Navien's NHB-H Series heat-only boilers offer impressive 95% efficiency across their four models, ranging from 55,000 to 150,000 BTU/h. You'll appreciate the space-saving wall-mounted design and smart controls for multiple heating zones. While prices run from £2,500 to £5,000 for the units alone, expect total installation costs between £7,000 and £12,000. Though the initial investment is higher than traditional boilers, the long-term energy savings and 10-year heat exchanger warranty make it worth considering. Let's explore what makes this series stand out from the competition.
Key Takeaways
- Navien NHB-H Series offers four models from 55,000 to 150,000 BTU/h, featuring 95% AFUE efficiency ratings and dual stainless steel heat exchangers.
- Equipment costs range from £2,500 to £5,000, with total installation packages ranging between £7,000 and £12,000 including labour.
- The boilers offer space-saving wall-mounted design with built-in controls for multiple heating zones and venting options up to 150 feet.
- Comprehensive warranty includes 10 years on heat exchangers and 5 years on parts, with technical support available seven days weekly.
- Models feature impressive turndown ratios ranging from 5:1 to 15:1, allowing for precise temperature control and improved energy efficiency.
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Navien NHB-H Series Heat-Only Boiler Overview
Searching for a high-performance heat-only boiler? The Navien NHB-H Series offers four models ranging from 55,000 to 150,000 BTU/h, perfect for both homes and light commercial spaces.
You'll love that these compact wall-hung units won't eat up valuable floor space.
These boilers pack some impressive features, including dual stainless steel heat exchangers and built-in controls for managing multiple heating zones. Whether you're heating radiators, baseboards, or in-floor systems, they've got you covered.
You're also getting peace of mind with substantial warranty coverage – 10 years on heat exchangers and 5 years on parts.
Plus, with venting options up to 150 feet and the ability to link up to 16 units together, you've got plenty of installation flexibility. The NaviLink Wi-Fi system lets you control everything from your phone, too.
Navien NHB-H Series Heat-Only Boiler Performance and Efficiency
The four models in Navien's NHB-H Series pack a serious punch when it comes to heating power and efficiency. You'll find impressive heating capacities ranging from 55,000 to 150,000 BTU/h, perfect for both modest homes and larger properties.
| Model | BTU Range | Turndown Ratio | AFUE Rating |
|---|---|---|---|
| NHB-55H | 10k-55k | 5:1 | 95% |
| NHB-80H | 10k-80k | 8:1 | 95% |
| NHB-110H | 10k-110k | 11:1 | 95% |
| NHB-150H | 10k-150k | 15:1 | 95% |
With an industry-leading 95% AFUE rating across all models, these boilers will help slash your energy bills. The dual stainless steel heat exchangers and smart controls, like the warm weather shutdown feature, guarantee you're not wasting energy when you don't need heat.
Navien NHB-H Series Heat-Only Boiler Pros and Cons
While deciding whether Navien's NHB-H Series is right for your home, you'll want to weigh both its strengths and limitations carefully.
On the plus side, you're looking at impressive 95% efficiency ratings and a space-saving wall-mounted design that won't eat up your utility room. The boiler's smart controls can manage multiple heating zones, and its dual heat exchangers help cut both energy bills and emissions.
However, there are some drawbacks to evaluate. The initial price tag is higher than traditional boilers, and you might find it's more boiler than you need if you've got a smaller home.
Some installers have reported occasional heat exchanger issues, and you'll need to factor in specialised maintenance costs.
The control system is quite sophisticated, which is great for performance but means you'll want an experienced technician for servicing.
How Does The Navien NHB-H Series Heat-Only Boiler Compare To Similar Models From Other Manufacturers?
Comparing Navien's NHB-H Series to other manufacturers' models reveals some notable advantages in key performance areas.
While established brands like Worcester-Bosch and Vaillant offer similar efficiency ratings around 90-95%, Navien stands out with its impressive 15:1 turndown ratio.
When you're looking at comparable models, here's where the NHB-H Series shines:
- Higher turndown ratio than most competitors (15:1 vs typical 5:1 or 10:1)
- More flexible venting options with both direct and non-direct certification
- Built-in controls for up to 3 heating zones
- Ability to cascade up to 16 units for larger applications
The NHB-H Series matches or exceeds its rivals in most categories, though UK brands like Worcester-Bosch might've an edge in local service support and parts availability.
How Much Does A Navien NHB-H Series Heat-Only Boiler Cost?
When considering a Navien NHB-H Series boiler, you'll need to factor in both equipment and installation costs for your total investment.
The base equipment costs range from £2,500 for the NHB-55H model up to £5,000 for the higher-capacity NHB-150H.
Installation costs typically run between £1,500 and £3,000, though you might need to budget extra if your project requires complex modifications.
Don't forget about potential add-ons like old boiler removal (£500-£1,000) and venting upgrades (£300-£800).
The good news? Your investment can pay off through the boiler's impressive 95% AFUE rating, which could save you 10-30% annually on heating bills.
Plus, with proper maintenance, these units last 15-20 years.
Navien NHB-H Series Heat-Only Boiler Warranty and Service Support
The Navien NHB-H Series comes backed by one of the industry's most extensive warranty packages.
You'll get coverage that includes an impressive 15-year warranty on the heat exchanger for residential installations, plus 5 years on parts and 1 year on labour.
When you need support, Navien's got your back with nearly year-round technical assistance.
Their support team is available 7 days a week, with extended hours on weekdays.
For the longest life from your boiler, you'll want to:
- Schedule annual inspections with a qualified technician
- Keep up with regular maintenance checks
- Monitor your water quality
- Have any issues addressed promptly by a licensed professional
Final Verdict
Based on our thorough evaluation of the Navien NHB-H Series boiler, you'll find it's a powerhouse of efficiency wrapped in a space-saving design.
With its impressive 15:1 turndown ratio and 95% AFUE rating, this unit will keep your energy bills in check while delivering consistent comfort.
You'll appreciate the user-friendly features, like the intuitive control panel and WiFi connectivity options.
The boiler's versatile installation capabilities, including extensive venting options and multi-unit cascading, make it suitable for virtually any home setup.
While it's not the cheapest option on the market, the combination of premium stainless steel components, advanced technology, and potential energy savings make it a worthwhile investment.
If you're looking for a reliable, high-efficiency boiler that'll stand the test of time, the NHB-H Series deserves your consideration.
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