🫧 Genesis Air Blower G50 – 500W | Compact Whirlpool Bath & Small Hot Tub Blower

Reliable 0.6 HP air blower perfectly sized for whirlpool baths, small hot tubs, and bespoke hydrotherapy systems 🌀

ℹ️ Product Overview

The Genesis G50 Air Blower is a compact yet powerful 500W unit specifically engineered for whirlpool baths, small hot tubs, and bespoke hydrotherapy installations. Manufactured by Balboa Water Group under the HydroAir brand, this blower has become the industry standard for residential bath applications, trusted by leading whirlpool bath manufacturers including Airbath International.

Delivering 0.6 horsepower of consistent airflow, the G50 creates thousands of invigorating bubbles that transform an ordinary bath into a luxurious spa experience. The distinctive blue polypropylene housing provides excellent durability and moisture resistance, while IPX5 waterproofing ensures reliable operation in humid bathroom environments.

The G50-2NN-S variant features electronic on/off control designed for integration with spa packs, control systems, and touchpads. This model includes automatic air system dry-out functionality – an intelligent feature that purges residual moisture from the air lines after use, preventing water damage and extending component lifespan. With European safety certifications (EN60335-1/EN60335-2-60) and a space-efficient design, the Genesis G50 delivers professional-grade performance in a package perfectly suited for residential wellness applications.

✨ Key Features

✅ Efficient 0.6 HP Motor Output – Delivers consistent, powerful airflow ideal for whirlpool baths and small hot tubs without excessive energy consumption

✅ Automatic Air System Dry-Out – Timer-controlled function activates after shutdown, running a purge cycle to eliminate moisture and protect internal components from water damage

✅ IPX5 Water Protection Rating – Full protection against water jets from any direction, ensuring safe and reliable operation in bathroom and spa environments

✅ Blue Polypropylene Housing – Durable, water-resistant, rigid and abrasion-resistant construction withstands the humid conditions typical of bathroom installations

✅ Rotatable Outlet Union Included – 1.5″ BSP threaded connection with 32mm union fitting allows flexible plumbing alignment in tight equipment spaces

✅ Electronic On/Off Control – Designed for seamless integration with spa packs, touchpads, and control systems for convenient operation

✅ Thermal Motor Protection – Built-in thermal cut-out safeguards the motor from overheating, automatically resetting once cooled to room temperature

✅ European Safety Certified – Fully compliant with EN60335-1 and EN60335-2-60 safety standards for bath and spa equipment

✅ Replaceable Power Cable – Standard 3-core cable can be swapped on-site to match existing wiring configurations

✅ Compact Space-Efficient Design – 280mm x 190mm x 180mm footprint fits easily beneath baths and in tight equipment compartments

⚙️ Technical Specifications

Specification	Details
Model Number	Genesis G50-2NN-S
Power Output	500W
Voltage	230VAC
Frequency	50Hz
Current Draw	2.2 Amps
Horsepower	0.6 HP
Dimensions (L x W x H)	280mm x 190mm x 180mm
Connection Type	1.5″ BSP Threaded Male
Union Fitting	32mm (included)
Outer Thread Diameter	47mm
Inner Thread Diameter	34mm
Cable Type	Standard 3-core (replaceable)
Housing Material	Blue Polypropylene (PP)
IP Rating	IPX5
Control Type	Electronic On/Off (NN)
Heating Element	Non-heated
Safety Certifications	EN60335-1, EN60335-2-60
Manufacturer	Balboa Water Group / HydroAir
Alternative Part Numbers	HydroAir G50-2NN-S, GB50-2NN-S

🏠 Real-World Applications

🛁 Whirlpool Bath Enhancement

The G50 is the blower of choice for whirlpool bath manufacturers and installers. Its 500W output provides the perfect balance of powerful bubble massage and quiet operation for residential bathroom installations. The compact dimensions allow easy mounting beneath standard bath frames, while the low 2.2A current draw ensures compatibility with typical household electrical circuits.

♨️ Small Hot Tub Installations

For smaller hot tubs and compact spa systems, the G50 delivers invigorating bubble massage without the overkill of higher-powered units. Position the blower near heat-generating equipment to draw warm ambient air, enhancing comfort even without a built-in heating element.

