At C. Albert Matthews Inc., we take pride in offering the best brands in water heating to provide unmatched comfort in your home. Don’t take your water heating for granted, leave it to the experts at C. Albert Matthews Inc. to find the perfect solution for you. Whether it is tankless, electric, gas, or combi-boilers, all of our brands are highly efficient. Consistent performance and energy efficiency is guaranteed with our water heaters. Speak to an expert to find out which water heater fits your home’s unique needs.

combi-boiler
navien

The Navien NCB-E combi-boiler is one of a kind. It is the first high efficiency combi-boiler with the capacity to supply heat and domestic water for larger homes, enough hydronic heat for the entire house, while also providing the hot water to run two showers and a dishwasher simultaneously. The Navien NCB-E does it all.

combi-boiler

Boiler

Sleek design saves spaces
Takes up 80% less space than a traditional floor standing boiler and storage tank

Linkability feature
For extremely high hot water flow demand, the NCB-E can be cascaded with other units

Dual inputs of up to 120k BTU/H for heating and 199k BTU/H for DHW
Will supply enough heat and domestic water for most house requirements

4.5 GMP at 77 degree temperature rise for domestic hot water
With a separate stainless steel flat plate heat exchanger for DHW, this creates the highest flow rate for any combi-boiler in the industry

Turn Down ratio of 6:1 for heating and 11:1 for DHW
The advanced gas flow control system provides a high turn down ratio, reducing wasted energy and unnecessary boiler cycling, all while enhancing temperature control for DWH

Dual stainless steel heat exchangers
Fights on the onset of corrosion better than copper to provide a longer lasting comfort

Field gas conversion
The Dual venturi system allows for easy field conversion from NG to LP. The orifice for LP conversion is included as well

PVC venting
Low exhaust temperatures allows for the use of PVC, CPVC, ULC S636 and polypropylene vent systems. This reduces installation time and increases efficiency. The system is capable of using 2” venting for up to 60 feet, or up to 150 feet with 3” venting

Low gas pressure
The negative pressure gas valve ensures peak performance even in a minimum gas pressure of 3.5” of water column

Ability to use existing 1/2″ gas piping
Save time and effort in retrofitting applications with ½” gas lines for up to 24 feet

It’s what’s inside that counts
interior combi boiler
  • Features a pressure relief valve
  • 2″ PVC schedule 40 capable up to 60′
  • 2″ PVC air intake venting
  • Dual Venturi for easy field conversion
  • Stainless steel heat exchanger
  • 2″ PVC air intake venting
  • Powder-coated enamel metal housing shell
  • Secondary stainless steel heat exchanger
  • Integrated control panel
  • Negative pressure gas valve
  • Stainless steel flat plate heat exchanger for domestic hot water
  • Integrated boiler pump
  • Negative pressure gas valve
  • Heating system auto fill
  • Domestic hot water inlet
  • Primary heating loop supply
  • Primary heating loop return
  • 1/2″ gas pipe capable up to 24′

NaviLink
NavilLink can be easily connected in order to communicate with your Navien systems anywhere that internet service is available. The NaviLink module is easily attached to any new or existing Navien tankless water heater, combi-boiler and boiler.

NaviLink

Available in four sizes

Model
Heating BTU/H
DHW BTU/H
NCB-150E 12,000-60,000 12,000-120,000
NCB-180/NCB-180E 14,000-80,000 14,000-150,000
NCB-210/NCB-210E 18,000-100,000 18,000-180,000
NCB-240/NCB-240E 18,000-120,000 18,000-199,900

Applications

  • Air handler/Hydronic Heating
  • Hydronic coils
  • Baseboard radiators
  • Radiant floors

Specifications

 
Item
NCB-240E
Gas Input Space heating 18,000 – 120,000 (BTU/H)
  Domestic hot water 18,000 – 199,900 (BTU/H)
Flow rate (DHW) 77°F (43°C) temp rise 4.5 GPM (17.0 L/m)
Dimensions   17.0″ W x 28.0″ H x 12.0″ D
Weight   84.0lbs (38kg)
Installation Type   Indoor wall-hung
Venting Type   Forced draft direct vent
Ignition   Electronic ignition
Hydronic water pressure   12.0-30.0 PSI
DHW water pressure   15.0-150.0 PSI
Natural gas supply pressure (from source)   3.5″ WC – 10.5″ WC
Propane gas supply pressure (from source)   8″ WC – 13″ WC
Natural gas manifold pressure (min-max)   -0.06″ WC – -1.2″ WC
Propane gas manifold pressure (min-max)   -0.03″ WC – -0.98″ WC
Minimum Flow Rate (DHW)   0.5 GPM (1.9 L/m)
Connection Sizes Heating Supply/Return 1″ NPT
  DHW inlet/outlet 3/4″ NPT
  Gas inlet 3/4″ NPT
  Auto feeder 1/2″ NPT
  Condensate outlet 1/2″ NPT
Power Supply Main supply 120V AC, 60Hz
  Maximum power consumption 200W (max 2A)
Materials Casing Cold rolled carbon steel
  Heat exchanger Primary/secondary heat exchanger: stainless steel; DHW heat exchanger: stainless steel
Venting Exhaust 2″ or 3″ PVC, CPVC, approved polypropylene / 2″ or 3″ special gas vent type BH (Class II, A/B/C)
  Intake 2″ or 3″ PVC, CPVC, polypropylene / 2″ or 3″ special gas vent type BH (Class II, A/B/C)
  Vent clearances 0″ to combustibles
Safety Devices   Flame rod, APS, ignition operation detector, water temperature high limit switch, exhaust temperature high limit sensor, power surge fuse

Ratings
Navien Combination Boiler Space Heating Ratings

 
Model 1
NCB-240E
Heating Input, MBH Min 18
  Max 120
Heating Capacity2, MBH   112
Net AHRI Rating, Water3, MBH   97
AFUE2, %   95

Other Specifications

Water Pressure   12.0-30.0 PSI
2019/05/19