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Stationary Hot Box — 8 GPM, Up to 4000 PSI, 12V
$3,899.00
A stationary hot box rated for 8 GPM at up to 4000 PSI with 12V operation. A hot box is an inline water heater — it takes the cold water output from your existing pressure washer and heats it on demand, which fundamentally changes what the machine can remove.
Hot water cuts grease, oil, and organic buildup that cold water simply pushes around. For fleet washing, restaurant and kitchen exhaust work, food processing facilities, and any job involving petroleum contamination, hot water isn't an upgrade — it's the difference between cleaning the surface and actually removing what's on it. Adding a hot box to an existing cold water rig is typically far less expensive than buying a dedicated hot water machine.
Match the hot box rating to your machine. This unit handles 8 GPM at up to 4000 PSI; running flow beyond its rating reduces the temperature rise you'll actually see at the gun.
Frequently Asked Questions
What does a hot box do? It heats water inline between your pressure washer and your gun, turning a cold water machine into a hot water system.
What are the flow and pressure limits? 8 GPM at up to 4000 PSI.
When is hot water worth it? Grease, oil, kitchen exhaust, food processing, and fleet work — anywhere organic or petroleum contamination is the problem.
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