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Product / Pressure Washers / 99115V

115 volt, 8-10 GPM Diesel Fired Hot Box - 99115V

115 volt, 8-10 GPM Diesel Fired Hot Box - 99115V

Specifications

FRAME

Powder Coated Steel Frame

GPM

10

SERIES

Commercial

WARRANTY

Burner: 3 Years / Coil: Lifetime

MOTOR

1 Phase / 20 Amp

VOLTS

115VAC

CORD LENGTH

35'

MAX TEMPRATURE

93°C / 200°F

MATERIAL

Powder Coated

Weight

545 lbs

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PRODUCT

DESCRIPTION

Turn Cold Water Pressure Washers into Hot Water Beasts

The BE Power Equipment 99115V Vertical Electric-Ignition Diesel-Fired Hot Box is built for professionals who need serious hot water performance without investing in a full hot water pressure washer. Designed to connect directly to an existing cold water pressure washer, the 99115V instantly upgrades your system with industrial-grade heat for faster, more effective cleaning.

Engineered for high-flow applications, this hot box supports 8.0–10.0 GPM, making it ideal for large-volume washing where heat and water flow work together to break down grease, oil, and heavy buildup. Powered by 115VAC and delivering 420,000 BTU, the 99115V heats water up to 93°C / 200°F, dramatically improving cleaning efficiency while reducing detergent usage.

Built into a rugged powder-coated steel frame, this vertical hot box is designed to withstand demanding job sites while providing reliable, on-demand hot water whenever the job calls for it.

Add Industrial Heat to High-Flow Pressure Washers

The 99115V is purpose-built for professionals running higher-GPM cold water systems and is ideal for:

  • Fleet and heavy equipment washing

  • Agricultural and farm equipment cleaning

  • Industrial wash bays

  • Property maintenance and sanitation

  • Construction and transportation applications

By introducing heat into the cleaning process, operators can clean faster, cut through grease more effectively, and minimize chemical use.

Features

High-Output Diesel-Fired Heating System

At the core of the 99115V is an SM diesel burner with electronic ignition, delivering consistent and reliable heat for demanding cleaning environments.

Heating system highlights include:

  • 420,000 BTU output

  • Maximum water temperature of 93°C / 200°F

  • 115VAC operation

  • Toggle burner on/off switch

  • Inline fuel filter for burner protection

This system delivers dependable heat for high-flow pressure washing applications.

Heavy-Duty Heating Coil Assembly

The 99115V features a 260’ x 1/2” Schedule 80 cold-rolled steel heating coil, designed to handle higher flow rates while maintaining efficient heat transfer.

  • Schedule 80 construction resists pressure and thermal stress

  • Extended coil length supports 8.0–10.0 GPM operation

  • Built for long service life in industrial environments

Integrated Safety and Flow Protection

This hot box is equipped with multiple safety systems to ensure dependable and controlled operation:

  • Flow switch to monitor water movement

  • High limit switch to prevent overheating

  • Rupture disk for pressure protection

  • Toggle burner switch for operator control

These features protect both the hot box and the connected pressure washer during use.

Extended Runtime Fuel Capacity

A 7-gallon (26.5 L) black poly diesel fuel tank provides extended operating time, allowing operators to work longer between refueling.

Industrial Frame Construction

The powder-coated steel frame provides durability, corrosion resistance, and stability in demanding work environments. The vertical configuration keeps the footprint compact while allowing easy access for service and maintenance.

Product Specifications

Model: 99115V
Compatible Flow Rate: 8.0–10.0 GPM
Power Supply: 115VAC
Amperage: 15A
Cord / Plug: 35' GFCI
Burner: SM diesel burner with electronic ignitor
BTU Output: 420,000
Maximum Water Temperature: 93°C / 200°F
Heating Coil: 260’ x 1/2” Schedule 80 cold-rolled steel
Fuel Tank Capacity: 26.5 L / 7 gal black poly
Adjustable Thermostat: No
Flow Switch: Yes
High Limit Switch: Yes
Rupture Disk: Yes
Inline Fuel Filter: Yes
Burner Switch: Toggle

Warranty Coverage

  • Burner: 3 Years

  • Heating Coil: Lifetime

Shipping Information

Shipping Weight: 545 lbs
Shipping Dimensions (L × W × H): 48” × 40” × 62”

Factory Tested for Performance

All BE Power Equipment hot boxes are tested prior to shipping. Units may show signs of testing or residual fuel odor, confirming proper function and quality control.

