♨️ Harvia HGD110XW 10.8kW WiFi Steam Generator – 6-21 m³ Capacity

High-capacity Finnish steam generation with smartphone control for commercial spas and large wellness installations

📋 Product Overview

The Harvia HGD110XW delivers serious steam power for demanding commercial environments and larger residential projects. With an impressive 14.6 kg/hour steam output from its 10.8kW heating system, this professional-grade generator fills steam rooms from 6 to 21 cubic metres with soft, enveloping steam that clients remember.

Engineered for heavy-duty 24/7 spa operation, the HGD110XW features Harvia’s robust stainless steel construction with a generous water container designed for extended sessions and high-frequency use throughout the day. The titanium heating elements are built to withstand mineral-rich water conditions, ensuring reliable performance in commercial settings where downtime is not an option.

The integrated Harvia Xenio WiFi touchscreen brings intelligent control to your steam room operations. Through the MyHarvia smartphone app, you can remotely activate generators, monitor room temperatures, schedule warm-up times, and manage multiple units from a single interface—essential capabilities for busy spa facilities. With 75 years of Finnish sauna and steam expertise behind every component, the HGD110XW represents the intersection of traditional wellness wisdom and modern technology.

✨ Key Features

✅ 14.6 kg/h Steam Output – Powerful steam generation rapidly fills larger rooms and maintains consistent humidity even during peak commercial usage

✅ MyHarvia WiFi Control – Remote smartphone operation enables advance warm-up scheduling and real-time temperature monitoring from anywhere

✅ Heavy-Duty Commercial Design – Large water container and robust construction engineered for continuous 24/7 professional spa operation

✅ Titanium Heating Elements – Superior corrosion resistance ensures extended service life in hard water conditions and high-volume commercial use

✅ Stainless Steel Housing – Durable, professional-grade exterior resists moisture damage and maintains appearance through years of intensive use

✅ Xenio WiFi Touchscreen – Advanced control panel manages temperature, timing, delay start, lighting, ventilation, and aromatherapy intensity

✅ Multi-Generator Serialisation – Control multiple HGD units from a single panel—perfect for spa complexes with several treatment rooms

✅ Three-Phase Power – 400V 3N~ connection delivers efficient, reliable power for commercial installations

✅ Modular Serviceability – All key components including heating elements, circuit boards, valves, and fragrance pumps are replaceable and cross-compatible with other Harvia models

✅ Auto-Drain Compatible – Optional automatic discharge valve enables hands-free maintenance and extends component life

✅ Aromatherapy Ready – Connect optional fragrance pump for professional-quality wellness experiences with variable scent intensity

✅ CE & EAC Certified – Full European compliance ensures safety standards across all commercial and residential applications

⚙️ Technical Specifications

Specification	Value
Model	HGD110XW
Power Rating	10.8 kW
Steam Output	14.6 kg/hour
Voltage	400V 3N~
Fuses (400V 3N~)	3 × 16 A
Supply Cable (400V 3N~)	5 × 2.5 mm²
Electrical Frequency	50/60 Hz
Room Capacity	6–21 m³ (varies by construction)
Dimensions (H × W × D)	435 × 460 × 220 mm
Weight (Empty)	11.8 kg
Water Inlet Pressure	2.0–4.0 bar
Water Inlet Connection	G¾” male
Drain Connection	G½” female
Temperature Range	30–55 °C
Timer Range	10 minutes–24 hours
Delay Start	10 minutes–12 hours
Max Light Connection	100 W
Max Fan Connection	100 W
Max OUT1/OUT2 Power	50 W each
IP Rating	IPX2
Certifications	CE, EAC
Control Panel	Xenio WiFi Touchscreen
Control Panel Dimensions	85 × 24 × 110 mm
Sensor Cable Length	5 m
Package Dimensions	500 × 220 × 580 mm
Gross Weight	14.6 kg
User Group	Professionals
Warranty (Domestic)	2 years
Warranty (Commercial)	1 year
EAN	6417659030984

📏 Room Sizing Guide

Principle: The Harvia HGD110XW at 10.8kW is designed for steam rooms between 6 and 21 cubic metres, with exact capacity depending significantly on wall construction, insulation quality, and ventilation configuration.

