Navien Gas Fired Water Boiler, Series: NHB, 120 VAC, <10 A, 60 Hz, 95 % AFUE, 150000 Btu/hr, 3.5 to 10.5 in-WC Supply, -0.4 in-WC Manifold Natural Gas, 8 to 13.5 in-WC Supply, -0.3 in-WC Manifold Propane, 1 in NPT Supply/Return, 3/4 in FNPT Gas Connection, Liquid Propane Gas, Natural Gas Fuel, Forced Draft Direct Vent, 2 to 3 in PVC, CPVC, Approved Polypropylene Vent up to 60 ft Chimney/Breeching/Vent, Electronic Ignition, 120000 Btu/hr Net BTU Rating, Wall Hung Mounting, Cold Rolled Carbon Steel, 17.3 in W x 13.1 in D x 24 in H
| AFUE Rating | : | 95 % |
| Amperage Rating | : | <10 A |
| BTU Rating | : | 150000 Btu/hr |
| Chimney/Breeching/Vent Size | : | 2 to 3 in PVC, CPVC, Approved Polypropylene Vent up to 60 ft |
| Connection Type | : | 1 in NPT Supply/Return, 3/4 in FNPT Gas |
| Dimensions | : | 17.3 in W x 13.1 in D x 24 in H |
| Frequency Rating | : | 60 Hz |
| Fuel Type | : | Liquid Propane Gas, Natural Gas |
| Ignition Type | : | Electronic |
| Material | : | Cold Rolled Carbon Steel |
| Mounting Type | : | Wall Hung |
| Net BTU Rating | : | 120000 Btu/hr |
| Pressure Rating | : | 3.5 to 10.5 in-WC Supply, -0.4 in-WC Manifold Natural Gas, 8 to 13.5 in-WC Supply, -0.3 in-WC Manifold Propane |
| Series | : | NHB |
| Vent Type | : | Forced Draft Direct |
| Voltage Rating | : | 120 VAC |
- The sleek wall-hung design uses much less space than traditional floor standing boilers
- Ultra condensing technology offers the high efficiency and money and energy savings over other boilers and traditional water heaters
- 2-stainless steel heat exchangers provides longer life expectancy as they are highly-resistant, corrosion and erosion compared to copper heat exchangers, reduces minerals deposits
- Low NOx emissions, new metal fiber burner is designed to deliver a consistent air/gas mixture improving combustion efficiency, results in less acid rain and less green house effect
- The negative pressure gas valve and fan with dual venturi operation allows for better adaptability to low gas pressure applications
- NHB models allow for easy convertibility from NG to LP
- Clean, silent, comfort and economical hydronic heating
- Powerful anti-freeze, built-in control system is designed to keep the units plumbing frost free in winter conditions
- Electronic ignition system
- Flame rod, APS, gas valve operation detector, ignition operation detector water temperature high limit switch, exhaust temperature high limit sensor safety devices
- The smart integrated control - adjustable heat capacity, timed hydronic supply water boost feature, adjustable anti-cycle timer, pressure LWCO with manual reset, adjustable minimum burner time setting, adjustable turndown ratio timing, outdoor reset and domestic hot water priority, adjustable outdoor temperature reset curves
- NHB Series has a TDR up to 7:1 that helps eliminate short cycling
- 15 years heat exchanger, five-years parts warranty for residential use, 10 years heat exchanger, three-years parts warranty for commercial use
Instruction/Installation Manual
