The Navien NFC (Navien Firetube Combi) boiler is one heck of a performer for a combi-boiler. I have made a list of details I would recommend changing, I’ll list them below. This is the only combi that I have exeperience with that will handle any typical three bathroom home. The DHW production is very impressive.
This model combi has a modular piping arrangement that is removable for service if needed which is a huge improvement over the previous model NCB boiler (they’re going that route with the new NPE and NCB in 2020)
Navien designed and manufacturers the all stainless steel heat exchanger in house, this isn’t common of most boiler manufacturers. Having complete control over all aspects of the boiler is what tends to set companies apart from others. In this case its too early to tell if they’ve got an advantage here since the new boiler and Combi have only been on the market for less than two years.
The control for the NFC [and NFB] boiler is the first we have seen from Navien with a plain English line-by-line display. A huge step forward when compared to previous code display models.
17.3" W x 33.5" H x 17.3" D (43.9cm W x 85.1cm H x 43.9cm D)
145 lbs (65.8 kg)
Boiler Weight With Water
183 lbs (83.007 kg)
161 MBH (47.2 kWh)
18,000 - 199,900 BTU/H (5.274 - 58.571 kWh)
161 MBH (47.2 kWh)
Net AHRI Rating, Water³
140 MBH (41 kWh)
Water Connection Size (Supply, Return)
Water Volume (gallons)
Flame rod, APS, Ignition operation detector, Water temperature high limit switch, Exhaust temperature high limit sensor, Water pressure sensor
Bought this boiler at the end of the last season, so it’s hard to say about heat or fuel consumption. I’m looking forward to see how effective it is this winter.
I’ve been using it for four months now and haven’t had any issues.
Quiet and efficient residential boiler. I’ve had it for a couple of months now, so only timewill tell how reliable it is.
Too soon to tell anything because I’ve been using the boiler for a few weeks now. At least, I haven’t had any problems yet.
All our installers have had training and comprehensive testing to ensure high quality heating and cooling installation. In addition, all our installers have undergone extensive background checks and are fully insured.
How long does an installation take? What time will they arrive? Do I need to be home for the installation?
Every installation is different and every project presents unique installation challenges, but we aim to have all installations completed in one day. Technicians will arrive at the prearranged agreed upon time and will keep you updated on the progress throughout the day.We always recommend that homeowners are present during installation, but if that’s not possible, we require someone over the age of 18 to be home during installation
What if the certified installer doesn't do a good job?
All of our certified installers are trained professionals that have undergone extensive training and background checks. However, if you are not satisfied with the installation, please contact us immediately. We offer a 100% Satisfaction Guarantee on all our installations. If you are not completely satisfied, we will remove equipment and refund your money – no questions asked!
Can I buy it online and install by myself?
HVAC or Boiler installation requires electrical, gas and refrigerant knowledge as well as familiarity with local bylaws and building codes. Failure to properly install HVAC equipment can create safety concerns and performance issues as well as void manufacturer warranties. For those reasons, we always recommends professional installation.
Do I still qualify for the 10 year manufacturer parts warranty if I purchase online?
Yes. The manufacturer will honour the 10 year parts warranty if a furnace or air conditioner or boilers is purchased online and installed by us.
What is the average life expectancy?
The average lifespan of an air conditioner is 15-20 years and an average furnace will last between 10-15 years. Annual maintenance and inspections can extend the longevity and efficiency of your unit. The average lifecycle of a boiler is typically between 13 and 17 years. It is important to note that boilers that are 10 to 15 years old may be 45% less efficient than newer models. A new eco-friendly model will save you a lot of money on your energy bill.
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