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The Ultra 250 is Therma-Kleen's entry-level propane steam cleaner, built for jobs where electrical infrastructure isn't an option. Compact at 95 lbs with a 23" × 18" × 32" footprint, it delivers 250 PSI at 350°F from a 130,000 BTU/hr propane burner.
Unlike the electric XL series, which requires 3-phase power, the Ultra 250 runs on propane with just a 115VAC / 6.8A or 220VAC / 3.5A pilot ignition circuit — operable anywhere with propane access and a standard outlet. Water flow adjusts from 0.5 to 1.5 GPM, giving precise control between delicate cleaning and aggressive degreasing.
Propane power is the key differentiator from the electric XL line: no 3-phase infrastructure needed, though runtime is limited by the propane tank rather than continuous-fill. The 250 PSI (17 bar) output is lower than the Ultra 600 but strong enough for grease removal, tile cleaning, conveyor degreasing, and exterior sanitation. Its 350°F max temperature sits 138°F above the thermal sanitization threshold, killing most pathogens without chemical sanitizers.
The burner heats quickly and carries an EPA clean-burning rating for outdoor and semi-enclosed use, with electronic pilot ignition and safety features including a flow switch, pressure relief valve, and high-temperature limit switch. A 25 ft hose comes standard, with a 100 ft option available for larger jobs.
The Ultra 250 is best suited for outdoor locations without 3-phase power — construction sites, agricultural equipment cleaning, food truck sanitation, and outdoor events.
It's also ideal for chemical-sensitive environments like KOSHER kitchens, organic food processing, and pharmaceutical manufacturing, where sanitizer residue is a compliance concern, as well as semi-enclosed spaces like loading docks thanks to its clean-burn rating. For fully enclosed indoor use, confirm adequate ventilation, since propane combustion generates CO2.
Key Features
Propane-Powered Operation: Runs entirely on propane, eliminating the need for 3-phase power infrastructure required by the electric XL series.
Compact & Portable: Weighs just 95 lbs with a 23" × 18" × 32" footprint, easy to transport and store.
250 PSI Output: Delivers 250 PSI (17 bar) — lower than the Ultra 600, but strong enough for grease removal, tile cleaning, conveyor degreasing, and exterior sanitation.
350°F Steam Temperature: Reaches 138°F above the thermal sanitization threshold, killing most pathogens without chemical sanitizers.
Adjustable Water Flow: Ranges from 0.5 to 1.5 GPM, allowing precision control between delicate surface cleaning and aggressive degreasing.
130,000 BTU/hr Propane Burner: Heats rapidly and carries an EPA clean-burning rating suited for outdoor and semi-enclosed use.
Electronic Pilot Ignition: Provides reliable startup without manual lighting.
Built-In Safety Features: Includes a flow switch, pressure relief valve, and high-temperature limit switch for safe operation.
25 ft High-Pressure Steam Hose: Standard reach included, with a 100 ft hose available as an optional accessory for larger equipment or longer-distance cleaning.
Versatile Deployment: Operable anywhere with propane access and a standard outlet — ideal for outdoor sites, chemical-sensitive facilities, and semi-enclosed spaces like loading docks.
What's Included
(1) .06 Blast Nozzle
(1) Fuel Pressure Gauge
(1) L.P. Gas Quick Connect
Aluminum Coils
(1) Main Propane Regulator
(1) 4 Ft. Wand w/Trigger Gun
(1) Fan Nozzle – Ultra 250
(1) 25ft High Pressure Steam Hose
Instructional Manual & Instructional DVD
Powder Coated, Painted, Blue Body
Specifications
Maximum Output Temperature
350°F / 176°C
Output Pressure
250 PSI / 17 bar
Water Volume
0.5–1.5 GPM (adjustable)
Fuel
LP (propane) gas
Burner Output
130,000 BTU/hr
Electrical Requirements
115VAC 6.8A or 220VAC 3.5A, 50/60 Hz
Dimensions
23" × 18" × 32"
Weight
95 lbs
Hose Included
25 ft high-pressure steam hose
Safety Features
Electronic pilot ignition, high temp limit switch, pressure relief valve, flow switch