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This 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.
The 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.
Key Features & Highlights
High-efficiency condensing boiler designed for space-heating applications; wall-hung indoor design.
Industry-leading turndown ratio of 15 :1, enabling modulation of output to match heating load and reduce cycling.
Annual Fuel Utilization Efficiency (AFUE) of 95%, meaning it converts ~95% of fuel energy into useful heat.
Dual stainless steel heat exchangers (primary and secondary) for durability, corrosion resistance and enhanced performance.
Compact dimensions (approx. 17.3″ W × 23.8″ H × 12.8″ D) and weight around 80 lbs (36.3 kg) for the 150 MBH model.
Supports 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.
User-friendly interface: backlit front panel, click-wheel control, intuitive text display and setup wizard.
Venting 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.
Field-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.
Suitable for retrofit and new installations where space is limited or wall‐mounting is desired.
Technical Specifications (150 MBH Model)
Maximum input: up to 150,000 BTU/h (≈ 44 kW)
Heating capacity (DOE rating): ~138,000 BTU/h (≈ 40.4 kW)
Net AHRI rating (water): ~120,000 BTU/h.
Venting: forced-draft direct-vent; can use 2″ or 3″ PVC/CPVC/approved plastic venting under correct conditions.
Weight: ~80 lbs (≈ 36.3 kg) for this model.
We service and install all types of HVAC heating and cooling equipment throughout Long Island, including (but not limited to) this coverage area:
Nassau 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
Suffolk 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
Contact us today at (631) 779-3196
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