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Medical Hot Spring 4
Regular price Retail $31,899 Discount: 51% OFF You Save $16,550

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Sale price $15,349
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In a Nutshell 

Doctor Based - The ONLY sauna designed by doctors. Made to improve blood flow, reduce headaches and migraines, heal your muscles, and achieve absolute pain relief for a better night's sleep.

Fine Print

Limit 2 per customer: Limited quantities available. Any orders greater than 2 will automatically be refunded.

Warranty

All of our saunas come with a 3 year warranty included FREE.

The price is heavily discounted for the month of June. Purchase now while prices are still low. Every 2 weeks the price will increase because our supplies are very limited.  Enjoy the deals and call us at (818) 805-0026 with any questions you may have.

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HANDCRAFT FROM SCRATCH

Comparison Table

custom1 spa custom2 spa custom3 spa custom4-5 spa custom6-9 spa
Model Medical Spring 2™ Medical Spring 3™ Medical Spring 4™ Medical Spring 5™ Medical Spring 7™
Capacity 2 people 3 people 4 people 5 people 7 people
Temperature Range 50-104°F 50-104°F 50-104°F 50-104°F 50-104°F
Number of Jets 49 31 29 65 100
Hybrid Hot + Cold System™ Hot + Cold Hot + Cold Hot + Cold Hot + Cold Hot + Cold
Jet Zone Control™ Basic Basic Advanced Premium Ultimate
Independent Massage Pumps 1 1 1 2 3
Interior LED Lights
Balboa Smart Control Panel™
Heavy Duty Acrylic Shell
UV Water Treatment System
Ozone Water Purification System™
Stainless Steel Jet Trim
Silent 250W Circulation Pump
Auto Air Escape
Anti-Freeze Protection
Water-Shortage Proetection
Fully Adjustable Jets
Dual Filtration Filters
High-Density PU Foam Insulation
ETL Listed & UL-Approved
Maintenance-Free Cabinet
Smart Temperature Control™ -
24/7 Circulation Pump™ -
Clim8zone II Heat Pump Compatibility™ -
Energy Efficient Heating System™ - -
Premium Spa Insulation System™ - -
Enhanced Jet Power™ - -
Commercial-Grade Spa Construction™ - -
Ultimate Performance System™ - -
Precision Massage Zones - - -
Reflexology Foot Therapy - - -
Deep-Tissue Neck & Shoulder Massage - - -
Full-Body Bubble Massage - - -
Custom-Flow Air System - - - -
Chromotherapy LED Lighting - - - -
Reflexology Foot Therapy - - - -
Ultimate Flow System - - - -
Exterior Dimensions (LWH) 76.8 × 55.1 × 29.7" 78.7 × 63.0 × 34.6" 82.7 × 66.9 × 33.5" 86.6 × 86.6 × 37.8" 90.6 × 90.6 × 37.4"
Watts 8,375 W 7,975 W 7,975 W 10,875 W 13,075 W
Operating Voltage 220–240V/60AMP GFCI 220–240V/60AMP GFCI 220–240V/60AMP GFCI 220–240V/60AMP GFCI 220–240V/60AMP GFCI
Required Wire Type Hardwired,6 AWG Copper,90°C rated Hardwired,6 AWG Copper,90°C rated Hardwired,6 AWG Copper,90°C rated Hardwired,6 AWG Copper,90°C rated Hardwired,6 AWG Copper,90°C rated

Designer Showcases 

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NO MORE WAITING

Get your Icy Hot Spring 4today.

Jump back to the top, pick your Icy Hot Spring 4™, and start feeling better this weekend — deeper sleep, faster recovery, and the contrast therapy your body has been missing. No long wait, no complicated setup.

✓ Free shipping ✓ 0% APR financing available ✓ 30-day money-back guarantee ✓ 5 years warranty included

Technical Specifications

Built different.
Spec'd different.

Every number below reflects a medical engineering decision. When 48 doctors sign off on a spec sheet, the result looks different from what accountants build.

"We reviewed every major hot tub brand's specifications before designing the Icy Hot Spring 5™. Then we built it the way doctors would not the way margins would"

- Medical Saunas Engineering Team
Electrical Requirements
Power Supply:
220V–240V / 60Hz.
Maximum Current:
37A.
Maximum Power:
7,975 Watts.
Wiring:
4-wire (L1, L2, Neutral, Ground) using minimum 6 AWG copper.
Breaker:
60A Maximum Class A GFCI-protected.
Thermal Performance WORLD FIRST
Temperature Ranges:
High Range 80°F–104°F; Low Range 50°F–99°F.
Heater:
5.5 kW high-output Balboa heater.
Hybrid Ready:
Engineered for integration with Clim8zone II (4.0 kW heat / 1.6 kW cool).
Jet Configuration
Total Jets:
29 pieces with 304 Stainless Steel trim.
Breakdown:
3.5” (1), 3” (12), 2” (12), 1” circulation (4).
Adjustability:
Fully adjustable water flow via 1/4 turn rotation of the jet faces.
Pumps & Sanitation
Massage Pump:
1 × 2.2 kW (3 HP class) high-flow, UL-approved.
Circulation Pump:
1 × 250W (0.35 HP) energy-saving, UL-approved.
Filtration:
1 × paper filter; 24/7 silent filtration.
Sanitation:
1 × 50mg/h Corona Discharge Ozonizer with integrated injector and mixer.
Structure & Insulation
Dimensions:
2100 x 1700 x 850 mm.
Shell:
8mm USA Aristech Acrylics.
Shell Insulation:
25mm high-density PU foam.
Cabinet Insulation:
15mm aluminum foil on PS skirt panels.
Base Pan:
5mm heavy-duty ABS bottom base.
Systems & Lighting
Control System:
Balboa BP2000G1 with spaTouch 3 color touchscreen.
Lighting:
18 color-changing perimeter LEDs.
Wireless:
bwa™ Wi-Fi module included for smartphone management.
Chromatherapy:
Supports independent zones via CHROMAZON3™ logic.
Certifications
System Certification:
ETL Listed (Intertek) for North America.
Component Safety:
UL Approved pumps and heater.
Water Resistance:
IPX5 Rated (main spa unit).