Tankless Combi Boiler + DHW (HIGH Efficiency) Installation

Tank Water Heater Maintenance

Tankless Combi Boiler + DHW (HIGH Efficiency) Repair

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)