Navien NFC-250/200H Fire Tube Condensing Combi Boiler – 199,900 BTU DHW / 210,000 BTU Heating
Key features
- 15:1 turndown ratio for heating and DHW
- New DHW module with mixing and water adjustment valves
- Advanced controls with Setup Wizard
- Built-in powered connections for 3 zone valves or pumps
Please note: this is the US version of this product, supplied with US gas fittings. A UK-compatible regulator and hose are needed to use it with UK propane or butane bottles, and we recommend having the connection checked by a Gas Safe registered engineer. Manufacturer warranty terms may differ for US-version products.
Upgrade to high-efficiency heating and endless hot water. The Navien NFC-250/200H Fire Tube Condensing Combi Boiler uses condensing technology to cut fuel use while delivering reliable comfort for your home.
Navien NFC-250/200H – Condensing Combi-Boiler – 199,900 BTU DHW / 210,000 BTU HTG
The Navien NFC-250/200H is a high-efficiency condensing combi-boiler that combines space heating and domestic hot water production in a single compact unit. The unit features a 15:1 turndown ratio for both heating and domestic hot water, ensuring precise temperature control and energy savings. Equipped with a new domestic hot water module with mixing and water adjustment valves, it provides consistent, comfortable hot water. Advanced controls with an intuitive interface and Setup Wizard simplify installation and operation, while built-in powered connections support up to three zone valves or pumps.
This boiler supports flexible venting options with 2″ (5.1 cm) pipe runs up to 65 feet (19.8 m) and 3″ (7.6 cm) runs up to 150 feet (45.7 m). Its patented stainless steel fire tube heat exchanger and non-metallic condensate base ensure durability and reliability. The NFC-250/200H is approved for high altitude installations up to 10,100 feet (30.5 m) on natural gas and propane, with conversion kits included. It can be common vented with up to seven NPE units or cascaded with up to fifteen units, allowing easy capacity expansion for larger heating demands.
Features
- 15:1 turndown ratio for heating and DHW
- New DHW module with mixing and water adjustment valves
- Advanced controls with Setup Wizard
- Built-in powered connections for 3 zone valves or pumps
- Venting: 2″ (5.1 cm) up to 65 feet (19.8 m), 3″ (7.6 cm) up to 150 feet (45.7 m)
- Patented stainless steel fire tube heat exchanger
- Non-metallic condensate base
- High altitude approval up to 10,100 ft (NG and LP) with conversion kits
- Common venting up to 7 NPE units; cascading up to 15 units
Applications
- Residential and light commercial space heating
- Domestic hot water supply for multiple fixtures
- Multi-zone hydronic heating systems
- High altitude installations
- Cascade boiler setups for increased capacity
Related Video: NFC-H Condensing Fire Tube Combi-Boiler
PZNS665113
Free UK delivery
Every order ships free to any address in the United Kingdom. Most orders arrive within 2–10 working days. As soon as your order is dispatched you will get a tracking link by email, and you can follow it any time on our Track Order page.
30-day returns
If you are not happy with your order you can return it within 30 days. Please contact us first so we can help and send you the return details.
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