💆 Bespoke Hydrotherapy Systems

Custom wellness installations, rehabilitation baths, and specialist hydrotherapy equipment benefit from the G50’s reliable performance and European safety certifications. The electronic control interface integrates seamlessly with bespoke control systems and automation equipment.

🔄 Blower Replacement & Upgrade

If you’re replacing a worn, noisy, or inefficient blower in your whirlpool bath, the G50 offers excellent compatibility with existing installations. The standard 1.5″ BSP connection and included 32mm union simplify retrofit installations, while the replaceable power cable allows adaptation to various wiring configurations. Very common as a replacement for Airbath International whirlpool baths.

🏢 Light Commercial Applications

Small day spas, beauty salons, and wellness treatment rooms requiring a reliable, low-maintenance blower for individual treatment baths find the G50 an ideal solution. The automatic dry-out feature reduces maintenance requirements, while the robust construction ensures consistent performance under regular use.

🔧 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: 230VAC, 50Hz
• Current Draw: 2.2 Amps
• Cable: Standard 3-core (Class I with earth, or Class II without)
• Wiring Colours: Live (Brown), Neutral (Blue), Earth (Yellow/Green)
• Isolation: Fixed wiring switch with minimum 3mm contact separation per pole required

Mounting & Positioning

• Mount in a well-ventilated location protected from flooding
• Secure using three screws through the rubber mounting feet
• Ensure the blower is not accessible without tools
• Position near heat-generating equipment to draw warm ambient air
• Avoid cold air intake which will cause cold air injection into the bath water
• Compact dimensions (280 x 190 x 180mm) suit mounting beneath standard bath frames

Plumbing Requirements

• Connection: 1.5″ BSP threaded male with 32mm union (included)
• Essential: Install a double air loop and check valve, OR two check valves, above maximum water level
• Securely fix pipe/hose system to the blower outlet
• Connection compatible with 33mm outer diameter tubing

Control System Integration

• This model (NN) requires a separate control system (spa pack, touchpad, or relay) to operate
• Does not include built-in pneumatic air switch or internal heater
• Check pin-out diagram on your spa pack for correct wiring connections

Thermal Protection

The built-in thermal motor protection will automatically cut power if the motor overheats. If activated, power must be disconnected and only restored once the blower has cooled to room temperature.

Maintenance

No special maintenance required. The intake filter can be cleaned periodically by removing the two screws at the back of the blower to access the base. If the power supply cord becomes damaged, replacement must only be carried out by the manufacturer or a qualified service agent.

📂 Downloads & Resources

📄 Genesis Blower Installation Manual – Download PDF

🥇 Why Choose the Genesis G50 Air Blower?

✅ Industry-Leading Brand – Balboa Water Group (HydroAir) is the trusted name in bath and spa equipment, with Genesis blowers installed in countless whirlpool baths worldwide

✅ Purpose-Built for Baths – The 500W output is specifically optimised for whirlpool bath and small hot tub applications, delivering effective bubble massage without excessive power consumption

✅ Proven Reliability – Built to European safety standards (EN60335-1/EN60335-2-60) with quality construction that delivers years of dependable service

✅ Intelligent Protection – Automatic air dry-out function and thermal motor protection extend component lifespan and prevent costly damage

✅ IPX5 Waterproofing – Complete protection against water ingress ensures reliable operation in bathroom and spa environments

✅ Easy Installation – Rotatable outlet, included union fitting, and replaceable power cable simplify both new installations and retrofit replacements

💯 Why Buy From Parts4tubs?

✅ UK-Based Specialist Supplier – Dedicated hot tub, pool, and spa parts experts with in-depth product knowledge

✅ Expert Technical Advice – Get help selecting the right blower and accessories for your specific application

✅ Fast UK Delivery – Quick despatch to get your whirlpool bath back up and running without delay

✅ Competitive Pricing – Great value on genuine manufacturer parts

✅ Genuine Manufacturer Parts – Authentic Balboa/HydroAir Genesis blowers, not inferior copies

✅ Dedicated Customer Support – Friendly, knowledgeable team ready to assist with your enquiries

✅ Secure Online Ordering – Safe, encrypted checkout for peace of mind

✅ Easy Returns Policy – Hassle-free returns if you need to exchange or return

🎯 Summary

The Genesis G50 500W Air Blower is the ideal choice for whirlpool baths, small hot tubs, and bespoke hydrotherapy systems requiring reliable, efficient bubble massage. With 0.6 HP of power, IPX5 waterproofing, automatic dry-out protection, and European safety certifications, it delivers professional-grade performance in a compact, space-efficient package. The durable blue polypropylene construction and proven Balboa/HydroAir engineering ensure years of quiet, dependable operation. Order today and transform your bath into a luxurious home spa experience.

