NHB-80

Categories: Navien, Boilers

Super condensing efficiency
Dual stainless steel heat exchangers
SCH40, 2″ PVC venting up to 60′
TDR up to 10:1
Integrated controls

NHB-80 premium features and benefits

2″ venting up to 65′;
3” up to 150’ (including schedule 40 PVC).

The condensing technology of the dual stainless steel heat exchangers saves energy, reduces greenhouse gasses.

The sophisticated gas flow control system provides a high turndown ratio which reduces energy waste and excessive boiler cycling.

NHB integrated control provides industry-leading options and features including adjustable heat capacity, temp boost for outdoor reset control, adjustable anti-cycle timer and freeze protection.

Specifications

Item		NHB-80
Dimensions		43.2cm W x 61.0cm H x 30.5cm D (17.0″ W x 24.0″ H x 12.0″ D)
Boiler weight		33.1 kg (73 lbs)
Installation type		Indoor wall-hung
Venting type		Forced draft direct vent
Ignition		Electronic ignition
Natural gas supply pressure (from source)		3.5 ” WC to 10.5 ” WC
Propane gas supply pressure (from source)		8 ” WC to 13 ” WC
Natural gas manifold pressure		-0.08 ” WC
Propage gas manifold pressure		-0.07 ” WC
Connection sizes	Gas inlet	3/4″ NPT (hembra)
Power supply	Main supply	120V AC, 60Hz
Power supply	Maximum power consumption	Less than 10A
Materials	Casing	Cold rolled carbon steel
Materials	Heat exchangers	Primary and secondary heat exchangers: stainless steel
Venting	Exhaust	2″ or 3″ PVC, CPVC, approved polypropylene (see installation manual for more details) 2″ or 3″ special gas vent type BH (Class III, A/B/C)
	Intake	2″ or 3″ PVC, CPVC, polypropylene 2″ or 3″ special gas vent type BH (Class III, A/B/C)
	Vent clearances	0″ to combustibles
Safety Devices		Flame rod, APS, gas valve operation detector, ignition operation detector, water temperature high limit switch, exhaust temperature high limit sensor