The Navien NPF700-100U5CH Hydro-Furnace is a high-efficiency heating solution engineered to deliver powerful indoor comfort, flexible performance, and advanced energy-saving operation. Designed with variable capacity technology ranging from 15% to 100%, this hydro-furnace automatically adjusts heating output based on demand, helping improve comfort consistency while reducing energy consumption.
Built for modern residential HVAC systems, the NPF700-100U5CH offers adjustable discharge air temperatures between 95°F and 150°F, providing customized comfort control for a wide range of indoor heating applications.
Its quiet operation, user-friendly controls, ultra-low NOx emissions, and flexible gas compatibility make it an excellent choice for homeowners looking for efficient and reliable heating performance in both new installations and retrofit projects.
The Navien NPF700-100U5CH Hydro-Furnace is designed to provide precise heating performance while maximizing system efficiency and indoor comfort. Its variable capacity operation allows the system to continuously adjust output levels based on heating demand, reducing energy waste and minimizing temperature fluctuations.
The adjustable discharge air temperature feature allows homeowners to customize comfort levels while maintaining efficient airflow throughout the home. Quiet system operation also helps create a more comfortable indoor environment compared to traditional heating systems.
With built-in flexibility for both natural gas and propane applications, plus included high-altitude and LP conversion kits, the NPF700-100U5CH is adaptable to a variety of installation environments and climate conditions.
| Item | NPF700-100U5CH |
| Gas Input (Space Heating) | 14,000 - 100,000 BTU/h (4.1 - 29.3 kWh) |
| Dimensions | 21.0" W x 34.5" H x 31.0" D (53.3cm W x 87.6cm H x 78.7cm D) |
| Shipping Weight | 167.6 lbs (76 kg) |
| Installation Location | Upflow |
| Venting Type | Forced draft direct vent or non-direct vent |
| Maximum Vent Length |
2" - 70 ft. 3" - 140 ft. |
| Ignition | Electronic ignition |
| Natural Gas Supply Pressure | 3.5 " WC to 10.5 " WC (0.87 kPa to 2.61 kPa) |
| Propane Gas Supply Pressure | 8 " WC to 13 " WC (1.99 kPa to 3.23 kPa) |
| Natural Gas Manifold Pressure (min-max) | -0.01 " WC to -0.02 " WC (-0.0025 kPa to -0.005 kPa) |
| Propane Gas Manifold Pressure (min-max) | -0.01 " WC to -0.02 " WC (-0.0025 kPa to -0.005 kPa) |
| Gas Inlet | 1/2" NPT |
| Cold Water Inlet | 1/4" NPT |
| Condensate Outlet | 3/4" NPT |
| Power Supply | 120V AC, 60 Hz |
| Maximum Current | 14.3 Amps |
| Circuit Breaker | 20 Amps |
| Wire Size | 12 AWG |
| Casing Material | Corrosion resistant baked on pre-painted steel |
| Combustion Heat Exchanger | Stainless Steel |
| Hydronic Heat Exchanger | Copper & Aluminum |
| Exhaust Venting | 2" or 3" PVC, CPVC, approved PP 2" or 3" special gas vent type BH (Class III, A/B/C) 2" or 3" SS |
| Intake Venting | 2" or 3" PVC, CPVC, PP 2" or 3" special gas vent type BH (Class III, A/B/C) 2" or 3" SS |
| Vent Clearances | 0" to combustibles |
| Safety Devices | Flame rod, ignition operation detector, water temperature high limit switch, high limit sensor for exhaust temperature, Vent Installation Detector (VID), water level sensor, burner high limit sensor, Pressure Relief Valve (PRV), leak sensor |
Navien reserves the right to change specifications at any time without prior notice.
| Application | Coverage Type | Residential2 | Commercial |
| Parts1 | Registered3 | 10 Years | 1 Year |
| Parts1 | Non-Registered4 | 5 Years | 1 Year |
| Labor | Standard Coverage | 1 Year | 1 Year |
| Application | Coverage Type | Residential2 | Commercial |
| Combustion Heat Exchanger | Registered3 | Limited Lifetime | 10 Years |
| Combustion Heat Exchanger | Non-Registered4 | 20 Years | 10 Years |
Definitions:
1 Parts – Refers to all internal functional components of the unit, except for the Combustion Heat Exchanger.
2 Residential – Refers to a single-family residential application.
3 Registered – Refers to coverages for units registered within 60 days of the commencement date.
4 Non-Registered – Refers to coverages for units registered 61 days or more after the commencement date.
Pacific Blue Mechanical provides complete supply, installation, repair, and maintenance services for the Navien NPF700-100U5CH Hydro-Furnace throughout Metro Vancouver. Whether you are replacing an outdated heating system or installing a new high-efficiency hydro-furnace, our licensed HVAC technicians provide professional installation and long-term support.
If requested, we can source and supply the NPF700-100U5CH directly and handle the full installation process, including gas line configuration, duct integration, thermostat setup, airflow balancing, electrical connections, commissioning, and system optimization.
We also provide ongoing maintenance and repair services including diagnostics, annual servicing, airflow testing, gas pressure adjustments, ignition troubleshooting, blower repairs, control board diagnostics, and preventative maintenance to help maximize performance and extend equipment lifespan.
If your hydro-furnace is experiencing issues such as inconsistent heating, airflow problems, unusual noises, ignition failures, error codes, or efficiency loss, our experienced technicians can quickly identify the problem and recommend the most cost-effective solution.
The Navien NPF700-100U5CH Hydro-Furnace is a high-efficiency variable-capacity hydro-furnace designed for residential heating applications.
The system operates with variable capacity from 15% to 100% depending on heating demand.
Yes. The system is field-convertible from natural gas (NG) to propane (LP), and an LP conversion kit is included.
Yes. It supports both single-stage and two-stage thermostats.
Yes. A high-altitude kit is included for installations up to 10,100 feet elevation.