Official Harvia Room Size Recommendations:

Wall Construction Type	Recommended Room Size
Light wall (acrylic, etc.) – ventilated	6–10 m³
Tiled lightweight wall – ventilated	10–14.5 m³
Standard tiled wall	8–12 m³
Tiled lightweight wall – unventilated	12–17 m³
Tiled stone/masonry wall – unventilated	15–21 m³

Adjustment Factors:

Condition	Adjustment
Glass walls or doors	Add 1 m³ per m² of glass
Natural stone surfaces	Add 25–35% to total volume
High ceilings (above 2.4m)	Calculate additional volume
Poor insulation	Add 25–30% to total volume
Non-insulated masonry/concrete	Double the calculated volume
Frequent door opening (high-traffic commercial)	Reduce effective capacity by 15–20%

Worked Example:

📍 Example Room: 3.0m × 2.5m × 2.4m (boutique hotel steam room)

• Base volume: 18.0 m³
• Fully tiled walls with stone benches
• Total calculated: 18.0 m³
• HGD110XW 10.8kW: ✅ Ideal for tiled/stone construction

📍 Example Room: 2.5m × 2.5m × 2.5m (day spa treatment room)

• Base volume: 15.625 m³
• Glass door (0.9m × 2.2m = 1.98 m²): +1.98 m³
• Total calculated: 17.6 m³
• HGD110XW 10.8kW: ✅ Excellent capacity with margin for commercial use

📍 Example Room: 4.0m × 3.0m × 2.5m (large gym steam room)

• Base volume: 30.0 m³
• HGD110XW 10.8kW: ⚠️ Exceeds capacity—consider HGD150XW or HGP series

💰 Running Costs

Energy Rate Used: £0.245/kWh (UK average December 2024—verify current rates at Ofgem)

Cost Calculation Table:

Usage Level	Sessions/Week	Est. Hours/Year	Annual Cost
🏠 Regular Home Use	4 × 30 min	~104	£275
🧖 Heavy Home Use	6 × 45 min	~234	£620
🏋️ Light Commercial	15 × 45 min	~585	£1,549
🏨 Medium Commercial	25 × 45 min	~975	£2,582
💆 Heavy Commercial	40 × 45 min	~1,560	£4,131

Calculation Formula:

Annual Cost = kW × Hours/Year × £0.245

Example (HGD110XW, Light Commercial - 15 sessions/week × 45 min):
10.8 kW × 585 hours × £0.245 = £1,548.63

Per session cost (30-minute session):
10.8 kW × 0.5 hours × £0.245 = £1.32

Per session cost (45-minute commercial session):
10.8 kW × 0.75 hours × £0.245 = £1.98

💡 Commercial Efficiency Note: The WiFi scheduling capability allows precise warm-up timing to match opening hours, eliminating wasted energy. The powerful 14.6 kg/h steam output means faster warm-up compared to lower-powered alternatives, potentially reducing per-session energy consumption.

⚠️ Actual costs depend on usage patterns, session length, room size, insulation quality, and current energy rates.

🔌 Installation Requirements

Electrical Requirements:

Requirement	Specification
Voltage	400V 3N~
Fuse Rating	3 × 16 A
Cable Size	5 × 2.5 mm²
Dedicated Circuit	Required
RCD Protection	Required

⚠️ Note: The HGD110XW is designed primarily for three-phase 400V installation. Single-phase operation is not specified for this model—consult with a qualified electrician regarding your supply requirements.

Location Requirements:

Requirement	Specification
Installation Location	Dry interior space only
Mounting Position	Wall-mounted, vertical orientation
Safety Distance (Side)	250 mm minimum
Safety Distance (Ceiling)	200 mm minimum
Safety Distance (Floor)	150 mm minimum
Installation Opening	Minimum 1m × 1m access
Ventilation	Adequate airflow if enclosed in cabinet
Floor Drain	Required for discharge water

Steam Pipe Installation:

• Minimum internal diameter: 15 mm
• Material: Copper pipe recommended
• Steam nozzle height: 100–300 mm above floor
• Seal pipe entry with silicone
• Multiple nozzles recommended for rooms >12 m³

Temperature Sensor Placement:

• Install on steam room ceiling or wall
• Height: 1,700–3,000 mm above floor level
• Sensor cable length: 5 metres supplied
• Keep away from supply air vents and steam nozzles

⚠️ IMPORTANT: Installation must be carried out by a qualified electrician 
and plumber in accordance with BS 7671 (IET Wiring Regulations), 
Water Supply Regulations, and local building codes. Commercial installations 
may require Building Regulations approval and periodic inspection certification.
Never install the generator where it may freeze or be exposed to harmful substances.

