VBIV Summer Season Full Inverter 9kW Swimming Pool Heat Pump 🌊 WiFi Enabled | Ultra-Quiet 28dB Operation
Transform your swimming season with the VBIV Summer Season Full Inverter Heat Pump – the perfect combination of cutting-edge technology, whisper-quiet operation, and exceptional energy efficiency. Designed for pools between 35-60m³, this premium heat pump delivers powerful heating performance while operating at just 28dB(A) – quieter than a whisper, ensuring your poolside relaxation remains undisturbed.
Featuring full inverter technology with PID control, this intelligent heat pump automatically adjusts its heating capacity between 25% and 100% based on your pool’s actual demand. The result? Maximum efficiency with COP values up to 20, significantly lower running costs, and perfectly maintained water temperature without the constant on-off cycling of traditional heat pumps.
With the included WiFi module, you can control and monitor your pool temperature from anywhere using your smartphone – perfect for ensuring your pool is at the ideal temperature before you even get home. The stunning 5-inch full-colour touchscreen provides intuitive local control, while the Mitsubishi inverter compressor ensures reliable, efficient performance season after season.
💡 Key Benefits at a Glance:
Energy Savings & Efficiency – A+ energy label with COP values reaching up to 20 means you can heat your pool for a fraction of the cost of traditional heaters or electric heating
Whisper-Quiet Operation – At just 28dB(A) in ECO Silence mode, this is one of the quietest pool heat pumps available, ensuring peaceful poolside enjoyment
Smart Control Technology – Self-learning PID control automatically optimizes performance, while WiFi connectivity lets you control everything remotely via your smartphone
Premium Components – Genuine Mitsubishi inverter compressor delivers exceptional reliability and longevity, backed by advanced engineering
Year-Round Protection – Includes winter cover to protect your investment during off-season months
Flexible Installation – Compact horizontal design fits easily into most installations with straightforward connection requirements
Why Choose Full Inverter Technology? ⚡
Traditional heat pumps operate in simple on/off cycles – running at full power then shutting down completely. This constant cycling wastes energy, creates temperature fluctuations, increases wear on components, and generates unnecessary noise.
The VBIV Full Inverter difference:
The intelligent inverter technology continuously adjusts compressor and fan speeds to match your pool’s exact heating needs. When your pool needs just a little warmth, the pump runs at 25% capacity. When rapid heating is required, it can deliver 100% output. This smart modulation delivers multiple advantages including dramatically improved energy efficiency with COP values up to 20, virtually silent operation at low speeds, faster initial heat-up when needed at full power, reduced wear and tear extending equipment lifespan, and more stable water temperature with minimal fluctuation.
The self-learning PID controller takes this even further by monitoring your pool’s heat loss patterns and automatically optimizing the heating schedule. Over time, it becomes increasingly efficient at maintaining your desired temperature with minimal energy consumption.
📊 Technical Specifications
| Specification | Details |
|---|---|
| Model | VBIV Summer Season Full Inverter |
| Heating Capacity | 9kW (variable 2.25kW – 9kW) |
| Power Supply | 230V / 1 Phase / 50Hz |
| Recommended Pool Volume | 35-60 m³ |
| Energy Efficiency Rating | A+ |
| COP (Coefficient of Performance) | Up to 20 (varies by conditions) |
| Compressor Type | Mitsubishi Full Inverter |
| Noise Level | 28 dB(A) – ECO Silence mode |
| Control System | PID Self-Learning Controller |
| Display | 5″ Full Colour Touchscreen |
| WiFi Connectivity | ✅ Included (WiFi module) |
| Bus Control | RS485 Compatible |
| Refrigerant Type | R32 (environmentally friendly) |
| Operating Range | Air temp: -5°C to +43°C |
| Water Temperature Range | 15°C to 40°C |
| Defrost System | Automatic Hot Gas Defrost |
| Heat Exchanger | Titanium (corrosion resistant) |
| Water Connections | Ø50mm |
| Protection Rating | IPX4 (water splash protected) |
| Installation Type | Horizontal (ground mounting) |
| Warranty | 2 Years Parts & Labour |
| Included Accessories | WiFi Module, Winter Cover |
🎯 Performance Data & Pool Sizing Guide
Recommended Pool Volumes
| Pool Volume | Suitability | Estimated Performance |
|---|---|---|
| 25-35 m³ | ✅ Excellent | Rapid heating, oversized for efficiency |
| 35-50 m³ | ✅ Ideal | Perfect match, optimal performance |
| 50-60 m³ | ✅ Good | Adequate heating, longer heat-up times |
| 60-75 m³ | ⚠️ Marginal | Slower heating, consider larger model |
| 75+ m³ | ❌ Undersized | Insufficient capacity, upgrade recommended |
Estimated Heat-Up Times ⏱️
The table below provides estimated times to heat your pool from a starting temperature to your desired temperature. These are approximate calculations based on ideal conditions.
