🌀 HydroAir Balboa Genesis Air Blower – G70-2NN-S (700W, Non-Heated, Electronic On/Off)

Reliable 700W electronic air blower with spa pack integration – delivering powerful bubble massage for whirlpool baths and hot tubs

ℹ️ Product Overview

The HydroAir Balboa Genesis G70-2NN-S is a dependable 700W air blower designed for seamless integration with electronic spa control systems. Housed in the instantly recognisable bright blue polypropylene casing, this single-speed blower delivers consistent, powerful airflow through straightforward electronic on/off control.

Unlike pneumatic models that require air buttons, the G70-2NN-S connects directly to spa packs, control systems, or simple electrical switches, making it the preferred choice for modern hot tub installations with integrated control panels. The electronic control also means this model is compatible with external variable speed controllers, offering upgrade potential without replacing the blower itself.

While classified as non-heated, strategic positioning near pumps or heaters allows the unit to draw ambient warmth from surrounding components, ensuring comfortable air temperatures during operation. The rotatable outlet union simplifies plumbing alignment, reducing installation time and accommodating tight spaces beneath whirlpool baths.

Manufactured by HydroAir, a division of Balboa Water Group, this blower meets European norms EN60335-1 with focus on EN60335-2-60 – the stringent safety standards required for electrical equipment in wet environments. With robust airflow capable of servicing up to approximately 15 air jets, the G70-2NN-S delivers the performance domestic spa installations demand.

🌟 Key Features

✅ Electronic On/Off Control – Designed for direct integration with spa packs, control systems, or simple electrical switches – ideal for modern automated spa setups

✅ External Speed Controller Compatible – While operating as single-speed by default, this blower can be connected to external variable speed controllers for enhanced functionality

✅ 700W Motor Performance – Delivers approximately 2,000 litres per minute of airflow at up to 2.1m head pressure, capable of servicing up to ~15 air jets

✅ Rotatable Outlet Union Included – The 1.5″ BSP × 32mm threaded outlet union rotates for flexible plumbing alignment, minimising installation complexity

✅ Low Current Draw – Operating at approximately 3.0A, this blower integrates easily with spa pack relay outputs without overloading circuits

✅ Thermal Overload Protection – Built-in motor protection automatically shuts down if overheating occurs, safeguarding the blower and extending service life

✅ IPX5 Moisture-Resistant Housing – Commercial-grade blue polypropylene enclosure protects internal components in humid spa environments

✅ Compact Dimensions – At just 276 × 175 × 180mm, the Genesis fits comfortably beneath most whirlpool baths and spa cabinets

✅ European Safety Certified – Manufactured in compliance with EN60335-1 and EN60335-2-60 electrical safety standards

✅ Three-Point Rubber Foot Mounting – Integrated rubber feet reduce vibration transmission and provide secure mounting points

📊 Technical Specifications

Specification	Details
Model Number (MPN)	G70-2NN-S (also known as GB70-2NN-S)
Power Rating	700W
Current Draw	~3.0A
Voltage / Frequency	230-240V / 50Hz
Control Method	Electronic on/off (single-speed)
Heating Element	Non-heated (draws ambient air)
Airflow Rate	~2,000 litres/min
Maximum Head Pressure	~2.1m H₂O
Jet Capacity	Up to approximately 15 air jets
Outlet Connection	Rotatable 1.5″ BSP × 32mm union (included)
Supply Cable	1m bare-end cable
Dimensions (L × W × H)	276 × 175 × 180mm
Housing Material	Blue polypropylene
Protection Rating	IPX5 moisture resistant
Variable Speed Compatible	Yes (with external controller)
Safety Standards	EN60335-1, EN60335-2-60
Usage Rating	Domestic spa equipment

🏢 Real World Applications

🛁 Spa Pack Controlled Hot Tubs The G70-2NN-S is purpose-built for hot tubs with integrated control systems. The electronic on/off design allows spa packs to activate the blower automatically via relay outputs, enabling features like timed bubble cycles, combination pump/blower programmes, and touchpad-controlled operation.

💆 Whirlpool Bath Installations For whirlpool baths connected to bathroom control panels or simple wall switches, this blower provides reliable bubble action without pneumatic tubing. The electronic control integrates cleanly with standard electrical installations, appealing to bathroom designers and installers.

🔌 Variable Speed System Upgrades Owners seeking variable speed functionality can pair this blower with an external speed controller. This approach provides upgrade flexibility – start with basic on/off operation and add variable control later without replacing the blower unit.

