🫧 Genesis Air Blower G90 – 900W Non-Heated | Powerful Hot Tub Blower for Spaform, Catalina & Aegean Spas

Robust 1.21 HP electronic air blower delivering invigorating bubble massage for medium to large hot tubs 🌬️

📋 Product Overview

The Genesis G90 900W Air Blower is a powerful, reliable unit designed for medium to large hot tubs requiring substantial airflow without an integrated heating element. Manufactured by Balboa Water Group under the HydroAir brand, this non-heated variant is the ideal choice for spa owners who already have effective water heating systems or prefer to manage temperature independently.

Delivering an impressive 1.21 horsepower, the G90-2NN-S creates thousands of invigorating bubbles through 8-15 air jets, providing a luxurious therapeutic massage experience. The electronic on/off control integrates seamlessly with spa packs and control systems, while the automatic air system dry-out function protects the blower from moisture damage after each use.

Commonly found in Spaform, Catalina, and Aegean spas, this versatile blower features the distinctive blue polypropylene housing that identifies all Genesis products. With IPX5 waterproofing, European safety certifications, and a lower current draw than heated alternatives, the G90 900W offers an efficient, cost-effective solution for hot tub owners seeking powerful performance without the additional heating feature.

Pro Tip: A carefully positioned non-heated blower will naturally draw warm ambient air from nearby pumps and heating equipment, providing comfortable airflow without a dedicated heating element.

✨ Key Features

✅ Powerful 1.21 HP Motor – 900W motor delivers robust, consistent airflow for medium to large hot tubs with 8-15 air jets

✅ Lower Current Draw – 3.9 Amps operation is more efficient than heated alternatives, reducing electrical load

✅ Automatic Air System Dry-Out – Timer-controlled function purges residual moisture after use, preventing water damage and extending component lifespan

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

✅ Blue Polypropylene Housing – Durable, water-resistant, rigid and abrasion-resistant construction built to last

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

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

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

✅ Silent Operation – Engineered for quiet performance without sacrificing power

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

⚙️ Technical Specifications

Specification	Details
Model Number	Genesis G90-2NN-S
Power Output	900W
Voltage	230VAC
Frequency	50Hz
Current Draw	3.9 Amps
Horsepower	1.21 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 Spa	5 metres
Control Type	Electronic On/Off (NN)
Heating Element	None (non-heated)
Safety Certifications	EN60335-1, EN60335-2-60
Manufacturer	Balboa Water Group / HydroAir
Alternative Part Numbers	GB90-2NN-S, GB90-2NJ-B

🎯 Real-World Applications

🛁 Medium to Large Hot Tubs

The G90 900W is specifically designed for medium to large hot tubs requiring powerful bubble massage. With capacity for 8-15 air jets and 1.21 HP output, it delivers an invigorating full-body massage experience. Ideal for spas where the existing heating system maintains comfortable water temperature.

♨️ Spaform, Catalina & Aegean Spas

This is the non-heated original equipment blower for many Spaform, Catalina, and Aegean spa installations. The G90-2NN-S provides a direct replacement that maintains factory specifications without the added complexity of a heating element.

🔥 Spas with Separate Heating Systems

If your hot tub already has an effective water heater or you’ve found that heated blowers aren’t necessary in your climate or setup, the G90 900W offers the same powerful performance as its heated counterpart without the additional wattage. This results in lower running costs and reduced electrical load.

💆 Large Whirlpool Baths

The 900W power rating makes the G90 suitable for large whirlpool baths requiring substantial airflow. Position the blower near heat-generating equipment such as pumps or heaters to draw naturally warmed ambient air for improved comfort.

🔄 Blower Replacement & Upgrade

Replacing a worn, noisy, or failed blower? The G90-2NN-S is identical to the BL-GB900 model (without heater) and serves as a direct replacement for GB90-2NN-S and GB90-2NJ-B units. Customer reviews confirm reliable performance even after 6-15 years of the original unit’s service life.

🏢 Commercial & Rental Properties

For commercial hot tub installations or holiday rental properties where simplicity and reliability are paramount, the non-heated G90 offers fewer components that can fail while still delivering powerful bubble massage performance.

🛠️ Installation Considerations

⚠️ Professional Installation Required – 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: 3.9 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
• Top Tip: Position near heat-generating equipment (pumps, heaters) to draw warm ambient air naturally
• Avoid cold air intake which will cause cold air injection into the spa water
• Compact dimensions (280 x 190 x 180mm) suit most equipment bays

Plumbing Requirements

• Connection: 1.5″ BSP threaded male with 32mm union (included)
• 1″ Connection: Use PL-10412 fitting if 1-inch connection required (sold separately)
• 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

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

Check Valve Reminder

If your previous blower failed due to water ingress, inspect and replace your check valve before installing the new G90. Water damage is the most common cause of blower failure and is preventable with a properly functioning check valve.

📥 Downloads & Resources

📄 Genesis Blower Installation Manual – Download PDF

🏆 Why Choose the Genesis G90 900W Non-Heated Blower?

✅ Proven Performance – 1.21 HP output delivers powerful bubble massage for medium to large hot tubs

✅ Lower Running Costs – 3.9A current draw is more efficient than heated alternatives, reducing electrical consumption

✅ Simplicity & Reliability – Fewer components than heated models means less that can go wrong

✅ OEM Quality – Original equipment for Spaform, Catalina, and Aegean spa installations

✅ Long Service Life – Customer reviews confirm 6-15+ years of reliable operation before replacement needed

✅ Intelligent Protection – Automatic air dry-out and thermal motor protection safeguard your investment

🚚 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 choosing between heated and non-heated models for your specific needs

✅ 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 compatibility questions

✅ 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 G90 900W Non-Heated Air Blower delivers powerful 1.21 HP performance for medium to large hot tubs without the added complexity of an integrated heating element. Ideal for Spaform, Catalina, and Aegean spas – or any installation where existing heating systems provide adequate warmth – this efficient blower draws just 3.9 Amps while delivering invigorating bubble massage through 8-15 air jets. With IPX5 waterproofing, European safety certifications, and proven long-term reliability, the G90-2NN-S is the smart choice for spa owners seeking powerful performance with lower running costs. Order today and enjoy years of trouble-free bubble therapy.

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.