Peerless® PUREFIRE® PF-399

Products » Commercial Boilers » Peerless® PUREFIRE® PF-399

The Peerless® PUREFIRE® PF-399 gas-fired condensing boiler is available for either natural or LP gas systems; the boiler has a combustion efficiency of 95.5%. The direct vent, sealed combustion, commercial-size boiler has ASME and ETL certifications for both the U.S. and Canada. A unique condensate system with built-in neutralizer component and float switch protection is a top feature of the boiler. Other great features include a high grade stainless steel burner and heat exchanger, 120 volt convenience outlet and LoNOx operation for the good of the environment. The PUREFIRE’s fully modulating burner assures dependable operation and maximum boiler efficiency. Zero clearance to combustibles, easy access to controls and leveling legs are other standard features that allow for ease of installation and maintenance. Boilers are easily converted from LP to natural gas and from natural gas to LP without any additional parts. The PUREFIRE is equipped with a full one-year parts and labor warranty (see “Warranty” section on this site for complete details).

State-of-the-Art Control Board

All Peerless® PUREFIRE® gas boilers are equipped with a state-of-the-art control board that offers modern technology such as an outdoor reset control with an additional outdoor temperature sensor and is cascade capable for operation of up to 16 units as a single module. The control board also has built-in technology for domestic hot water priority and an energy saving heat recovery function that improves hot water performance and reduces off cycle losses. Standby temperature of domestic hot water is controlled by economic low fire operation. Additionally, the control board’s LCD status display module uses plain English for easy-to-read status and troubleshooting text while a switch to "system test mode" enables contractors to manually control the firing rate.

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Type: Commercial
Construction: Stainless Steel
Fuel: Gas-Fired (Natural or LP)
Input: 80 to 399 MBH
Output: 75 to 373 MBH
Venting: Sealed Combustion, Direct Vent
Trim: Water
Combustion: Direct Spark

 

  • 95.5% Combustion Efficiency
  • Gas-Fired Condensing Boiler
  • Fully Modulating Burner
  • Factory Tested, Pre-Mixed Gas Burner Technology
  • ASME and ETL Certified for U.S. and Canada
  • Outdoor Reset Capability
  • State of the Art Control Board
  • Cascade Capable—up to 16 Boilers

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Peerless® PUREFIRE® 399
Model Number Input, MBH Gross Output NET I=B=R Ratings Water1, MBH Thermal Efficiency, % Combustion Efficiency, %
Min Max
PF-399 80 399 373 324 93.4 95.5

1 Net I=B=R water ratings based on an allowance of 1.15.

2 Consult factory before selecting a boiler for installations having unusual piping and pickup requirements, such as intermittent system operation, extensive piping systems, etc.

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Dimensions & Connection Sizes

Boiler Model Number Dimensions
A B C D E F G H J K L
PF-399 28" 2 3/4" 7" 2" 19 3/4" 8 1/2" 5 1/4" 3 1/2" 5 3/4" 4" 1 1/2"

Carton Dimensions & Shipping Weights

Boiler Model Number Length Width Height Approximate Shipping Weight (lbs.)
PF-399 25" 32" 50" 255

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