Considerations when replacing a blower

  When replacing a hot tub blower, there are a few important factors to consider. One of the most important considerations is ensuring that the voltage of the replacement blower matches the voltage of your hot tub’s electrical system. This is because using a blower with the wrong voltage can result in damage to the blower, the hot tub’s electrical system, or both. Check if the blower you are replacing is 230V or 120V – it makes a difference!   While the power of the blower is not necessarily important, it’s a good idea to select a replacement blower that has a similar power rating to your existing blower. This will help ensure that the replacement blower is capable of producing the desired air pressure and flow rate in your hot tub.   Another factor to consider when replacing a blower is the size of the blower’s outlet pipes. If the replacement blower has different pipe sizes than your existing blower, you may need to use adaptors or convertors to connect the blower to your hot tub’s plumbing. This is important to ensure that the blower is properly connected and doesn’t leak air.   In summary, when replacing a hot tub blower, it’s important to match the voltage of the replacement blower to your hot tub’s electrical system and consider the power rating and pipe sizes of the replacement blower. By selecting a replacement blower that matches these criteria and ensuring that it’s properly installed, you can help ensure that your hot tub continues to provide a relaxing and enjoyable experience.  

Don’t forget the Check Valve!

  A check valve is an important component to consider when installing a hot tub blower. A check valve is a one-way valve that allows water to flow in one direction only, preventing backflow. In a hot tub, the check valve is typically installed on the air line between the blower and the jets. This keeps the water out of your blower – last thing you want is water in your blower. There are a few reasons why a check valve is important when using a hot tub blower:

1. Prevents water from entering the blower: Without a check valve, water can backflow from the hot tub plumbing into the blower when the blower is turned off. This can cause damage to the blower and can also create a safety hazard if water comes into contact with the blower’s electrical components.
2. Maintains air pressure: A check valve helps maintain the proper air pressure in the hot tub system. Without a check valve, air can escape from the hot tub jets when the blower is turned off, reducing the water pressure and the effectiveness of the massage feature.
3. Reduces noise: A check valve can help reduce noise in the hot tub plumbing system. When the blower is turned off, water can flow backwards through the air line and create a gurgling or burping noise. A check valve prevents this noise from occurring.

In summary, a check valve is an important component to consider when installing a hot tub blower. It helps prevent water from entering the blower, maintains air pressure, and reduces noise in the plumbing system. By including a check valve in your hot tub blower installation, you can help ensure that your hot tub runs smoothly and efficiently.  

Wiring a Hot Tub Blower

          When wiring a hot tub blower, it’s important to not only follow the manufacturer’s instructions but also to check the pin out diagram on the spa pack. The pin out diagram will show you the location of the various terminals and connectors on the spa pack, which you’ll need to connect to the blower. Here are the steps to wire a hot tub blower while checking the pin out diagram on the spa pack:

1. Turn off the power to the hot tub at the circuit breaker.
2. Locate the spa pack, which is usually located near the hot tub. Look for the pin out diagram, which should be located on the inside of the access panel.
3. Determine the voltage requirements of the blower. Most hot tub blowers operate on 120 volts, but some may require 240 volts. Make sure you have the correct voltage before proceeding.
4. Connect the blower to the control system. The blower should have a set of wires that connect to the spa pack. Match the wires from the blower to the corresponding terminals on the pin out diagram. Make sure to follow the manufacturer’s instructions for the proper wiring sequence.
5. Connect the blower to the power source. The power source is usually a dedicated GFCI breaker or a GFCI outlet that is installed near the hot tub. Again, follow the manufacturer’s instructions and match the wires from the power source to the corresponding terminals on the pin out diagram.
6. Test the blower to make sure it’s working properly. Turn on the power to the hot tub and activate the blower from the control panel. The blower should start up and produce the desired amount of air.
7. Secure all wiring connections and close the access panel to the spa pack.
8. Turn on the power to the hot tub at the circuit breaker.