9400 Series
Hotsy 9400 Series – Hot Water Heating Modules for Cold Water Pressure Washers
The Hotsy 9400 Series heating modules offer an affordable and flexible way to convert your existing cold water pressure washer into a powerful hot water cleaning system. By simply connecting a Hotsy heating module to your cold water pressure washer, you gain all the benefits of hot water cleaning — faster grease and oil removal, improved cleaning speed, and better results — without purchasing an entirely new machine.
These high-performance heating modules are ideal for contractors, equipment rental centers, and businesses looking to upgrade their cleaning capability with minimal investment.
Key Features and Benefits
- Easy Conversion — Transforms any compatible cold water pressure washer into a hot water unit
- High-Efficiency Heating — Uses Hotsy’s proven vertical heating coil for maximum heat transfer and efficiency
- Fuel Options — Available in oil-fired (diesel or fuel oil) and natural gas-fired models
- Powerful Performance — Supports up to 10 GPM at 3200 PSI for demanding cleaning applications
- Safe & Reliable Operation — Equipped with a flow switch to automatically control the burner
- ETL Safety Certified — Meets strict safety standards for dependable performance
- Compact & Durable Design — Built tough for job site or in-plant use
Available Models
- 9450 — Oil-Fired | 10 GPM (max) | 550,872 BTU/hr | 115V / 1 Phase
- 9452 — Natural Gas-Fired | 10 GPM (max) | 558,000–720,000 BTU/hr | 115V / 1 Phase
- 9460 — Oil-Fired | 10 GPM (max) | 720,603 BTU/hr | 115V / 1 Phase
- 9462 — Natural Gas-Fired | 10 GPM (max) | 950,000 BTU/hr | 115V / 1 Phase
Specifications Overview
- Maximum Pressure: 3200 PSI
- Flow Rate: 6 – 10 GPM
- Voltage: 115V / 1 Phase
- Dimensions:
- Smaller models: 32.5″ L x 25″ W x 50.5″ H
- Larger models: 40.5″ L x 32″ W x 65″ H
- Shipping Weight: 500 – 935 lbs
Why Choose Hotsy 9400 Series Heating Modules?
Adding a Hotsy heating module is one of the smartest and most cost-effective ways to upgrade from cold water to hot water cleaning. Hot water dramatically improves cleaning effectiveness on grease, oil, carbon, and stubborn dirt — saving you time, water, and labor.
Whether you run a pressure washing business, manage a fleet maintenance facility, or need occasional hot water capability, the 9400 Series gives you professional-grade hot water performance with the flexibility to use your existing cold water pressure washer.
Ready to upgrade your cold water pressure washer to hot water? Contact our Hotsy experts today to find the right heating module for your equipment and application.