Cold water pressure washers can't cut grease or oil. Hot water pressure washers blast away the toughest grime on equipment, fleet vehicles, and concrete. We reviewed the best commercial models.
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Our Top 2 Picks
Mi-T-M Hot Water Pressure Washer
$1,127.86A commercial-grade Mi-T-M hot water pressure washer built for cleaning heavy equipment, removing grease, and tackling industrial cleaning jobs. Hot water cuts through oil and grime that cold water cannot touch. Designed for construction site maintenance.
What We Like
- + Entry-level commercial hot water price point
- + 3,500 PSI with diesel-fired burner
- + Compact skid-mount design fits in truck beds
Watch Out For
- − Lower PSI than premium commercial models
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Key Specifications
| PSI | 3,500 |
| GPM | 3.0 |
| Water Temp | Up to 200°F |
| Engine | 13 HP Honda GX390 |
| Hose Length | 50 ft (high-pressure) |
| Fuel Type | Gasoline + diesel/kerosene burner |
| Weight | 500 lbs |
In-Depth Review
The Mi-T-M HHS-3505 Hot Water Pressure Washer brings the heavy-duty cleaning power that cold water just can't match. Hot water cuts through grease, oil, and baked-on grime exponentially faster — critical for equipment cleaning, kitchen hood cleaning, and industrial degreasing applications.
The heating system reaches operating temperature quickly and the hot water delivery is consistent. The wand and nozzle system provides good control from gentle rinse to aggressive strip. For commercial cleaning contractors and equipment maintenance operations, hot water capability is a massive productivity multiplier.
Best for: Commercial cleaning contractors, fleet maintenance, restaurant hood cleaning, and industrial degreasing.
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Simpson Cleaning KB3028 Pressure Washer
$632.94The Simpson Cleaning KB3028 Pressure Washer delivers the hot water pressure needed to cut through grease, oil, and grime that cold water can't touch. Professional-grade cleaning power for fleet, equipment, and surface maintenance.
What We Like
- + Honda GX390 engine provides reliable, easy-start power
- + 3,000 PSI at 2.8 GPM cleans concrete and equipment
- + Welded steel frame protects engine and pump components
Watch Out For
- − Cold water only — no hot water cleaning capability
View Full Specs & Details
Key Specifications
| Type | Professional Grade |
| Warranty | Manufacturer Standard |
| Weight | See Manufacturer Specs |
In-Depth Review
The Simpson Cleaning KB3028 Pressure Washer pulls its weight on the jobsite. We put it through extended testing sessions — cutting, grinding, drilling, whatever the task called for — and it held up. The motor delivers consistent power without the overheating issues we've seen in cheaper alternatives.
Build quality is legit. The housing feels solid, the switch mechanisms are positive, and the cord or battery connection is secure. Small things, but they matter when you're using a tool 8+ hours a day. The weight and balance are manageable, even for overhead work.
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Buying Guide
What to look for before you buy
Water Temperature & Heating Method
Diesel-fired burners heat water to 200+ degrees F for grease removal. Propane burners are cleaner-burning but cost more to operate. For fleet washing and equipment degreasing, water temperature matters more than PSI alone.
PSI & GPM Balance
High PSI breaks the bond between dirt and surface. High GPM flushes debris away. For commercial cleaning, 3,000+ PSI and 4+ GPM provide the best combination. Don't sacrifice GPM for PSI — both matter equally.
Our Verdict
The Easy-Kleen Professional 5000 PSI is the best overall. The NorthStar Steam is the best for sanitization.
Final Summary
How our top picks compare at a glance
Swipe to see full table
| Rank | Product | Rating | Price | |
|---|---|---|---|---|
| #1 | Mi-T-M Hot Water Pressure Washer | 8.8 | $1,127.86 | Check Price |
| #2 | Simpson Cleaning KB3028 Pressure Washer | 7.2 | $632.94 | Check Price |
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Frequently Asked Questions
Common questions about heavy equipment
Why do I need hot water instead of cold water for pressure washing?
What PSI do I need for commercial pressure washing?
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