Chattanooga Hydrocollator M-4 Mobile Heating Unit

The Chattanooga Hydrocollator M-4 Mobile Heating Unit is a high-capacity moist heat therapy system designed for busy physical therapy clinics, rehabilitation centers, sports medicine facilities, and professional healthcare environments. Featuring durable stainless steel construction, thermostatically controlled heating, and a spacious insulated tank, the M-4 provides a dependable supply of reusable heated HotPacs throughout the treatment day.

With a larger tank than the Chattanooga Hydrocollator M-2, the M-4 is an excellent choice for facilities that regularly prepare multiple moist heat packs for patient treatments. Its mobile design, swivel casters, and self-contained operation make it convenient for use in clinical treatment areas without requiring a permanent plumbing connection.

Includes 24 Standard Chattanooga Hydrocollator HotPacs (10" x 12"). The unit maintains water temperatures of approximately 160° to 165°F (71° to 74°C).

Chattanooga Hydrocollator M-4 Features and Benefits

• High-Capacity Moist Heat Therapy: Large stainless steel tank accommodates a substantial supply of reusable HotPacs for professional treatment environments.
• Includes 24 Standard HotPacs: Supplied with 24 Standard-size Chattanooga Hydrocollator HotPacs, measuring 10" x 12" each.
• Consistent Heating: Thermostatically controlled water temperature of approximately 160° to 165°F.
• Durable Stainless Steel Construction: Designed for regular use in rehabilitation clinics and healthcare facilities.
• Fiberglass Insulation: Helps minimize heat loss during operation.
• Mobile Design: Swivel-type rubber casters make it easier to reposition the heating unit within a facility.
• Automatic Low-Water Shutoff: Built-in safety protection shuts off heating when the water level becomes too low.
• No Permanent Plumbing Required: Self-contained tank design allows placement in suitable treatment areas.
• Easy Routine Maintenance: Designed for straightforward filling, draining, and cleaning.
• Large Operating Capacity: Approximately 27 gallons of water capacity with HotPacs installed.

Professional Moist Heat Therapy for Busy Clinics

The Hydrocollator M-4 is designed to keep reusable moist heat packs heated and available for clinical treatment preparation. Moist heat is commonly incorporated into rehabilitation and physical therapy programs to provide localized warmth, support patient comfort, and help address muscle stiffness when clinically appropriate.

The thermostatically controlled water bath maintains consistent heating conditions so clinicians can prepare HotPacs for use throughout the day. With 24 Standard HotPacs included, the M-4 is especially suitable for higher-volume treatment environments.

Safety Note: Heated HotPacs must be applied with appropriate protective covers or toweling and according to professional treatment protocols. Never place a heated HotPac directly against a patient's skin.

Mobile Stainless Steel Design with Built-In Safety Features

The Chattanooga M-4 combines a large stainless steel heating tank with fiberglass insulation and mobile swivel casters. Its construction is designed for everyday clinical use, while the insulated cabinet helps retain heat during operation.

An automatic low-water shutoff helps protect the unit if the water level falls below the required operating level. The M-4 also features a thermal cut-out system for additional protection.

Because no permanent plumbing connection is required, the unit can be installed in an appropriate treatment area with access to the specified electrical supply. Always follow Chattanooga's operating, electrical safety, filling, and maintenance instructions.

What's Included with the Chattanooga Hydrocollator M-4?

• One Chattanooga Hydrocollator M-4 Mobile Heating Unit
• 24 Standard Chattanooga Hydrocollator HotPacs, 10" x 12" each

Manufacturer SKU: 2502

HotPac covers, additional pack sizes, and optional accessories are not included unless specifically listed with the selected product configuration.

Chattanooga Hydrocollator M-4 Technical Specifications

• Manufacturer: Chattanooga
• Model: Hydrocollator M-4 Mobile Heating Unit
• Manufacturer SKU: 2502
• Dimensions: 35"L x 20"W x 33"H
• Product Weight: 132 lbs
• Shipping Weight: 160 lbs
• Operating Tank Capacity: Approximately 27 gallons (102 liters) with HotPacs
• Operating Temperature: 160° to 165°F (71° to 74°C)
• Thermal Cut-Out Temperature: 180° to 185°F (82° to 85°C)
• Temperature Accuracy: ±10%
• Heat-Up Time to 160°F: Approximately 8 hours
• Cool-Down Time from 160°F: Approximately 4 hours
• Electrical Requirements: 110–120V, 50/60Hz
• Power Consumption: 1,000W
• Electrical Safety Classification: Class I, Type B
• Safety Standards: Conforms to UL 60601-1; certified to CAN/CSA C22.2 No. 601.1
• Construction: Stainless steel with fiberglass insulation
• Mobility: Swivel-type rubber casters
• Plumbing Required: No permanent plumbing connection
• Included HotPacs: 24 Standard HotPacs, 10" x 12"

Chattanooga Hydrocollator M-4 vs. M-2

Choosing between the Chattanooga Hydrocollator M-4 and M-2 depends primarily on the number of moist heat packs your facility needs to prepare and the available treatment room space.

• Hydrocollator M-4: Includes 24 Standard HotPacs, has an approximately 27-gallon operating capacity, and measures 35" x 20" x 33". Best suited to clinics requiring a larger supply of heated packs.
• Hydrocollator M-2: Includes 12 Standard HotPacs, has an approximately 14-gallon operating capacity, and measures 27" x 16" x 33". A more compact option for smaller treatment areas.

For facilities that do not need the larger M-4 capacity, explore the Chattanooga Hydrocollator M-2 Mobile Heating Unit.

Shop Chattanooga Moist Heat Therapy Equipment

Total Rehab Solutions supplies professional rehabilitation equipment for physical therapy clinics, sports medicine facilities, hospitals, and other healthcare environments.

Browse our Chattanooga rehabilitation equipment collection for additional Hydrocollator units, therapy equipment, and accessories. You can also explore our hot and cold therapy equipment for related treatment solutions.

Need help selecting the right Hydrocollator or purchasing equipment for multiple treatment rooms? Contact Total Rehab Solutions or call (888) 399-2775 for assistance with product selection, availability, and ordering.