🧖 Tylö Sense Commercial 20 kW Sauna Heater – 22-43 m³ Capacity

Swedish-engineered commercial power for large public saunas, wellness centres and fitness facilities

♨️ Product Overview

The Tylö Sense Commercial 20 represents the pinnacle of Swedish sauna engineering, delivering exceptional heating performance for large commercial and public sauna installations. Designed for demanding environments including hotels, health spas, gyms and wellness centres, this powerful 20 kW heater effortlessly manages sauna rooms between 22 and 43 cubic metres.

Built by Tylö – Sweden’s leading sauna manufacturer since 1950 – the Sense Commercial 20 combines robust construction with intelligent energy management. The innovative Split Output technology automatically reduces power consumption once your desired temperature is reached, delivering up to 30% energy savings during extended operation periods.

The sleek black finish and ThermoSafe™ protective coating ensure both aesthetic appeal and user safety in busy commercial settings. Whether you’re replacing an outdated installation or equipping a new facility, the Sense Commercial 20 offers compatibility with both modern digital control panels (Elite Cloud, Pure) and legacy mechanical systems, making it an exceptionally versatile choice for professional sauna operators.

⭐ Key Features

✅ 20 kW Power Output – Substantial heating capacity engineered for large commercial sauna rooms from 22 to 43 m³

✅ Split Output Technology – Intelligent power management reduces energy consumption by up to 30% once target temperature is reached

✅ ThermoSafe™ Protective Coating – Proprietary surface treatment keeps the heater exterior at a safe temperature, minimising burn risk in busy environments

✅ Rapid Heat-Up System – Twin side chambers distribute heat quickly and evenly throughout the sauna space

✅ Ready At Functionality – Pre-programme your sauna to reach optimal temperature at your preferred time

✅ Integrated Fragrance Dispenser – Built-in aromatherapy holder for essential oils and sauna fragrances

✅ Dual Installation Options – Wall-mounted as standard, with optional leg kit available for floor-standing configuration

✅ Universal Control Compatibility – Works with Elite Cloud, Pure digital panels and legacy mechanical control units (TS 30 series)

✅ Commercial-Grade Construction – Robust Swedish manufacturing built for continuous daily operation in professional settings

✅ IPX4 Water Protection Rating – Designed to withstand the humid sauna environment safely

✅ 25 kg Stone Capacity – Generous stone reservoir for excellent löyly (steam) production when water is added

✅ CE Certified – Full European conformity certification for commercial installations

⚙️ Technical Specifications

Specification	Value
Model	Sense Commercial 20
Product Code	2961001094
Power Rating	20 kW
Voltage	400-415 V 3N~ (Three-phase with neutral)
Amperage	29 A
Cable Size	10 mm²
Room Capacity	22-43 m³
Dimensions (W×H×D)	653 × 646 × 390 mm
Weight	Approx. 20 kg (unit only)
Stone Capacity	25 kg
Colour	Black
Mounting	Wall-mounted (floor stand optional)
IP Rating	IPX4
Control System	External panel required (Pure, Elite, or TS 30)
Relay Box	RB Commercial required for Elite/Pure panels
Certifications	CE Marked
Warranty	2 years
Country of Manufacture	Sweden

⚠️ This is a heater unit only. Relay box (RB Commercial) and control panel (Pure or Elite) are required for operation and must be purchased separately.

📏 Room Sizing Guide

General Formula: Approximately 1 kW per 1-2 m³ of sauna room volume

Tylö Sense Commercial 20 Capacity: Suitable for sauna rooms between 22 m³ (minimum) and 43 m³ (maximum)

Adjustment Factors:

Condition	Adjustment
Glass door or windows	Add +1.5 m³ per m² of glass surface
Uninsulated or log walls	Add +25-50% to calculated volume
Brick/concrete walls without insulation	Add +1.2-2 m³ per m² of masonry
High ceiling (above 2.3 m)	Calculate additional volume accordingly

Worked Example:

📍 Example Commercial Sauna: 4.5 m × 3.5 m × 2.4 m

• Base volume: 37.8 m³
• Glass door (1.0 m × 2.1 m = 2.1 m²): +3.15 m³
• Total calculated volume: 40.95 m³
• Tylö Sense Commercial 20 (22-43 m³): ✅ Ideal match

💡 For volumes exceeding 43 m³, consider multiple heater installations or contact Parts4Tubs for bespoke advice.

