CleanFreak Hot Water 4.0 GPM Pressure Washer (Gas Engine) – 3,500 PSI - WET-CFH-4035G-B

CleanFreak Hot Water 4.0 GPM Pressure Washer (Gas Engine) – 3,500 PSI - WET-CFH-4035G-B

Efficient, dependable, and affordable, the CleanFreak #4035G-B gas engine-driven, diesel-fired, self-contained pressure washer has been designed with high-quality components, producing a machine you can count on to blast away even the grimiest of cleaning challenges. Add the CleanFreak #4035G-B to your cleaning arsenal to achieve sparkling results, time after time…without breaking your budget!

The four-wheeled pressure washer cart features a 14 HP Vanguard engine with electric start from Briggs & Stratton, an oil-fired fuel-conserving high-efficiency burner (384,000 BTU), as well as a belt drive triplex ceramic plunger pump with 4 GPM and 3,500 PSI ratings. In addition, the CleanFreak #4035G-B utilizes a fuel-efficient, stainless-steel combustion chamber, providing durable protection for sustained optimal unit performance. The exclusive vertical fire coil design (ASTM A53 schedule 80 steel heating coil) enables efficient and rapid water heating capability.

With an adjustable temperature control dial, you have precise temperature control. This is great for achieving that “just right” application of temperature, water, and cleaning solution (for which there is a downstream chemical injection feature…nice, right?!) depending on the specific dirty job at hand. Weighing in at 500 pounds, the CleanFreak #4035G-B is heavy-duty enough for both heavy commercial and residential applications.

If this unit does not meet the specs you are looking for, please take a look at our complete line of hot water gas engine pressure washers.

 A 12 volt battery is required to run the burner on this unit, but is not included. We recommend going to a local Big Box store or a Batteries Plus to purchase a Group 12 Deep Cycle Battery for use with this system.

Features

• 4 GPM flow allows for the toughest areas to be penetrated with plenty of water, helping you to get the job done faster!
• 4 quick coupler stainless steel nozzles included w/ the 36" insulated pressure trigger gun control wand.
• 40’ x 3/8" wire braid discharge hose.
• Low oil engine protection w/ a water separating fuel filter.
• Flow-activated shut-off switch.
• Thermal pump protection with a 5 year warranty, & 3 years on the heating coil.
• Pressure relief valve (key for injury prevention, & cost reduction by eliminating the need for expensive repairs due to system over-pressurization).
• Flat-free mag-style wheels will save you time & money, because you'll never have to change a flat tire again!
• Industrial strength triplex pump is built to handle your toughest demands.
• Removable poly fuel tanks prevent corrosion, & save you money, because you'll never have to replace a tank.
• Hour meter tracks your machine usage, allowing you to stay up on maintenance & extend the life of your machine.
• Durable powder-coated heavy-duty roll cage frame, with shock-absorbing engine base dampens vibrations lessening engine & frame fatigue.
• Downstream soap injector with soap nozzle.

What our Experts Think      

• Heavy-duty hot water cleaning power – Delivers 3,500 PSI at 4.0 GPM with diesel-fired heat, making it highly effective for breaking down grease, oil, and industrial buildup faster than cold-water systems.
• Commercial-grade gas engine performance – Powered by a 14 HP Vanguard engine, providing reliable output for demanding job sites like warehouses, fleets, construction cleanup, and food-service areas.
• True pro-flow efficiency (4.0 GPM class) – High water flow improves rinse speed, surface coverage, and compatibility with larger accessories like surface cleaners, reducing total job time.
• Built for continuous professional use – Features a belt-drive triplex pump, steel roll cage frame, and heavy-duty burner system, designed for long service life under daily commercial workloads.
• Precision hot-water control – Adjustable temperature dial allows operators to match heat output to surface type, improving cleaning effectiveness while reducing chemical dependency.
• Jobsite-ready mobility & uptime features – Includes flat-free wheels, hour meter tracking, safety shutoff systems, and thermal pump protection to minimize downtime and maintenance risk.

             
Q&A    

Q: What is the CleanFreak Hot Water 4.0 GPM Pressure Washer used for?
A: It is a commercial hot water pressure washer designed for heavy-duty cleaning of grease, oil, dirt, and industrial buildup on vehicles, equipment, concrete, and work surfaces.

Q: What are the key performance specs of this pressure washer?
A: It delivers up to 3,500 PSI with a 4.0 GPM flow rate, providing strong cleaning power for demanding commercial and industrial applications.

Q: What is the benefit of using hot water in this pressure washer?
A: Hot water significantly improves cleaning efficiency by breaking down grease, oil, and grime faster than cold water systems, reducing cleaning time and chemical usage.

Q: What powers this pressure washer?
A: It is powered by a gas engine, making it suitable for remote job sites where electricity may not be available.

Q: What types of surfaces can it clean?
A: It is ideal for concrete floors, heavy equipment, fleet vehicles, construction sites, agricultural machinery, and industrial facilities.

Q: Is this pressure washer suitable for commercial use?
A: Yes. It is built for professional contractors, maintenance teams, and industrial cleaning operations requiring high-output performance.

               
Maintenance Tips  

• Rinse the heat exchanger coil system after use to prevent scale buildup and maintain efficient water heating performance
• Flush the entire pump and hose line with clean water to remove detergent, oils, and debris after every job
• Inspect the triplex pump oil level regularly and change oil at recommended intervals to ensure long pump life
• Drain fuel system properly (gas + diesel burner side) during long storage to prevent clogging or varnish buildup
• Clean and inspect spray nozzles frequently to maintain correct pressure output (clogged tips reduce performance and strain the pump)
• Check burner system components (igniter, electrodes, fuel filter) to ensure reliable hot-water operation
• Keep air filter clean on the Vanguard engine to maintain fuel efficiency and stable power output
• Inspect high-pressure hoses and fittings for wear, bulges, or leaks before each use
• Avoid running the unit dry—always ensure proper water supply to prevent pump damage
• Store in a dry, covered location to protect electrical components, burner assembly, and frame from corrosion
• Use correct nozzle sizes and avoid over-pressurizing the system to reduce pump and engine stress
• Perform periodic full system inspection (pump, burner, engine, coil) for early wear detection and longer service life