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BE Hot Box Vertical Oil-Fired | 8-10GPM 12VDC

BE Hot Box Vertical Oil-Fired | 8-10GPM 12VDC

8402.90.0010 - 99012V

Your cold water pressure washer + hot box = hot water machine. This vertical oil-fired hot box made by BE and designed for 8–10 GPM systems.

🔥 Add Heat to Your Rig
Instantly convert your cold water system to hot water—perfect for tackling grease, oil, and heavy buildup.

⚡ 12VDC Powered
Runs off your existing battery system—no generator or wall power needed.

💧 8–10 GPM Capacity
Built to handle higher flow machines. Ideal for bigger rigs.

🛢️ Vertical Oil-Fired Burner
Burns diesel or kerosene for consistent, fast heat while saving space on your trailer.

🔩 Compact & Trailer-Ready
Vertical design fits neatly on your rig without hogging space.

💪 Built for Daily Work
BE’s proven build quality means this hot box is ready for your toughest jobs.

$4,299.00 USD
$4,599.00 USD $4,299.00 USD
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Frequently Asked Questions

What does a hot box do for my pressure washer?

A hot box heats up your water, turning your cold water setup into a hot water system. This helps break down grease, oil, and heavy buildup faster, so you can clean more effectively and get jobs done quicker.

How do I know which hot box size I need?

It's pretty simple. Use the 4–5 GPM hot box if your machine runs in the 4–5 GPM range. Go with the 8–10 GPM hot box if you’re running a higher flow rig or a two-gun setup. Matching your hot box to your GPM ensures consistent heat and avoids flow restrictions.

Can I run SH or chem through the hot box?

Absolutely not. Running SH or harsh chem through your hot box will damage the coil and components fast. Always apply your chem with a downstream injector or soft wash system, rinse thoroughly, and only run clean water through your hot box to keep it working for years.

Do I need a generator to run the hot box?

Nope! These BE hot boxes run off 12VDC power from your rig’s battery system, so you don’t need a separate generator or outlet—simple and efficient.