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🚿 Water Requirements

Water Supply:

Requirement	Specification
Water Pressure	2.0–4.0 bar
Flow Rate	8–12 litres/minute recommended
Inlet Connection	G¾” male thread
Water Type	Cold mains water
Stop Valve	Required on supply line

Drainage:

Requirement	Specification
Drain Connection	G½” female thread
Drain Type	Gravity drainage to floor drain
Auto-Drain Valve	Optional accessory (essential for commercial)
Floor Drain	Required (do not install directly above)

Water Quality Recommendations:

Parameter	Recommended Level
Manganese (Mn)	<0.05 mg/l
Calcium (Ca)	<100 mg/l
Chloride	<12 mg/l
Copper	<0.2 mg/l
Overall Hardness	Soft water preferred

💧 Commercial Installation Essential: For professional spa environments with high usage, a dedicated water softener system is critical. Hard water significantly accelerates limescale buildup on heating elements, reducing efficiency and requiring more frequent maintenance. The automatic discharge valve (optional) combined with soft water provides the optimal low-maintenance configuration for commercial operations.

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🛡️ Safety Features & Certifications

Built-in Safety Systems:

• ✅ Low water level protection with automatic water intake
• ✅ Overpressure relief valve (never obstruct)
• ✅ Overheat protection with manual reset
• ✅ Programmable auto-shutoff timer (maximum 24 hours)
• ✅ Temperature regulation via external sensor
• ✅ Splash-proof construction (IPX2 rated)
• ✅ Power failure memory function (configurable: ON1, ON2, or OFF)
• ✅ Control panel lock function for public installations

Certifications:

• ✅ CE Marked—European Conformity
• ✅ EAC Certified—Eurasian Conformity
• ✅ IPX2 Rated—Protected against water drops when tilted up to 15°

Commercial Safety Considerations:

⚠️ Steam nozzles, pipes, and connections become extremely hot during operation—install protective barriers in public access areas

⚠️ Steam output is at boiling temperature—position nozzles to prevent direct contact with seated users

⚠️ Never block or obstruct the overpressure valve under any circumstances

⚠️ Display appropriate safety signage in commercial steam rooms

⚠️ Ensure emergency stop controls are accessible in professional installations

⚠️ Commercial installations should include appropriate legionella management protocols

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📍 Ideal Applications

Application	Room Size	Typical Users	Suitability
🧖 Day Spa Steam Room	12–18 m³	4–8 people	✅ Ideal
🏨 Hotel Wellness Suite	10–16 m³	4–6 people	✅ Ideal
♨️ Hammam/Turkish Bath	12–21 m³	6–10 people	✅ Ideal
🏋️ Gym/Fitness Centre	12–18 m³	6–10 people	✅ Ideal
💆 Wellness Centre	10–16 m³	4–8 people	✅ Ideal
🏢 Corporate Wellness	12–18 m³	6–10 people	✅ Ideal
🏠 Large Private Spa	10–15 m³	4–6 people	✅ Suitable
🏥 Rehabilitation Facility	12–18 m³	4–8 people	✅ Suitable

Best Suited For:

• Commercial day spas and wellness centres
• Hotel and resort spa facilities
• Gym and fitness centre steam rooms
• Private hammam and Turkish bath installations
• Corporate wellness facilities
• Rehabilitation and hydrotherapy centres
• Large residential steam room projects
• Any installation requiring commercial-grade durability with smart control

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🎛️ Control Options & Accessories

Included Control System:

The Harvia Xenio WiFi touchscreen control panel comes as standard:

• Display: Touch-sensitive interface with LED status indicators
• Temperature Control: 30–55°C adjustable range
• Timer: 10 minutes to 24 hours continuous operation
• Delay Start: 10 minutes to 12 hours pre-programming
• Lighting Control: Up to 100W external lighting circuit
• Fan Control: Up to 100W ventilation fan circuit
• Additional Outputs: 2 × 50W auxiliary connections
• Fragrance Control: Variable intensity (when pump connected)
• Ventilation/Dehumidifying: ON, OFF, or DRY mode (60-minute cycle)
• WiFi Connectivity: MyHarvia app for iOS and Android
• Multi-Unit Control: Manage multiple steam generators from single panel
• Panel Lock: Prevents unauthorised adjustments in public areas
• Panel Dimensions: 85 × 24 × 110 mm
• Sensor Cable Length: 5 metres

Compatible Optional Accessories:

• Automatic discharge valve – Essential for commercial installations; enables programmable self-flushing after each session
• Fragrance pump – Delivers aromatherapy directly into steam output with variable intensity control
• Additional steam nozzles – Recommended for rooms >12 m³ or complex layouts
• Water softener – Critical for hard water areas and all commercial installations
• External lighting – Create atmospheric illumination controlled from the panel

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🍃 Aromatherapy

The HGD110XW fully supports professional-grade aromatherapy integration:

• Integration: Direct connection to Xenio WiFi control panel
• Intensity Control: Variable fragrance strength adjustable via touchscreen or smartphone app
• Operation: Fragrance is injected into the steam pipe near the nozzle for even distribution
• Commercial Programming: Configurable dosing for consistent client experiences
• Oil Type: Water-soluble essential oils recommended
• Popular Commercial Fragrances: Eucalyptus, menthol, lavender, pine, citrus, mint, rosemary, chamomile

💡 Commercial Tip: Consider offering signature scent experiences or rotating aromatherapy programmes throughout the day. The variable intensity control allows you to match scent strength to room size and individual client preferences, enhancing the perceived value of your wellness services.