Formula Used: Time (hours) = (Pool Volume m³ × Temperature Rise °C × 1.16) ÷ 9kW
| Pool Volume | Temperature Rise | Estimated Heat-Up Time |
|---|---|---|
| 35 m³ | 5°C (20°C → 25°C) | ~22 hours |
| 35 m³ | 8°C (18°C → 26°C) | ~36 hours |
| 45 m³ | 5°C (20°C → 25°C) | ~29 hours |
| 45 m³ | 8°C (18°C → 26°C) | ~46 hours |
| 55 m³ | 5°C (20°C → 25°C) | ~35 hours |
| 55 m³ | 8°C (18°C → 26°C) | ~56 hours |
| 60 m³ | 5°C (20°C → 25°C) | ~39 hours |
| 60 m³ | 8°C (18°C → 26°C) | ~62 hours |
⚠️ Important Disclaimers:
These times are estimates only and assume perfect conditions with no heat loss, unheated pool with outdoor installation, no pool cover used during heating, moderate ambient air temperature around 20°C, and calm weather conditions without wind. Actual heat-up times will vary based on ambient air temperature, wind exposure and weather conditions, whether you use a solar/thermal pool cover, pool insulation and construction type, humidity levels, and your pool’s initial and target temperatures.
💡 Pro Tip: Using a quality solar pool cover can reduce heat-up times by 40-60% and dramatically reduce ongoing heating costs by preventing overnight heat loss. The heat pump works most efficiently when ambient temperatures are above 15°C.
If you receive these documents from the supplier, they can be added to this section for customer convenience.
🌟 Premium Features & Benefits
Smart WiFi Control 📱
Control your pool heating from anywhere using the dedicated smartphone app. Pre-heat your pool before arriving home, monitor energy consumption in real-time, receive alerts and notifications, schedule heating programs for different times/days, and view historical temperature and performance data. The intuitive app interface makes pool temperature management effortless.
Self-Learning PID Technology 🧠
The advanced PID (Proportional-Integral-Derivative) controller is the brain of this heat pump, and it continuously monitors your pool’s temperature, learns your pool’s heat loss characteristics, predicts heating requirements based on weather patterns, automatically adjusts operation for maximum efficiency, and maintains stable temperature with minimal fluctuation. Over time, the system becomes increasingly intelligent, adapting to your specific pool and climate conditions for optimal performance.
Ultra-Quiet ECO Silence Mode 🔇
At just 28dB(A), this heat pump is quieter than a whisper in a library (30dB) or quiet conversation (35dB). The combination of inverter technology (variable speed operation), acoustic insulation, optimized fan blade design, and vibration-damping mounting ensures you won’t even know it’s running – perfect for residential installations where noise could disturb neighbors.
Genuine Mitsubishi Compressor 🏭
The heart of any heat pump is its compressor, and the VBIV features a genuine Mitsubishi inverter compressor – recognized globally as the gold standard for reliability and efficiency. Benefits include proven reliability with millions of units in operation worldwide, exceptional efficiency at all load levels, extended lifespan compared to budget compressors, quieter operation with advanced engineering, and comprehensive parts availability and support network.
Full Inverter Technology ⚙️
Unlike cheap “on-off” inverter units that only control the fan, the VBIV is a full DC inverter heat pump with variable speed control of both compressor and fan motor. This provides up to 75% reduction in running costs vs. traditional heaters, 4x modulation range (25-100% capacity), reduced electrical surge on startup, significantly longer equipment life, and ability to maintain efficiency across wide temperature range.
Titanium Heat Exchanger 💎
The corrosion-resistant titanium heat exchanger ensures long-term reliability even in harsh pool chemical environments including chlorinated pools, saltwater pools, bromine-based sanitization, and high-pH or acidic conditions. Titanium will not corrode, pit, or degrade over time, ensuring decades of reliable service.