💷 Running Costs

Energy Rate Used: £0.2635/kWh (UK Ofgem Price Cap, October-December 2025)

Annual Operating Cost Estimates:

Usage Level	Sessions/Week	Hours/Year	Annual Cost
🏢 Moderate Commercial	7	520	£2,740
🧖 Regular Commercial	14	1,040	£5,481
🏨 Heavy Commercial	21	1,560	£8,221

Calculation Formula:

Annual Cost = Power (kW) × Hours per Year × Unit Rate (£/kWh)

Example (Regular Commercial Use):
20 kW × 1,040 hours × £0.2635 = £5,481 per year

Per Session Cost (1.5 hour session):
20 kW × 1.5 hours × £0.2635 = £7.91 per session

💡 Energy Saving Note: Split Output technology can reduce actual consumption by up to 30% during temperature maintenance periods, potentially lowering real-world costs below these estimates.

⚠️ Actual costs depend on usage patterns, session length, room insulation quality and current energy rates. Commercial electricity tariffs may differ from residential rates.

🔌 Installation Requirements

Electrical Specifications:

Requirement	Specification
Supply Voltage	400-415 V 3N~ (Three-phase with neutral)
Current Draw	29 A
Cable Size	10 mm² minimum
Circuit Breaker	32 A recommended
Dedicated Circuit	Required
Connection Type	Hardwired (no plug)

Minimum Clearances:

Position	Distance
Side walls	150 mm (350 mm in recess installation)
Ceiling	1,180 mm minimum from top of heater
Floor	270 mm mounting height
Interior fittings/benches	400 mm above, 200 mm to sides
Minimum ceiling height	2,100 mm

Ventilation Requirements:

• Fresh air intake: Directly below the heater through the wall (approximately 300 cm² opening)
• Exhaust vent: Positioned diagonally opposite, high on wall or ceiling, same area as intake
• Natural draught ventilation recommended; mechanical ventilation not advised

Sensor Positioning:

• Mount sensor 500-1500 mm from heater, at 1500 mm height from floor
• Avoid placing sensor where incoming air could affect readings

⚠️ IMPORTANT: Installation must be carried out by a qualified electrician in accordance with BS 7671 (IET Wiring Regulations), local building codes and the manufacturer’s installation guide. Commercial installations may require building control approval.

🛡️ Safety Features & Certifications

Built-in Safety Systems:

✅ ThermoSafe™ Protective Coating – Keeps heater exterior at safe touch temperature (approximately 40°C)

✅ Thermal Cut-out Protection – Automatic shutdown if internal temperature exceeds safe limits

✅ Overheat Protection Sensor – Continuous temperature monitoring with fail-safe shutdown

✅ Split Output Power Reduction – Automatically reduces power once set temperature achieved

✅ Door Contact Compatibility – Can be configured to disable standby mode when sauna door opens

✅ All-Pole Disconnection – Installation must include means for complete electrical isolation

Certifications:

✅ CE Marked – European Conformity

✅ IPX4 Rated – Protected against water splashing from all directions

✅ Manufactured in Sweden to exacting quality standards

🏢 Ideal Applications

Application	Room Size	Typical Capacity	Notes
🏨 Hotel Spa	25-40 m³	6-10 people	Premium guest experience
🏋️ Fitness Centre	28-43 m³	8-12 people	High-throughput commercial use
🧖 Day Spa	22-35 m³	6-8 people	Wellness facility grade
🏢 Corporate Wellness	25-38 m³	6-10 people	Employee wellbeing facilities
🏊 Swimming Pool Complex	30-43 m³	8-12 people	Wet area compatible (IPX4)
🏥 Health Club	25-40 m³	6-10 people	Medical/rehabilitation settings

🪨 Sauna Stones

Stone Capacity: 25 kg

Recommended Stone Size: 5-10 cm diameter

Stones Included: No – sauna stones must be ordered separately

Recommended Stone Type:

• Olivine diabase (Finnish vulcanite)
• High-quality sauna stones rated for commercial use
• Must withstand repeated heating and water contact

Stone Replacement: Every 1-2 years with regular commercial use, or when stones begin to crumble

Important Stone Care:

• Arrange stones loosely to allow airflow between heating elements
• Do not use small stones or gravel that could block air circulation
• Inspect stones regularly for degradation

💡 Tylö vulcanite sauna stones available separately from Parts4Tubs – designed specifically for Sense Commercial heaters.

🎛️ Control Options & Accessories

Control System: This heater requires an external control panel and relay box for operation.