Serious Heat for High-Flow Cleaning

For professionals running high-GPM pressure washers who need the cutting power of hot water, the 99115V Hot Box delivers industrial heat, rugged durability, and reliable performance on demand.

99115V — high flow, high heat, zero compromise.

Help me Choose
my Pressure Washer.

Compare the specifications of your chosen pressure washers to determine the right fit for your application.

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Frequently Asked Questions about Pressure Washers

How to store a pressure washer?

To ensure the durability of your heavy duty pressure washer:

  • Empty the gas tank to prevent fuel from degrading or clogging the engine.
  • Empty the pump and hoses of any remaining water.
  • Perform necessary maintenance before storage.
  • Store in a dry area.
  • Cover.

What is a pressure washer?

A power washer is a cleaning machine that uses a gasoline engine to power a high pressure water pump and nozzle. It’s used to clean driveways, decks, vehicles, outdoor furniture and more by spraying water at high PSI to remove dirt, grime, mold and other debris.Many models also come with a detergent tank for added cleaning power.

How does a power washer work?

A power washer works by drawing water from a connected hose and pumping it through a high pressure nozzle. The gas engine powers the pump which pressurizes the water and then expels it through the nozzle at high speed to clean the surface. The water pressure is measured in PSI (pounds per square inch) and the flow rate is measured in GPM (gallons per minute).Many models also feature adjustable water pressure settings to cater to different cleaning needs. BE makes pressure washing easy with models available for light jobs and heavy duty commercial cleaning projects.

Gas vs Electric power washers?

The main difference is that a gas pressure washer, known for its cleaning power, is powered by a gasoline engine, making it more powerful and portable, while an electric pressure washer is powered by electricity and is generally quieter and lighter.

Gas pressure washers are for heavy duty and large areas due to their durability, whereas electric pressure washers are for smaller jobs.

Your BE electric pressure washer is perfect for smaller jobs and built for portability, and we offer a wide range of electric models. Included with our electric models is a long extension cord for use anywhere around your house.

What to consider?

When choosing a gas pressure washer consider:

  • Pressure (PSI): More PSI means more cleaning power but also more potential for damaging delicate surfaces.
  • Flow Rate (GPM): More GPM means faster cleaning as more water is dispensed.
  • Engine Power: Bigger engines mean more durability and power.
  • Portability: Weight, handle design and wheel size for easier to move.
  • Nozzles: Multiple spray nozzles to adjust the spray pattern for different tasks.
  • Adjustable Nozzle: Allows for fine-tuning the spray intensity and pattern for various cleaning needs.

How much pressure do I need for?

The required pressure (PSI) and cleaning power depend on the surface you’re cleaning:

  • Light duty (car washing, outdoor furniture): 1,300-1,800 PSI.
  • Medium duty (patios, fences, decks): 2,000-3,000 PSI.
  • Heavy duty (driveways, brick walls, large equipment): 3,000+ PSI.

Many pressure washers come with adjustable pressure settings to handle different cleaning tasks effectively.

Can a pressure washing damage surfaces?

Yes, a power washer can damage surfaces if used incorrectly. High pressure water can strip paint, dent soft surfaces or even cause structural damage if the pressure is too high or the nozzle is held too close to the surface. Always use the right PSI for the material you’re cleaning and keep a safe distance from delicate surfaces.

To prevent damage, consider using a model with adjustable pressure settings.

How to maintain your pressure washer?

To ensure the durability and smooth operation of a pressure washer:

  • Change the oil as per manufacturer’s instructions.
  • Clean or replace the air filter to ensure good airflow.
  • Inspect and clean the nozzle regularly to prevent clogs.
  • Drain the gas tank if you’re storing the washer for a long time.
  • Check the hoses for leaks or damage and replace them if needed.
  • Follow regular maintenance requirements to keep the washer in optimal condition.

Can I use a pressure washer in cold weather and low water temperature?

You can use a pressure washer in cold weather but it’s more difficult. The water flow rate in the hoses and pump can freeze and damage the equipment. If you plan to use your pressure washer in cold temperatures make sure to winterize it and store it in a warm area when not in use. You can also use anti-freeze solutions for pressure washers.

Some models are designed to use hot water, which can be particularly effective for cleaning in cold weather.

Do I need any accessories?

Common accessories for power washers: