High efficiency combi-boilers provide endless hot water on demand, as well as whole house heating for small and large homes.
Tankless Combi-Boiler Units are an excellent choice for both
Commercial and Residential applications. Whether you are looking for reliable water heating or a versatile space heating solution, Navien units can suit your needs. If you are looking to replace your existing hot water tank for your home and hot water boiler, a tankless Combi system from Navien can offer you energy savings as well as the convenience of truly instant hot water. Business owners can benefit from “cascading” multiple units to produce large amounts of hot water to meet the demands of industry. Regardless of your particular need, Navien Condensing Tankless Combi-Boiler units offer convenience, dependability, versatility, and energy efficiency to all. PHD Heating & Cooling can install it for you in the right way!
The ultimate high efficiency combi-boilers do it all… from the smallest apartments to larger homes
- AFUE 95% Energy Star certified
- Backed by the industry’s strongest warranty—10 years on heat exchangers
- Takes less space than floor standing boiler and tank water heater
- Can be cascaded with Navien NPE-2 water heater for increased DHW flow demand
- Easy to use control panel
- Elegant, clean appearance
- Ideal for replacements or new construction
- Optional NaviLink™ WiFi remote control system
- Optional NaviClean™ magnetic filtration system
Explore Combi-boiler Applications
Combi boilers offer endless hot water on demand for any size home, and with heat inputs up to 199,000 BTU/H, they are compatible with a variety of whole house heating applications such as finned tube and cast iron baseboards, radiant floor heating systems, fan coils, radiators, and air handlers.
Domestic hot water (showers and faucets)
- Finned tube baseboards
- Cast iron baseboards
- Radiant floor heating
- Fan coils
- Radiators
- Air handlers
Lower energy bills, easier on the planet
Navien condensing stainless steel heat exchangers recover extra heat that would be lost in non-condensing boilers. The result is a reduction in energy consumption, lower CO2 emissions and low exhaust temperatures allowing the use of less expensive venting materials such as Schedule 40 PVC.
BENEFITS OF A COMBI-BOILER
Hot Water Innovation Homeowners Can Trust
Durable Heat Exchangers
Navien combi-boiler heat exchangers are built with durable stainless steel.
Low run cost
A separate stainless steel flat plate heat exchanger for DHW creates one of the highest flow rates for any combi‑boiler in the industry. (NCB-H up to 5.4 GPM @ 70º temperature rise; NFC-H up to 5.4 GPM @ 67º temperature rise)
Remote temperature control
The NaviLink™ Wi-Fi control system provides access to NCB-H and NFC-H condensing combi-boilers from anywhere in the world
Multiple venting options
Low exhaust gas temperatures allow the use of PVC, CPVC, polypropylene (rigid and flexible), and stainless steel venting reducing installation time and costs. The system can use 2″ venting for up to 60′, or up to 150′ with 3″ venting.
Low noise levels
Installations in or near media rooms, recreation rooms or any living areas of the house are possible with the quiet running Navien combi-boilers.
Precise temperature control adjustment
The sophisticated gas flow control system provides a high turndown ratio, reducing energy waste and excessive combi-boiler cycling and enhances temperature control for DHW. (NFC-H 11:1 for heating and DHW; NCB-H 6:1 heating, 11:1 DHW)