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💬 Frequently Asked Questions

Q: What size steam room will this generator heat? A: The HGD110XW is suitable for steam rooms between 6 and 21 cubic metres, depending on wall construction and insulation. Standard tiled rooms work optimally in the 10–18 m³ range. For rooms with extensive glass, natural stone, or poor insulation, reduce the maximum capacity accordingly.

Q: Is this unit suitable for commercial use? A: Absolutely. The HGD110XW is classified by Harvia as a “Professional” grade product, featuring heavy-duty construction with a large water container designed for continuous 24/7 spa operation. For very high-traffic commercial facilities, consider the HGP series with integrated auto-drain and fragrance pump.

Q: How quickly does it produce steam? A: With 14.6 kg/hour steam output, the HGD110XW produces steam rapidly—typically within 15–25 minutes for appropriately sized rooms. This high output also means faster recovery after door openings, essential for commercial environments with frequent client turnover.

Q: What electrical supply is required? A: The HGD110XW requires 400V three-phase supply (3 × 16A fuses, 5 × 2.5 mm² cable). This is standard for commercial installations. A qualified electrician must assess your supply capacity before installation.

Q: Can I control multiple steam rooms from one location? A: Yes, HGD steam generators can be serialised to manage multiple units from a single Xenio control panel. This is ideal for spa complexes with several treatment rooms, allowing centralised monitoring and control of your entire steam room operation.

Q: Is a water softener necessary? A: For commercial installations, a water softener is strongly recommended regardless of local water hardness—the increased usage accelerates any limescale issues. For residential use, it depends on your water hardness. In areas above 100 ppm calcium, a softener is essential for both applications.

Q: What maintenance is required? A: Regular descaling frequency depends on usage and water hardness. Commercial installations should use the optional automatic discharge valve for hands-free maintenance. The sediment cup should be emptied periodically. All major components including heating elements are designed for easy replacement when needed.

Q: What warranty coverage is provided? A: Harvia provides a 2-year warranty for domestic/private use and a 1-year warranty for commercial applications. All components are modular and replaceable, ensuring long-term serviceability.

📄 Downloads & Resources

 Harvia HGD XW Installation & User Manual – Complete installation guide with wiring diagrams, technical specifications, and operating instructions (available in English, German, French, Italian, Dutch, Spanish, Swedish, and Finnish

🏆 Why Choose the Harvia HGD110XW

• ✅ Commercial Steam Power – 10.8kW output with 14.6 kg/h steam generation handles demanding spa environments and busy treatment schedules
• ✅ Professional Classification – Harvia designates this unit for “Professionals”—built for heavy-duty 24/7 commercial operation
• ✅ Finnish Excellence – 75 years of Harvia expertise in heat technology ensures reliability when your business reputation depends on it
• ✅ Intelligent Operations – WiFi control and multi-unit serialisation streamlines spa management and reduces operational overhead
• ✅ Titanium Durability – Premium heating elements resist mineral buildup for extended service life in demanding commercial settings
• ✅ Future-Proof Serviceability – Modular design with cross-compatible components ensures decades of economical operation

🛒 Why Buy from Parts4Tubs

• ✅ UK-based company with dedicated local customer support
• ✅ Fast UK delivery on in-stock items
• ✅ Expert advice from experienced steam room and spa specialists
• ✅ Competitive pricing with price-match commitment
• ✅ Full manufacturer warranty support and after-sales service
• ✅ Commercial project consultation and specification assistance available
• ✅ Easy returns within 30 days for complete peace of mind

💫 Summary

The Harvia HGD110XW 10.8kW WiFi steam generator delivers professional-grade performance for steam rooms up to 21 m³. With powerful 14.6 kg/hour steam output, intelligent smartphone control via the MyHarvia app, and durable titanium heating elements, this commercial-classified unit is the ideal choice for day spas, hotel wellness centres, gym facilities, and large private installations. The multi-generator serialisation capability makes it perfect for spa complexes requiring centralised control of multiple treatment rooms. Backed by Harvia’s 75-year heritage of Finnish quality and Parts4Tubs’ expert UK support, the HGD110XW is engineered for demanding applications where consistent performance and reliability are essential. Order today for fast delivery.