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Navien H-Series Combi-boilers
Price Range:
$$$
Starting at $2534.99
Specifications
Type:
Combi-boiler
Fuel Type:
Propane | Natural Gas
Capacity:
On Demand - Endless
Product Details
Finally, a combi-boiler strong enough to support heating and DHW for the whole house
Navien NCB is the first high efficiency tankless condensing combination boiler with the capacity to supply both heat and domestic hot water for larger homes — enough hydronic heat for a whole house, plus hot water to run two showers and a dishwasher all at the same time. The Navien NCB takes up 80% less space than a traditional floor standing boiler and tank water heater.
Available in three capacities to meet your needs:
- Model NCB-180: 3.4 GPM @ 77° (DHW)
- Model NCB-210: 4.0 GPM @ 77° (DHW)
- Navien NCB-240: 4.5 GPM @ 77° (DHW)
Compare these advantages to any tankless condensing combi system:
heating and 199k BTU/h for DHW
Supplies all the heat and domestic hot water that most houses require.
for domestic hot water
Separate stainless steel flat plate heat exchanger for DHW creates the highest flow rate for any combi‑boiler in the industry.
and 11:1 for DHW
The sophisticated gas flow control system provides a high turn down ratio, reducing energy waste and excessive boiler cycling and enhances temperature control for DHW.
heat exchangers
Resist corrosion better than copper to provide longer life.
convertibility
Dual venturi system allows for easy field convertibility from NG to LP operation.
Orifice for LP conversion included.
Low exhaust gas temperatures allows use of PVC, CPVC, ULC S636 and polypropylene vent systems, reducing installation time and costs. System can use 2" venting for up to 60', or up to 150' with 3" venting.
Our negative pressure gas valve ensures maximum performance all the way down to a minimum gas pressure of 3.5" of water column.
Save time and effort in retrofit applications with ½" gas lines for up to 24'.
Occupies 80% less space than a traditional floor standing boiler and tank water heater.
For extraordinarily large domestic hot water flow demand, the NCB can be cascaded with our NPE units.