💨 Genesis Air Blower G120 – 1200W | High-Performance Spa & Hot Tub Blower

Powerful 1.61 HP air blower engineered for larger hot tubs, swim spas, and commercial hydrotherapy applications 🫧

📋 Product Overview

The Genesis G120 Air Blower is a professional-grade 1200W unit designed to deliver exceptional bubble massage performance for larger hot tubs, swim spas, and demanding commercial applications. Manufactured by Balboa Water Group (under the HydroAir brand), this blower has earned its reputation as the industry standard for whirlpool baths and spa installations worldwide.

With an impressive 1.61 true horsepower output, the G120 generates powerful, invigorating airflow through 8-15 air jets simultaneously, creating thousands of bubbles that rise to the surface for an immersive hydrotherapy experience. The distinctive blue polypropylene housing provides exceptional durability and moisture resistance, while the IPX5 waterproofing ensures reliable operation in demanding wet environments.

The G120-2NN-S variant features electronic on/off control with automatic air system dry-out functionality – a sophisticated protection feature that extends component lifespan by purging residual moisture from the air lines after each use. This intelligent design, combined with European safety certifications (EN60335-1/EN60335-2-60), makes the Genesis G120 the trusted choice for spa professionals and discerning hot tub owners alike.

⭐ Key Features

✅ Powerful 1.61 HP Motor Output – Delivers robust airflow capacity suitable for larger hot tubs, swim spas, and commercial installations requiring 8-15 air jets

✅ Automatic Air System Dry-Out – Intelligent timer-controlled function activates 30 minutes after shutdown, running a 5-minute purge cycle to eliminate residual moisture and prevent water damage

✅ IPX5 Water Protection Rating – Complete protection against water jets from any direction, ensuring reliable operation in demanding spa environments

✅ Blue Polypropylene Housing – Durable, water-resistant, rigid and abrasion-resistant construction provides long-term protection against the humid conditions beneath spas

✅ Rotatable Outlet Union Included – 1.5″ BSP threaded connection with 32mm union fitting allows flexible plumbing alignment during installation

✅ Electronic On/Off Control – Designed for integration with spa packs, touchpads, and control systems for seamless 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 easily swapped on-site to match existing wiring configurations

✅ Compact, Space-Efficient Design – 280mm x 190mm x 180mm footprint fits comfortably in most equipment compartments

🔧 Technical Specifications

Specification	Details
Model Number	Genesis G120-2NN-S
Power Output	1200W
Voltage	230VAC
Frequency	50Hz
Current Draw	5.2 Amps
Horsepower	1.61 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
Jet Capacity	8-15 air jets
Maximum Distance to Pool	5 metres
Control Type	Electronic On/Off (NN)
Safety Certifications	EN60335-1, EN60335-2-60
Manufacturer	Balboa Water Group / HydroAir
Alternative Part Number	HydroAir G120-2NN-S

🎯 Real-World Applications

🛁 Large Hot Tub & Spa Enhancement

The G120’s 1.61 HP output makes it the ideal choice for larger residential hot tubs requiring powerful bubble massage. With capacity for 8-15 air jets, it delivers an invigorating full-body massage experience that smaller blowers simply cannot match. Position the blower near heat-generating equipment to draw warm ambient air, enhancing comfort even in non-heated configurations.

🏊‍♂️ Swim Spas & Exercise Pools

Swim spas and larger exercise pools demand substantial airflow to create effective bubble benches, relaxation zones, and hydrotherapy features. The G120 delivers consistent, powerful performance across extended pipe runs up to 5 metres, making it suitable for installations where the blower must be positioned away from the water feature.

💆 Hydrotherapy & Wellness Installations

Professional wellness centres, physiotherapy clinics, and rehabilitation facilities rely on the Genesis G120 for therapeutic air massage systems. The European safety certifications and automatic dry-out function meet the stringent requirements of commercial health and wellness environments.

🏢 Commercial Spa Installations

Hotels, health clubs, day spas, and leisure centres choose the Genesis range for its proven reliability under continuous commercial operation. The robust polypropylene housing withstands the demands of high-usage environments, while the thermal protection ensures safe operation even during extended periods of use.

🔄 Blower Replacement & Upgrade

If you’re replacing a worn, noisy, or inefficient blower, the G120 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.

🛠️ 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: 5.2 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 to spa users without tools
• Position near heat-generating equipment (pumps, heaters) to draw warm ambient air
• Avoid cold air intake which will cause cold air injection into the spa water

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
• Maximum Distance: 5 metres from blower to water feature
• Securely fix pipe/hose system to the blower outlet

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. This safety feature protects the motor from damage during abnormal operating conditions.

Maintenance

No special maintenance is 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 G120 Air Blower?

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

✅ 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 the demanding environment beneath spas and hot tubs

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

✅ Manufacturer Warranty – Backed by standard manufacturer warranty with extended warranty options available for additional peace of mind

🚚 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 spa 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 G120 1200W Air Blower delivers professional-grade performance for larger hot tubs, swim spas, and commercial hydrotherapy installations. With 1.61 HP of power, IPX5 waterproofing, automatic dry-out protection, and European safety certifications, it’s the reliable choice for demanding applications requiring 8-15 air jets. The durable blue polypropylene construction and proven Balboa/HydroAir engineering ensure years of quiet, dependable bubble massage performance. Order today and experience the difference genuine quality makes to your spa.

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.