D-HB40-AC Dragon Hot Box – 4000 PSI – 4 GPM – 120V GFCI

Part Number: D-HB40-AC
Category: Pressure Washer Accessories → Hot Boxes → Hot Water Conversion Systems
Type: Dragon Hot Box

The D-HB40-AC Dragon Hot Box – 4000 PSI – 4 GPM – 120V GFCI is a genuine OEM commercial-grade hot water conversion system from Pressure Systems Innovations, designed to transform compatible cold water pressure washers into complete hot water cleaning units. Engineered for industrial, contractor, agricultural, fleet, and heavy-duty maintenance applications, this Dragon Hot Box provides reliable heat generation, improved degreasing capability, and enhanced cleaning performance for demanding washdown environments.

Image shown for illustrative purposes only

Key Features & Benefits

• Genuine OEM Pressure Systems Innovations Dragon Hot Box
• Converts compatible cold water pressure washers into hot water systems
• Supports 4 GPM maximum flow rate
• Rated for 4000 PSI maximum pressure
• Designed for industrial, contractor, fleet, and agricultural applications
• Top-to-bottom Schedule 80 coil for maximum temperature rise
• Stainless steel coil wrap and control panel for corrosion resistance
• Adjustable thermostat temperature control
• Equipped with reliable Beckett burner
• Safety pressure relief valve for system protection
• Flow switch for improved operational safety
• Powder-coated steel frame for long-term durability
• Poly 6-gallon diesel/kerosene fuel tank
• Integrated fuel filter
• 120V GFCI power supply for dependable operation
• Helps improve grease-cutting performance and cleaning efficiency

Technical Specifications

Model: D-HB40-AC
Series: Dragon
Brand: Pressure Systems Innovations
Type: Hot Box / Hot Water Conversion System
Max Flow Rate: 4 GPM
Max Pressure: 4000 PSI
Heating Coil: Top-to-Bottom Schedule 80 Coil
Burner: Beckett Burner
Temperature Control: Adjustable Thermostat
Fuel Tank Capacity: 6 Gallons
Fuel Type: Diesel / Kerosene
Power Supply: 120V GFCI
Frame Material: Powder-Coated Steel
Coil Wrap / Panel: Stainless Steel
Application: Cold water to hot water pressure washer conversion for commercial and industrial cleaning systems

Typical Applications

• Converting cold water pressure washers into hot water systems
• Fleet washing and maintenance
• Heavy equipment cleaning
• Industrial washdown and degreasing
• Agricultural machinery cleaning
• Oil and grease removal
• Shop and facility maintenance
• Contractor wash systems
• Stationary cleaning systems
• Commercial hot water cleaning setups

Performance Advantages

• Converts standard cold water pressure washers into complete hot water cleaning systems
• 4000 PSI compatibility supports heavy-duty pressure washer integration
• 4 GPM capacity supports efficient cleaning flow for demanding applications
• Schedule 80 coil provides strong heat retention and maximum temperature rise
• Hot water improves grease, oil, and grime removal efficiency
• Beckett burner delivers dependable heating performance
• Stainless components improve corrosion resistance and durability
• 120V GFCI setup supports dependable stationary operation
• Helps improve productivity, cleaning efficiency, and long-term equipment reliability