All-Weather Operation 🌦️
The VBIV Summer Season model operates reliably across a wide temperature range with effective operation from -5°C to +43°C ambient air temperature, automatic hot-gas defrost system for frost conditions, weatherproof IPX4-rated enclosure, and UV-resistant housing materials for outdoor durability. The included winter cover provides additional protection during off-season storage.
Professional Installation Support 🔧
The horizontal configuration and straightforward connection requirements make professional installation quick and cost-effective with standard Ø50mm water connections, 230V single-phase power (no three-phase required), compact footprint suitable for most installations, comprehensive installation manual included, and RS485 bus control for integration with pool automation systems.
💰 Running Cost Comparison
Understanding the true cost of pool heating helps you appreciate the exceptional value of heat pump technology.
Annual Heating Cost Estimates (50m³ Pool, April-September Season)
| Heating Method | Estimated Annual Cost | Environmental Impact |
|---|---|---|
| VBIV 9kW Heat Pump | £180-£280 | ✅ Very Low (A+ rated) |
| Electric Resistance Heater | £900-£1,400 | ❌ Very High |
| Gas Boiler | £450-£700 | ⚠️ Moderate-High |
| Oil Heater | £650-£950 | ❌ High |
| Solar Only (no backup) | £0 | ✅ Zero (weather dependent) |
Assumptions: Standard UK electricity rates (28p/kWh for heat pump calculation), maintaining 26°C pool temperature, using a solar cover at night, April to September swimming season (approximately 180 days).
💡 Payback Period: Compared to an electric heater, the VBIV heat pump typically pays for itself in energy savings within 2-3 seasons, after which you’re saving £600-£1,100+ every year.
🛠️ Installation Requirements & Guidelines
Clearance Requirements
For optimal performance and to comply with warranty requirements, maintain these minimum clearances:
- Front (Air Intake): 250mm minimum clear space
- Rear (Air Discharge): 1,500mm minimum clear space
- Sides: 300mm minimum each side
- Top: 500mm minimum overhead clearance
Ideal Placement Location
✅ Best Locations:
- Open areas with good air circulation
- Away from prevailing winds when possible
- Firm, level concrete base or paving slabs
- Near to pool equipment area to minimize pipe runs
- Accessible for maintenance and winter covering
❌ Avoid:
- Enclosed spaces or tight corners
- Directly against walls or fences
- Areas where discharged cool air could recirculate back to intake
- Under low eaves or overhangs
- Locations prone to snow drifting
Electrical Requirements
- Power Supply: 230V AC, 50Hz, single phase
- Dedicated Circuit: Yes, required with RCD protection
- Circuit Breaker: 16A Type B or C recommended
- Cable Size: Minimum 2.5mm² (consult qualified electrician)
- Installation: Must be performed by qualified electrician to comply with Part P Building Regulations
Plumbing Connection
- Water Connections: Ø50mm inlet/outlet
- Flow Rate Required: 5-8 m³/hour (1,400-2,200 litres/hour)
- Bypass Installation: Highly recommended for precise flow control
- Non-Return Valve: Required on outlet to prevent back-flow
- Winterization: Drain points required for freeze protection
❓ Frequently Asked Questions
Q: What size pool is this heat pump suitable for?
A: The VBIV 9kW is designed for pools between 35-60m³ (approximately 35,000-60,000 litres). For pools at the lower end of this range (35-45m³), you’ll experience faster heating and excellent efficiency. For pools between 50-60m³, heating will be adequate but slower. Pool volume is calculated as: Length × Width × Average Depth (all in meters).
Q: How much will it cost to run per day/month?
A: Running costs depend on several factors including your target temperature, local climate, and pool insulation. As a guide, during the peak summer season (June-August), you might expect £1-£3 per day to maintain temperature at 26-28°C. During cooler months (April-May, September-October), costs might be £3-£6 per day for initial heating, then £1-£2 daily for maintenance. Using a solar cover overnight can reduce these costs by 40-60%.
Q: Is this suitable for year-round swimming?
A: The VBIV Summer Season model is optimized for swimming from approximately April through October in the UK. While it can operate down to -5°C ambient temperature, efficiency drops significantly below 10°C ambient, making winter operation less economical. For year-round swimming, consider the VBIV All-Season models which are specifically engineered for cold-weather performance.
