- Tankless
- Gas – PROPANE
- Gas – NATURAL GAS
High Efficiency Condensing Tankless Water Heater
MODEL: NPE-210S2
High Efficiency Condensing Tankless Water Heater
NPE-210S2
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Overview
- 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
Dimensions
| Width | 17.3″ (43.9 cm) |
| Height | 27.4″ (69.6 cm) |
| Depth | 13.2″ (33.5 cm) |
Connections Sizes
| (A) Air Intake | 2″ |
| (B) Exhaust Gas Vent | 2″ |
| (C) Hot Water Outlet | 3/4″ |
| (D) Gas Inlet | 3/4″ |
| (E) Recirculation Inlet | 3/4″ |
| (F) Consensate Outlet | 1/2″ |
| (G) Cold Water Inlet | 3/4″ |
Certification Summary
All NPE-2 models are field convertible from NG to LP gas.
Product Approvals
| CSA | Yes |
| NSF (Standard 5) | Yes |
| Low Lead (<0.25%) | Yes |
| SCAQMD 1146.2 (NOx, <20ppm) | Yes |
| AHRI Number | 206368361 |
| Energy Star Certified | Yes |
Efficiency Ratings*
| Uniform Energy Factor (UEF) | 0.96 |
| MAX GPM (67ºF Rise) | 5.3 GPM (20.1 l/m) |
Annual Energy Consumption * (Residential)
| Natural gas (Therms/Year) | 177.0 |
| Propane (Gallons/Year) | 194 gal (734.4 l) |
| Natural Gas Estimated Operating Cost** | $193 |
| Propane Estimated Operating Cost** | $468 |
*Based on U.S. Department of Energy (DOE) test procedures.
** Based on a national avergae natural gas cost of $1.09/therm, propane cost of $2.41/gallon.
Certifications / Qualifications
Temperature Rise
| Temp Rise | NPE-210S2 |
|---|---|
| 35 °F (19.4 °C) rate | 10.1 GPM (38.2 l/m) |
| 40 °F (22.2 °C) rate | 8.8 GPM (33.3 l/m) |
| 45 °F (25 °C) rate | 7.8 GPM (29.5 l/m) |
| 50 °F (27.8 °C) rate | 7.1 GPM (26.9 l/m) |
| 55 °F (30.6 °C) rate | 6.4 GPM (24.2 l/m) |
| 60 °F (33.3 °C) rate | 5.9 GPM (22.3 l/m) |
| 65 °F (36.1 °C) rate | 5.4 GPM (20.4 l/m) |
| 70 °F (38.9 °C) rate | 5 GPM (18.9 l/m) |
| 75 °F (41.7 °C) rate | 4.7 GPM (17.8 l/m) |
| 80 °F (44.4 °C) rate | 4.4 GPM (16.7 l/m) |
| 85 °F (47.2 °C) rate | 4.2 GPM (15.9 l/m) |
| 90 °F (50 °C) rate | 3.9 GPM (14.8 l/m) |
| 100 °F (55.6 °C) rate | 3.5 GPM (13.2 l/m) |
| 110 °F (61.1 °C) rate | 3.2 GPM (12.1 l/m) |
| 120 °F (66.7 °C) rate | 2.9 GPM (11 l/m) |
| 130 °F (72.2 °C) rate | 2.7 GPM (10.2 l/m) |
| 140 °F (77.8 °C) rate | 2.5 GPM (9.5 l/m) |
DHW Capacity
| Model | NPE-210S2 |
|---|---|
| Natural gas | 12,000 – 180,000 BTU/h (3.516 – 52.74 kWh) |
| Propane | 12,000 – 180,000 BTU/h (3.516 – 52.74 kWh) |
HERS and LEED
Lower HERS home index score
U.S. Green Building Council LEED Points
| Water Heater | 1 Point |
|---|---|
| Location | 2 Points |
| Recirculation | 3 Points |
Specifications
| Heat Capacity (input) | Natural gas | 12,000 – 180,000 BTU/h (3.516 – 52.74 kWh) |
|---|---|---|
| Propane | 12,000 – 180,000 BTU/h (3.516 – 52.74 kWh) | |
| Efficiency ratings | UEF (NG & LP) | 0.96 |
| Flow rate (DHW) | 35°F temp rise | 10.1 GPM (38.2 l/m) |
| 45°F temp rise | 7.8 GPM (29.5 l/m) | |
| 67°F temp rise | 5.3 GPM (20.1 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 | 73 lbs (33.1 kg) | |
| Installation type | Indoor or outdoor wall-hung | |
| 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 -0.76 ” WC (-0.0075 Kpa to -0.19 Kpa) | |
| Propane gas manifold pressure (min-max) | -0.02 ” WC to -0.76 ” WC (-0.005 Kpa to -0.19 Kpa) | |
| Minimum flow rate | 0.5 GPM (1.893 l/m) | |
| Connection sizes | Cold water inlet | 3/4″ NPT |
| Hot water outlet size | 3/4″ NPT | |
| Gas inlet | 3/4″ NPT | |
| 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) | |
| Dimensions | 17.3″ W x 27.4″ H x 13.2″ D (43.9 cm W x 69.6 cm H x 33.5 cm D) |
| Boiler weight | 62 lbs (28.1 kg) |
| Installation type | Indoor or outdoor wall-hung |
| 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 2.61Kpa) |
| Propane gas supply pressure (from source) | 8″ WC to 13″ WC (1.99 Kpa to 3.23 Kpa) |
| Natural gas manifold pressure (min-max) | -0.04 ” WC to -0.4 ” WC (-0.0099 Kpa to -0.099 Kpa) |
| Propane gas manifold pressure (min-max) | -0.03 ” WC to -0.4 ” WC (-0.0075 Kpa to -0.099 Kpa) |
| Minimum flow rate | 0.5 GPM (1.893 l/m) |
| 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 Secondary 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, ingnition operation detector, water temperature high limit switch, exhaust temperature high limit sensor, power surge fuse, burner high limit fuse, vent installation detector (VID) |
*Available for NPE-A2 models configured in an optional ComfortFlow® recirculation mode. Energy consumption will increase when the system is configured for recirculation.
NPE-210S2 premium features and benefits
2" PVC venting up to 75 feet
Low exhaust gas temperatures allow use of PVC (including schedule 40 PVC), CPVC, popypropylene (rigid and flexible) and stainless steel venting, saving time and costs.
Vent Installation Detector (VID) for added safety.
Dual Venturi for field gas conversions
Dual Venturi system creates better combustion control and turndown ratio.
Dual stainless steel heat exchangers
for added durability
EZNav™ Multi-line control with built-in intuitive software
1/2" gas pipe capability up to 24'
(subject to local codes). Cuts installation time, no need to install new gas lines for retrofit applications.
Videos
Why switch to TANK
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Why switch to TANKLESS
Efficient
Why switch to HYBRID
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