Navien NCB-240/110HRAL Combi Water Boiler Wall-Hung (NG or LP)

The Navien NCB‑240/110HRAL combi water boiler is a premium high‑capacity wall‑hung condensing combination boiler engineered to deliver powerful hydronic heating and exceptional domestic hot‑water output from a single, ultra‑efficient unit. With 110,000 BTU of heating capacity, a robust 240,000 BTU DHW rating, 95% AFUE, and an advanced 11:1 turndown ratio, this NG/LP fired combi water boiler is ideal for larger homes, multi‑bath applications, and high‑demand installations. It operates on natural gas or propane, offering maximum flexibility for residential upgrades and replacements.

Key Features
High‑Efficiency Condensing Performance
95% AFUE for outstanding energy savings

Dual stainless‑steel heat exchangers for long‑term durability

Low NOx emissions for cleaner, environmentally responsible operation

High‑Capacity Combi System
Hydronic space heating plus on‑demand domestic hot water

110K BTU heating for whole‑home comfort

240K BTU DHW output supports multiple simultaneous fixtures

Eliminates the need for a separate water heater

11:1 Turndown Ratio
Wide modulation range ensures precise temperature control

Reduces cycling, improves comfort, and lowers fuel consumption

Fuel Flexibility
Operates on natural gas or propane

Ideal for homes without natural gas service or those upgrading older LP systems

Smart Navien Controls
Intuitive digital interface with advanced diagnostics

Outdoor reset compatibility for improved efficiency

Ready for cascading and common‑venting applications

Compact Wall‑Mounted Design
Saves valuable floor space

Quiet operation suitable for utility rooms, closets, and tight mechanical areas

Dimensions

Height: 27.4 in

Width: 17.3 in

Depth: 13.2 in

Ideal For
Large homes with high heating and hot‑water demand

Multi‑bath or multi‑zone hydronic systems

High‑efficiency natural gas or propane installations

Space‑restricted mechanical rooms

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