🌀 Genesis Air Blower G90 – 1150W Heated | The Industry’s Most Popular Hot Tub Blower

Powerful 1.21 HP heated blower delivering warm, invigorating bubbles – the go-to choice for Spaform, Catalina & Aegean spas 💨

📋 Product Overview

The Genesis G90 Air Blower is the most popular model in the entire Genesis range – and for good reason. This robust 900W motor combined with an integrated 250W heating element delivers 1150W of total power, providing the perfect balance of performance and comfort for medium to large hot tubs. Manufactured by Balboa Water Group under the HydroAir brand, this blower has become the industry standard, found in countless Spaform, Catalina, Aegean, and Arctic Spa installations worldwide.

What makes the G90-2HN-S the preferred choice? It’s the combination of powerful 1.21 HP airflow with warm, comfortable bubble delivery. The integrated 250W heater warms the air before it enters your spa, eliminating the cold air bursts that can disrupt your relaxation. This heated airflow doesn’t cool your water down as quickly as non-heated alternatives, extending your comfortable soak time.

Featuring the distinctive blue polypropylene housing that identifies all Genesis blowers, the G90 combines IPX5 waterproofing, automatic air system dry-out, and European safety certifications (EN60335-1/EN60335-2-60). With electronic on/off control designed for integration with spa packs and control systems, this is the blower that professionals trust and hot tub owners love.

✨ Key Features

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

✅ Integrated 250W Heating Element – Warms airflow before it reaches your body, eliminating cold air bursts and maintaining comfortable water temperature

✅ 1150W Total Power Output – Combined motor and heater provide optimal hydrotherapy performance for demanding applications

✅ 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

⚙️ Technical Specifications

Specification	Details
Model Number	Genesis G90-2HN-S
Motor Power	900W
Heater Power	250W
Total Power Output	1150W
Voltage	230VAC
Frequency	50Hz
Current Draw	5.0 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 (HN) with Heater
Heating Element	Integrated 250W
Safety Certifications	EN60335-1, EN60335-2-60
Manufacturer	Balboa Water Group / HydroAir
Alternative Part Numbers	GB90-2HJ-B (Spaform)

🎯 Real-World Applications

🛁 Medium to Large Hot Tubs

The G90 is specifically designed for medium to large hot tubs requiring substantial airflow combined with heated comfort. With capacity for 8-15 air jets, it delivers an invigorating full-body massage while the 250W heater ensures every bubble feels warm and soothing against your skin.

♨️ Spaform, Catalina & Aegean Spas

This is the original equipment blower for many Spaform models including Atlantic, Esperanto, Fraser, Geneva, Grand Canyon, Milano, Odyssey, Oslo, Platinum, Tango, and Utopia. Also commonly found in Catalina Spas, Aegean Spas, and Arctic Spa installations. The G90-2HN-S is the direct replacement that maintains factory specifications.

💆 Concrete & Bespoke Spa Installations

Professional spa builders choose the G90 for custom concrete spas and bespoke hydrotherapy installations. The combination of robust power, heated airflow, and proven reliability makes it ideal for permanent installations where long-term performance is essential.

🏢 Commercial Wellness Facilities

Hotels, health clubs, and day spas requiring continuous-duty performance rely on the G90’s industrial-grade construction. The heated airflow enhances guest comfort, while the automatic dry-out function reduces maintenance requirements between uses.

🔄 Blower Replacement & Upgrade

If you’re replacing a worn, noisy, or failed blower, the G90-2HN-S is the most popular replacement choice in the industry. Standard dimensions, universal connections, and compatibility with major spa brands make it an ideal upgrade. If your old blower failed due to water ingress, remember to check and replace your check valve before installing the new unit.

🛠️ 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: 5.0 Amps (total with heater)
• 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 to allow adequate heat dissipation from the 250W heating element
• Compact dimensions (280 x 190 x 180mm) suit most equipment bays

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
• If upgrading to heated blower, verify plumbing can handle additional heat

Heater Operation

The integrated 250W heating element warms the airflow before it enters the spa. The heater includes automatic thermal protection that cuts power if air temperature exceeds approximately 50°C, in compliance with EN60335-2-60 requirements. The heater operates when the blower is running to warm the air.

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 Heated Air Blower?

✅ Industry’s Most Popular Model – The G90-2HN-S is the bestselling Genesis blower, trusted by spa manufacturers and installers worldwide

✅ Warm, Comfortable Airflow – Integrated 250W heater eliminates cold air bursts, enhancing comfort and extending your relaxation time

✅ Perfect Power Balance – 1.21 HP output is optimised for medium to large hot tubs without excessive energy consumption

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

✅ Proven Reliability – Built to European safety standards with industrial-grade construction for years of dependable service

✅ Intelligent Protection – Automatic air dry-out, thermal motor protection, and heater thermal cut-out 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 selecting the right blower and accessories for your specific spa brand

✅ 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 1150W Heated Air Blower is the industry’s most popular choice for medium to large hot tubs – and it’s easy to see why. Combining a powerful 1.21 HP motor with an integrated 250W heater, it delivers warm, invigorating bubble massage that enhances every soak. As the original equipment blower for Spaform, Catalina, Aegean, and Arctic Spa installations, the G90-2HN-S offers proven reliability backed by European safety certifications and IPX5 waterproofing. Order today and experience the heated comfort that has made this the bestselling Genesis blower worldwide.

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.