 l/m) | |
| Dimensions | 17.3" W x 27.4" H x 13.2" D (43.9cm W x 69.6cm H x 33.5cm D) | |
| Boiler weight | 77 lbs (34.9 kg) | |
| Installation type | Indoor or outdoor wall-hung | |
| Venting type | Forced draft direct-vent | |
| Ignition | Electronic ignition | |
| Water pressure | 15-150 PSI (1.055-10.545 kg/cm2) | |
| Natural gas supply pressure (from source) | 3.5 " WC to 10.5 " WC (0.87 Kpa to 2.61 Kpa) | |
| Propane gas supply pressure (from source) | 8 " WC to 13 " WC (1.99 Kpa to 3.23 Kpa) | |
| Natural gas manifold pressure (min-max) | -0.03 " WC to -0.96 " WC (-0.0075 Kpa to -0.24 Kpa) | |
| Propane gas manifold pressure (min-max) | -0.02 " WC to -0.96 " WC (-0.005 Kpa to -0.24 Kpa) | |
| Minimum flow rate | 0.5 GPM (1.893 l/m), < 0.01 GPM (0.04 l/m) option* | |
| Connection sizes | Cold water inlet | 3/4" |
| Hot water outlet size | 3/4" | |
| Gas inlet | 3/4" | |
| Power supply | Main supply | 120V AC, 60 Hz |
| Maximum power consumption | 200 W (max 2 A), 350 W (max 4 A) with external pump connected | |
| Materials | Casing | Cold rolled carbon steel |
| Heat exchangers | Primary heat exchanger: stainless steel | |
| Venting | Exhaust | 2" or 3" PVC, CPVC, approved polypropylene and stainless steel 2" or 3" special gas vent type BH (Class II, A /B/C) |
| Intake | 2" or 3" PVC, CPVC, approved polypropylene and stainless steel 2" or 3" special gas vent type BH (Class II, A /B/C) | |
| Vent clearances | 0" to combustibles | |
| High elevations | 10,100 feet for both NG or LP gas. Please refer to Installation Manual for additional details and instructions. | |
| Safety Devices | Flame rod, APS, ignition operation detector, water temperature high limit switch, exhaust temperature high limit sensor, power surge fuse, burner high limit fuse, vent installation detector (VID) | |
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