🫧 Balboa Genesis Air Blower – G50‑2AH‑S (500W Heated, Pneumatic On/Off)
Warm, Soothing Bubbles at the Press of a Button – No Electronics Required
📋 Product Overview
The Balboa/HydroAir Genesis G50‑2AH‑S is a compact, high-performance 500W air blower with an integrated 250W heating element, engineered specifically for whirlpool baths and small hot tubs. This pneumatically controlled unit delivers warm, invigorating bubbles without requiring any electronic spa controller – simply connect to a standard air-button and press to enjoy.
Distinguished by HydroAir’s signature blue polypropylene housing, the G50‑2AH‑S combines reliability with user comfort. The built-in heater warms the airflow before it enters your water, eliminating uncomfortable cold bursts during operation and helping maintain your desired water temperature. With its rotatable outlet and included union fitting, installation is straightforward even in tight equipment bays.
Manufactured by HydroAir (a division of Balboa Water Group) according to European safety standards EN60335-1 and EN60335-2-60, this blower represents the trusted choice for discerning hot tub owners and professional installers across the UK and Europe.
⭐ Key Features
✅ 250W Integrated Heater – Delivers warm, comfortable airflow that prevents cold bursts and helps maintain water temperature during bubble operation
✅ Simple Pneumatic Control – One-press on/off operation via standard air-button; no electronic controller or spa pack required
✅ 500W Single-Speed Motor – Delivers approximately 1,800 litres per minute of consistent airflow at 1.8m head pressure
✅ Automatic Dry-Out Safety System – Built-in timer runs a 5-minute dry-out cycle after 30 minutes of inactivity, preventing moisture buildup and extending blower life
✅ Thermal Overload Protection – Motor automatically shuts down if overheating occurs, protecting against damage
✅ Rotatable Outlet Connection – 1½” BSP × 32mm union included, allowing flexible plumbing alignment during installation
✅ Compact Design – Dimensions of 276mm × 175mm × 180mm fit comfortably under most whirlpool baths and in tight spa equipment compartments
✅ Low-Noise Operation – Engineered for quiet performance, suitable for residential use and evening relaxation
✅ European Safety Certified – Manufactured to EN60335-1 and EN60335-2-60 standards for safe domestic use
🔧 Technical Specifications
| Specification | Details |
|---|---|
| Model Number (MPN) | G50‑2AH‑S (also known as GB50‑2AH‑S) |
| Motor Power | 500W |
| Heater Power | 250W |
| Total Power Draw | 750W combined |
| Current Draw | ~3.3A @ 230-240V |
| Voltage | 230-240V / 50Hz |
| Control Method | Pneumatic on/off via air-button |
| Speed | Single-speed |
| Airflow Output | ~1,800 litres/min |
| Pressure Head | ~1.8m H₂O |
| Jet Capacity | 8–15 air jets |
| Plumbing Connection | Rotatable 1½” BSP × 32mm union (included) |
| Pneumatic Tubing | 3mm internal diameter flexible tubing required |
| Dimensions | 276mm (L) × 175mm (W) × 180mm (H) |
| Cable | 1m bare-end cable |
| Housing Material | Blue polypropylene |
| Safety Features | Thermal cut-out, automatic dry-out timer |
| Heater Cut-Off Temperature | ~50°C (automatic) |
| Variable-Speed Compatible | No (single-speed only) |
| Classification | Class I or Class II (depending on installation) |
| Standards Compliance | EN60335-1, EN60335-2-60 |
| Usage Rating | Domestic whirlpool baths, small hot tubs |
🎯 Real World Examples & Applications
🛁 Whirlpool Bath Enhancement
Perfect for upgrading residential whirlpool baths to include warm bubble massage. The integrated heater ensures comfortable water temperature is maintained, while the pneumatic control provides simple, reliable on/off operation without complex electronics. Expect quiet evening operation that won’t disturb the household.
💆 Small Hot Tub Bubble Systems
Ideal for compact hot tubs requiring standalone air blower systems. The G50‑2AH‑S delivers sufficient airflow for 8–15 air jets, creating an invigorating hydrotherapy experience. The warm air feature is particularly valued during cooler months when cold air injection would otherwise reduce water temperature.
🔄 Pneumatic Blower Replacement
An excellent direct replacement for worn or ageing pneumatic Genesis blowers. If you’re upgrading from a non-heated model (such as the G50‑2AN‑S), the G50‑2AH‑S provides enhanced comfort with warm airflow while maintaining the same simple air-button operation and physical dimensions.