🔄 Direct Replacement for Failed Blowers When replacing older electronic blowers, the G70-2NN-S offers straightforward compatibility. The standard 1.5″ BSP connection, compact dimensions, and electronic control type match most existing installations, minimising retrofit complexity.

🏠 New Build Residential Spas Spa builders appreciate the integration flexibility of electronic control blowers. Whether connecting to sophisticated control systems or basic relay switches, the G70-2NN-S adapts to the installation requirements while delivering consistent performance.

♨️ Multi-Jet Air Systems With capacity for up to approximately 15 air jets, this blower suits medium-sized installations requiring robust airflow distribution. The 2,000 L/min output ensures even bubble delivery across multiple jet positions.

🔧 Installation Considerations

⚠️ Professional installation by a qualified electrician is essential

Electrical Requirements:

• Supply voltage: 230-240V AC, 50Hz
• Current draw: Approximately 3.0A
• Cable: 1m bare-end supply cord provided
• Wire colours comply with EN60335-2-60 (Brown = Live, Blue = Neutral, Yellow/Green = Earth for Class I units)
• Installation must include a fixed wiring switch with minimum 3mm contact separation in each pole
• Suitable for connection to spa pack relay outputs or independent switches

Control Integration:

• Connects to electronic spa packs via relay output
• Compatible with simple on/off switches for standalone operation
• Can be paired with external variable speed controllers for enhanced functionality
• If connected to external variable speed control, ensure blower runs at high speed for minimum 5 seconds at startup

Mounting Position:

• Suitable for mounting below whirlpools and spas
• Secure using three screws through the integrated rubber feet
• Must not be accessible to bathers without use of tools
• Position must be protected from flooding
• Ensure location allows future access for inspection and maintenance

Ventilation Requirements:

• Install in a well-ventilated location
• Avoid cold air intake as this causes cold air injection into the bath water
• For warmer air output, position near pumps, heaters, or other warm spa components

Plumbing Connections:

• Outlet: Rotatable 1.5″ BSP × 32mm union (included)

⚠️ Critical Water Protection: Check valve installation is strongly advised to prevent water ingress and reduce gurgling noises. Install either a double air loop with one check valve, OR two check valves, positioned above maximum water level.

Thermal Protection Note: If the thermal protection activates, the blower will not restart until power is disconnected and reconnected AFTER the unit has cooled to room temperature.

Maintenance: No special maintenance required. The intake filter can be cleaned by removing the two screws at the rear of the blower to access the base.

📁 Downloads & Resources

📄 Genesis Blower Installation Manual – Manual-BGB-500.pdf

📄 Genesis Blower Technical Data Sheet – TechSheet-BGB-500.pdf

💪 Why Choose the Genesis G70-2NN-S Air Blower

✅ Seamless Spa Pack Integration – Electronic on/off control connects directly to modern spa control systems, enabling automated operation and touchpad control

✅ Upgrade Path Available – Compatible with external variable speed controllers, allowing enhanced functionality without replacing the blower

✅ Proven Reliability – The Genesis range has earned its reputation as the obvious choice for whirlpools and spas through consistent performance across thousands of installations

✅ Robust Jet Capacity – Powerful enough to service up to approximately 15 air jets, meeting the demands of medium-sized spa installations

✅ Installation Flexibility – Rotatable outlet union and compact dimensions accommodate challenging installation spaces common in retrofit situations

✅ Trusted Balboa Quality – Manufactured by HydroAir, a division of Balboa Water Group, with decades of proven excellence in spa component manufacturing

⭐ Why Buy From Parts4Tubs?

✅ UK-based specialist supplier with comprehensive spa component expertise

✅ Technical advice available from knowledgeable staff who understand control system integration

✅ Fast UK delivery to keep your installation project on schedule

✅ Competitive pricing on genuine manufacturer parts

✅ Authentic HydroAir/Balboa components – guaranteed genuine

✅ Dedicated customer support throughout your purchase journey

✅ Secure online ordering with trusted payment processing

✅ Hassle-free returns policy for complete confidence

✅ Summary

The HydroAir Balboa Genesis G70-2NN-S combines powerful 700W performance with electronic control integration, making it the ideal choice for spa pack controlled hot tubs and modern whirlpool installations. Delivering approximately 2,000 L/min airflow with capacity for up to 15 jets, this blower provides robust bubble massage while offering compatibility with external speed controllers for future upgrades. With its rotatable outlet union, IPX5-rated housing, and trusted Balboa engineering, the G70-2NN-S delivers reliable performance for years of enjoyable spa use. Order today and experience the quality that has made Genesis the industry’s preferred air blower range.