{"product_id":"navien-nhb-h-series-150-mbh-high-efficiency-condensing-heating-combi-boiler","title":"Combi Boiler | Navien NHB-H Series 150 MBH - High Efficiency Condensing","description":"\u003cp\u003eThis combi boiler is built for high-efficiency heating applications, offering a modern, compact wall-hung design that allows for installation in smaller mechanical rooms or utility closets. With the 15:1 turndown ratio and dual stainless steel heat exchangers, the combi boiler can modulate its output to closely match the heating load, reducing energy waste, avoiding frequent on\/off cycling, and increasing comfort.\u003c\/p\u003e\n\n\u003cp\u003eThe combi boiler's advanced control panel allows easy setup, monitoring and integration with multiple heating zones. The venting flexibility (including use of PVC\/CPVC piping) makes it installer-friendly for retrofit applications. Durable construction, high efficiency and controllability make it a premium choice for residential or light commercial hydronic heating systems. \u003c\/p\u003e\n\n\u003cp\u003eKey Features \u0026amp; Highlights\u003c\/p\u003e\n\n\u003cp\u003eHigh-efficiency condensing boiler designed for space-heating applications; wall-hung indoor design. \u003cbr\u003eIndustry-leading turndown ratio of 15 :1, enabling modulation of output to match heating load and reduce cycling.\u003c\/p\u003e\n\n\u003cp\u003eAnnual Fuel Utilization Efficiency (AFUE) of 95%, meaning it converts ~95% of fuel energy into useful heat.\u003c\/p\u003e\n\n\u003cp\u003eDual stainless steel heat exchangers (primary and secondary) for durability, corrosion resistance and enhanced performance.\u003c\/p\u003e\n\n\u003cp\u003eCompact dimensions (approx. 17.3″ W × 23.8″ H × 12.8″ D) and weight around 80 lbs (36.3 kg) for the 150 MBH model.\u003c\/p\u003e\n\n\u003cp\u003eSupports advanced built-in controls: integrated zone pump or zone valve control (e.g., boiler pump + up to 3 zone pumps or 3 zone valves) via the built-in PCB.\u003c\/p\u003e\n\n\u003cp\u003eUser-friendly interface: backlit front panel, click-wheel control, intuitive text display and setup wizard.\u003c\/p\u003e\n\n\u003cp\u003eVenting flexibility: supports 2″ venting up to ~65 ft, and 3″ venting up to ~150 ft (with Sch.40 PVC\/CPVC\/approved polypropylene) under certain conditions.\u003c\/p\u003e\n\n\u003cp\u003eField-convertible gas system: supports natural gas or liquid propane, plus a negative-pressure regulating gas valve and dual venturi for consistent air\/gas ratio even under low-gas-pressure conditions.\u003c\/p\u003e\n\n\u003cp\u003eSuitable for retrofit and new installations where space is limited or wall‐mounting is desired.\u003c\/p\u003e\n\n\u003cp\u003eTechnical Specifications (150 MBH Model)\u003c\/p\u003e\n\n\u003cp\u003eMaximum input: up to 150,000 BTU\/h (≈ 44 kW)\u003c\/p\u003e\n\n\u003cp\u003eHeating capacity (DOE rating): ~138,000 BTU\/h (≈ 40.4 kW)\u003c\/p\u003e\n\n\u003cp\u003eNet AHRI rating (water): ~120,000 BTU\/h.\u003c\/p\u003e\n\n\u003cp\u003eVenting: forced-draft direct-vent; can use 2″ or 3″ PVC\/CPVC\/approved plastic venting under correct conditions.\u003c\/p\u003e\n\n\u003cp\u003eWeight: ~80 lbs (≈ 36.3 kg) for this model.\u003c\/p\u003e\n\n\u003cp\u003eWe service and install all types of HVAC heating and cooling equipment throughout Long Island, including (but not limited to) this coverage area:\u003c\/p\u003e\n\n\u003cp\u003eNassau County: Oyster Bay, Hempstead, North Hempstead, Glen Cove, Long Beach, Freeport, Valley Stream, Garden City, Great Neck, Mineola, Hicksville, Levittown, Massapequa, Bethpage, Plainview, Syosset, Jericho, Westbury, Rockville Centre, Farmingdale\u003c\/p\u003e\n\n\u003cp\u003eSuffolk County: Huntington, Babylon, Islip, Smithtown, Brookhaven, Riverhead, Shelter Island, Southold, Southampton, East Hampton, Commack, Deer Park, Lindenhurst, Bay Shore, Brentwood, Central Islip, Hauppauge, Centereach, Selden, Medford, Patchogue, Shirley\u003c\/p\u003e\n\n\u003cp\u003eContact us today at (631) 779-3196\u003c\/p\u003e","brand":"Installed HVAC Pros","offers":[{"title":"Default Title","offer_id":47905659551995,"sku":"NHB150H","price":9669.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/9406\/6171\/files\/10262775_12706174_primary_ea078b9a-f483-436d-b0cd-c3081549f3fb.jpg?v=1773766424","url":"https:\/\/installedhvacpros.com\/products\/navien-nhb-h-series-150-mbh-high-efficiency-condensing-heating-combi-boiler","provider":"Installed HVAC Pros","version":"1.0","type":"link"}