🏠 DIY Spa Installations
Well-suited for home spa builders and DIY enthusiasts creating bespoke hydrotherapy setups. The pneumatic control eliminates the need for electronic spa packs, simplifying wiring and reducing system complexity. The included union and rotatable outlet accommodate various plumbing configurations.
♨️ Therapy & Wellness Applications
Suitable for home wellness rooms and small therapeutic installations where warm bubble massage supports relaxation and muscle relief. The consistent airflow and heated operation create a professional spa-like experience in domestic settings.
🛠️ Installation Considerations
⚠️ Professional Installation Recommended – All electrical work must be carried out by a qualified electrician in accordance with national wiring regulations.
Electrical Requirements
- Supply Voltage: 230-240V AC, 50Hz
- Total Current Draw: Approximately 3.3A (750W combined)
- Cable: 1m bare-end supply cord (Class I or Class II wiring options)
- Isolation: Installation must include a fixed wiring switch with minimum 3mm contact separation in each pole
- Wire Colours: Brown (Live), Blue (Neutral), Yellow/Green (Earth – Class I only)
Mounting Position
- Suitable for mounting beneath whirlpool baths and hot tubs
- Secure using three screws through the rubber feet
- Must not be accessible to bathers without use of a tool
- Ensure adequate ventilation to prevent overheating
- Avoid cold air intake locations as this affects air temperature output
Plumbing Connections
- Outlet: Rotatable 1½” BSP × 32mm union (included)
- Pneumatic Control: 3mm internal diameter flexible tubing to air-button
- Critical: Install double air loop AND check valve (or two check valves) above maximum water level to prevent water backflow
Ventilation & Clearance
- Position in a well-ventilated location
- Avoid areas prone to flooding
- Ensure blower remains accessible for future inspection and maintenance
- Protect from direct water contact
Important Safety Notes
- The heater automatically cuts out if air temperature exceeds approximately 50°C
- Thermal protection will shut down the motor if overheating occurs; power must be disconnected and reconnected after cooling to room temperature
- Never use as a portable unit or with separate portable mats
- Water flowing back from the bath must never contact the blower
📥 Downloads & Resources
📄 Installation Manual – Manual-BGB-500.pdf Complete installation instructions, wiring diagrams, dry-out function details, and maintenance guidance (multi-language)
📄 Technical Datasheet – TechSheet-BGB-500.pdf Full Genesis blower range specifications, performance curves, model overview, and feature descriptions
🏆 Why Choose the Balboa Genesis G50‑2AH‑S
✅ Warm Air Comfort – The 250W integrated heater eliminates cold air bursts, enhancing your bathing experience and helping maintain water temperature
✅ Proven Reliability – Genesis blowers from HydroAir/Balboa have established an excellent reputation across the UK and European spa industry
✅ No Electronics Required – Simple pneumatic operation means fewer components to fail and straightforward troubleshooting
✅ Built-In Safety Features – Automatic dry-out function and thermal protection extend blower life and prevent damage
✅ Easy Retrofit Installation – Same dimensions and connection style as other Genesis 500W models, making replacement straightforward
✅ European Quality Standards – Manufactured to EN60335-1 and EN60335-2-60 safety standards for peace of mind
🛒 Why Buy From Parts4Tubs?
✅ UK-based specialist supplier with extensive hot tub parts expertise
✅ Expert technical advice available to help you choose the right blower
✅ Fast UK delivery to get your spa running quickly
✅ Competitive pricing on genuine manufacturer parts
✅ Genuine Balboa/HydroAir components – not imitations
✅ Dedicated customer support team ready to assist
✅ Secure online ordering for your peace of mind
✅ Easy returns policy if you need to exchange
✨ Summary
The Balboa Genesis G50‑2AH‑S delivers warm, soothing bubble massage through simple pneumatic control – perfect for whirlpool baths and small hot tubs where electronic spa packs aren’t required. With its 500W motor, integrated 250W heater, and automatic safety features, this blower offers reliable performance backed by HydroAir’s trusted reputation. Whether you’re upgrading an existing system or building a new installation, the G50‑2AH‑S provides the quality and comfort your spa deserves.
Ready to enhance your hot tub experience? Order your Balboa Genesis G50‑2AH‑S today!