Compatible Control Panels:

Panel	Type	Features
Tylö Elite Cloud	Digital	WiFi connectivity, smartphone app control, cloud-based programming, calendar function
Tylö Pure	Digital	Digital interface, programmable timer, temperature control
TS 30-012 / TS 30-06	Mechanical	Thermostatic control, timer function (Sense Commercial 16 kW max)

Required Accessories:

• RB Commercial Relay Box – Required when using Elite or Pure control panels with 16-20 kW heaters
• Sauna Stones (25 kg) – Essential for operation, sold separately

Optional Accessories:

• Floor Standing Leg Kit – Converts wall-mounted heater to floor-standing configuration
• Steam Outlet Commercial – Steam distribution system for enhanced löyly experience
• Door Contact Switch – Enables safety interlock and remote control features
• External On/Off Switch – Optional remote control capability

❓ Frequently Asked Questions

Q: What size room will this heater work for? A: The Tylö Sense Commercial 20 is designed for commercial sauna rooms between 22 and 43 m³. For rooms with glass doors, uninsulated walls or high ceilings, add 25-50% to your base volume calculation when determining suitability.

Q: What electrical supply do I need? A: This heater requires a 400-415 V three-phase supply with neutral (3N~), a minimum 10 mm² cable and a 32 A circuit breaker. A qualified commercial electrician must carry out the installation.

Q: Is this suitable for domestic use? A: No. The Sense Commercial range is designed specifically for commercial and public installations where regulations require separation of heating elements from electronic controls. For home saunas, consider the Tylö Sense domestic range.

Q: Are sauna stones included? A: No. You will need to purchase approximately 25 kg of sauna stones separately. We recommend Tylö vulcanite stones or equivalent high-quality commercial-grade stones.

Q: Do I need to buy anything else to make it work? A: Yes. This is a heater unit only. You will also need: a relay box (RB Commercial) and a control panel (Pure or Elite). These must be purchased separately.

Q: Can I use my existing control panel? A: Possibly. The Sense Commercial 20 is compatible with older Tylö mechanical control panels (TS 30 series for the 16 kW model) as well as modern Elite and Pure digital panels. Check compatibility with your existing equipment before purchase.

Q: How long does it take to heat up? A: Heat-up time depends on room size, insulation quality and starting temperature. Typically 30-60 minutes for a well-insulated commercial sauna within the specified capacity range.

Q: What is the warranty? A: Tylö provides a 2-year manufacturer warranty. Contact Parts4Tubs for full warranty terms and conditions.

Q: Can this heater be floor-mounted? A: Yes. While designed for wall mounting, an optional leg kit is available to convert to floor-standing configuration.

📥 Downloads & Resources

📄 Sense Commercial 10-20 Installation Manual – Complete installation guide with wiring diagrams and clearance specifications

📄 Sense Commercial 10-20 User Guide – Operating instructions and maintenance guidance

📄 Statement of Test Results – CE certification and test documentation

🏆 Why Choose the Tylö Sense Commercial 20

✅ Swedish Engineering Excellence – Over 70 years of Tylö expertise in every unit, manufactured in Sweden to the highest standards

✅ Powerful 20 kW Output – Designed to handle large commercial spaces up to 43 m³ with ease

✅ Energy-Intelligent Design – Split Output technology delivers genuine energy savings during operation

✅ Safety First – ThermoSafe™ coating and comprehensive protection systems ideal for public use

✅ Universal Compatibility – Works with both modern digital and legacy mechanical control systems

✅ Commercial Durability – Built for continuous daily operation in demanding professional environments

✅ Comprehensive Documentation – Full installation manuals, wiring diagrams and CE certification

🤝 Why Buy from Parts4Tubs

✅ UK-Based Company – Local support from our Northamptonshire headquarters

✅ Expert Sauna Knowledge – Specialist advice from experienced wellness equipment professionals

✅ Competitive UK Pricing – Great value backed by genuine product expertise

✅ Fast UK Delivery – Efficient dispatch to get your project moving

✅ Full Warranty Support – Authorised Tylö stockist with manufacturer warranty backing

✅ Easy Returns – Hassle-free returns within 30 days if you change your mind

Need Help? Contact our team on 01604 969202 for sizing advice, technical questions or to discuss your commercial sauna project requirements.

✨ Summary

The Tylö Sense Commercial 20 delivers powerful, reliable heating for large commercial sauna installations from 22 to 43 m³. With 20 kW of Swedish-engineered performance, intelligent Split Output energy saving, ThermoSafe™ protection and compatibility with both modern digital and legacy control systems, it’s the professional choice for hotels, fitness centres, spas and wellness facilities. Backed by Tylö’s 2-year warranty and Parts4Tubs expert UK support. Order today for fast delivery.