LOCHINVAR WHB399N Knight Fire Tube Boiler

( Brand: Lochinvar ), ( Manufacturer Part Number: WHB399N ), ( Power Source: Electrical ), ( Color: Gray ), ( Material: Stainless Steel ), ( Item Depth: 19-1/8 Inches ), ( Power Phase: 1 Phase ), ( Type: Fire Tube Heat Exchanger ), ( Unit Type: Unit ), ( Voltage: 120 V ), ( Item Height: 31-1/8 Inches ), ( Features: 95 Afue Efficiency, Modulating Burner, Ecm Variable Speed Pump, Stainless Steel Fire Tube Heat Exchanger ), ( Finish: Metallic ), ( Item Width: 18-3/4 Inches )

Review LOCHINVAR Knight Fire Tube Boiler

Lochinvar WHB399N Knight Fire Tube Boiler - A High-Efficiency, Commercial-Grade Solution for Heating Demands

The Lochinver WHB399N Knight Fire Tube Boiler stands as a testament to engineering excellence, designed to meet the rigorous demands of commercial and industrial heating applications. This boiler, with its sleek and compact design, seamlessly integrates into various settings, offering a reliable, efficient, and eco-friendly heating solution.

The Lochinver WHB399N features a fire tube boiler design, which ensures optimal heat transfer between the combustion gases and the water. This design, coupled with a high-efficiency burner, allows the boiler to convert up to 95% of its fuel into useful heat, significantly reducing energy costs.

The boiler's robust construction is built to last, with a heavy-duty, commercially-rated steel shell designed to withstand the rigors of continuous use. The fire tube is made of corrosion-resistant material, ensuring longevity and minimal maintenance over time.

The WHB399N Knight boiler is equipped with advanced safety features, including a low water cutoff, high limit switch, and pressure relief valve. These safety measures work in unison to protect the boiler from potentially hazardous conditions, ensuring a safe and worry-free operation.

With a maximum input of 999,000 BTU, the Lochinver WHB399N Knight boiler can handle large heating loads, making it an ideal choice for schools, offices, hospitals, and other commercial and industrial facilities. The boiler's compact size, however, allows for easy installation in spaces with limited room.

In conclusion, the Lochinver WHB399N Knight Fire Tube Boiler is a top-tier, high-efficiency heating solution that combines durability, reliability, and safety in one package. Whether used for space heating, hot water generation, or process heating, this boiler is a smart investment for any commercial or industrial application.

Lochinvar WHB399N Knight Fire Tube Boiler: A Comprehensive Analysis

1. Efficiency: The boiler boasts an impressive 95% AFUE (Annual Fuel Utilization Efficiency) rating, ensuring minimal energy waste and lower heating costs.

2. Compact Design: The Knight boiler's compact dimensions make it suitable for installation in tight spaces, making it a practical choice for homes with limited area.

3. Durable Construction: Lochinvar uses high-quality materials in their boilers, including a stainless steel heat exchanger, ensuring long-lasting performance and reliability.

4. Easy Installation: With its modulating gas input and pump-less condensing design, the WHB399N boiler is relatively easy to install compared to traditional boilers.

5. Smart Controls: The boiler is compatible with the KItNet2 communications system, allowing for remote monitoring and control via smartphones or other devices.

1. Cost: As with any high-end appliance, the Lochinvar WHB399N Knight boiler carries a higher price tag compared to more basic models.

2. Complexity: While the boiler offers numerous benefits, its advanced features can make it more complex to operate and maintain for less experienced users.

3. Noise Level: Some users have reported that the boiler operates with a higher noise level compared to other models on the market.

4. Limited Compatibility: The boiler's smart controls and communication system may not be compatible with all existing heating systems, potentially requiring additional investments to upgrade existing infrastructure.

The Lochinvar WHB399N Knight Fire Tube Boiler is an ideal choice for homeowners seeking a high-efficiency, compact, and durable heating solution. Its advanced features and smart controls offer numerous benefits, but its higher cost and potential complexity may make it less suitable for budget-conscious consumers or those with less technical expertise. If you are willing to invest in a high-quality, efficient heating system and have the necessary resources to install and maintain it, the Lochinvar WHB399N Knight boiler is a solid recommendation. However, it's essential to carefully consider your specific needs and budget before making a decision.

Details:

Standard Included Items Boiler Circulating Pump: An typically Grundy's is pre-installed to match the target temperature rise. KNIGHT Fire Tube Boiler, The Lochinvar WHB155N Knight boiler is a high-efficiency residential heating solution known for its installation flexibility and advanced digital controls. The Tube boiler package includes several standard components and integrated features designed for high-efficiency residential heating. Condensate Management: A standard condensate trap is included for managing system runoff.

Boiler Circulating Pump: An ECM variable-speed pump typically Grundy's is pre-installed to match the target temperature rise. Venting Adapter: A Universal Vent Connector with a built-in combustion analyzer port, compatible PVC, CPVC, polypropylene, or stainless-steel venting. Programming Tool: A Loch-N-Link USB drive used for saving and transferring system parameters. Temperature Sensing: An Outdoor Air Sensor is provided to enable outdoor reset functionality via the control system.

Safety Control Valves: Includes a 30 PSI ASME Pressure Relief Valve. Wall Mounting Hardware: Includes a wall-mount bracket for installation.

part #: whb399n prices

• $43.51-$7500.00

specifications indheatexchanger:

• brand: Lochinvar
• mpn: Whb399n
• power source: Electrical
• color: Gray
• material: Stainless Steel
• item depth: 19-1/8 Inches
• power phase: 1 Phase
• type: Fire Tube Heat Exchanger
• unit type: Unit
• voltage: 120 V
• item height: 31-1/8 Inches
• features: 95 Afue Efficiency, Modulating Burner, Ecm Variable Speed Pump, Stainless Steel Fire Tube Heat Exchanger
• finish: Metallic
• item width: 18-3/4 Inches

shipping indheatexchanger:

• type: Fixed
• class: Economy
• transit: 5-8 Days
• cost: $0.00
• service: FedEx Ground Economy
• carrier: FedEx

offer indheatexchanger:

• started: January 16, 2026
• options: Ship-to-home
• quantity: 1
• sold: 0
• availability: In Stock

payments indheatexchanger:

• credit card: Visa
• other
• wallet: Apple-pay

returns indheatexchanger:

• policy: No Returns

seller indheatexchanger:

• rating: 98.9%
• city: Sandy, Utah
• # reviews: 2001 7

general indheatexchanger:

• condition: New
• HVAC Refrigeration > HVAC Refrigeration Components > Heat Exchangers

Lochinvar WHB399N Is Similar To:

• Lochinvar Pbn2001-m9 Power-fin Boiler 2 000 Btu In 1 700 Out Used (39.6% similar) Lochinvar power-fin boiler PBN2001-M9 2,000,000 btu in, 1,700,000 out used: 18000.00: part #: IN1,700,000 natural gas 160 psi 240 f FD: 2018 missing 2 cover screw dims: 53 x 30 78 weighs: 900 lbs used loc: AB11-10,120...(March 10th, 2026)