Q: How quiet is 28dB(A) in real terms?
A: At 28dB(A), this heat pump is extremely quiet – quieter than a typical library (30dB), much quieter than a refrigerator (40dB), and dramatically quieter than conversation (60dB) or traditional heat pumps (50-60dB). At 3 meters distance, it’s barely audible. This makes it ideal for residential areas where neighbor noise could be a concern.
Q: Can I control it with my smartphone?
A: Yes, the included WiFi module allows full remote control via the dedicated smartphone app (iOS and Android). You can monitor and adjust temperature settings, view real-time power consumption, schedule heating programs, receive maintenance alerts and notifications, and check system status from anywhere with internet connection.
Q: How long does it take to heat my pool initially?
A: Initial heat-up time depends on your pool volume, starting temperature, and target temperature. As a rough guide, heating a 45m³ pool from 18°C to 26°C (8°C rise) takes approximately 46 hours of continuous operation in good conditions. Using a solar cover during heating can reduce this by 40%. See the detailed heat-up table above for more scenarios.
Q: Will it work with my saltwater pool?
A: Yes, absolutely. The VBIV features a corrosion-resistant titanium heat exchanger specifically designed to withstand saltwater, chlorinated, bromine-based, and other sanitization systems. Titanium will not corrode or degrade over time, ensuring long-term reliability regardless of your pool chemistry.
Q: What maintenance is required?
A: The VBIV requires minimal maintenance including regular cleaning of the air intake filter (monthly during use), annual inspection of water flow rates and connections, checking refrigerant levels (by qualified technician, typically every 2-3 years), winterization and covering during off-season, and keeping the unit clean and free from debris. The self-diagnostic system will alert you to any issues via the display or app.
Q: Can I install it myself or do I need a professional?
A: While mechanically competent DIY enthusiasts can handle the physical positioning and water connections, we strongly recommend professional installation for several reasons including electrical work MUST be performed by a qualified electrician to comply with regulations, refrigerant systems require F-Gas certified engineers for any work, warranty may require professional installation to remain valid, and proper commissioning ensures optimal performance and efficiency. Most professional installations take 4-6 hours.
Q: What warranty is included?
A: The VBIV includes a comprehensive 2-year parts and labour warranty covering manufacturing defects. The Mitsubishi compressor typically carries an additional extended warranty (check with your supplier). Warranty terms require professional installation and commissioning, regular maintenance as per the manual, operation within specified parameters, and registration within 30 days of installation.
Q: How does COP of 20 compare to other heating methods?
A: COP (Coefficient of Performance) measures how much heat energy you get per unit of electrical energy consumed. A COP of 20 means you get 20kW of heat for every 1kW of electricity used – this is exceptional efficiency. For comparison, electric resistance heaters have a COP of 1.0 (100% efficiency), gas boilers achieve roughly 0.85-0.95 COP, standard heat pumps typically achieve 4-6 COP, while the VBIV achieves up to 20 COP in optimal conditions (average 8-12 COP across a season).
Q: What’s the difference between this and the “All-Season” models?
A: The Summer Season model is optimized for ambient temperatures above 10°C and is most economical for swimming from April through October. The All-Season models feature enhanced cold-weather performance with larger heat exchangers, more powerful compressors designed for low-temperature operation, additional defrost systems, and are designed for year-round swimming (March through November) including colder weather. If you plan to swim only during warm months, the Summer Season offers better value.
🏊 Who Is This Heat Pump Perfect For?
✅ Ideal if you:
- Have a pool between 35-60m³ (most residential pools)
- Want to extend your swimming season from April to October
- Value quiet operation in residential settings
- Desire smart control via smartphone WiFi connectivity
- Want exceptional energy efficiency and low running costs
- Appreciate premium components like Mitsubishi compressors
- Need straightforward single-phase electrical connection
⚠️ Consider alternatives if:
- Your pool exceeds 60m³ (look at 12kW or 17kW models)
- You need year-round winter swimming (choose All-Season models)
- Your pool is below 35m³ (consider a smaller 6kW unit)
- You have three-phase power and want to take advantage of it
- Budget is extremely tight (though long-term savings make this worthwhile)
🔒 Peace of Mind Purchase
What’s Included:
- VBIV 9kW Full Inverter Heat Pump unit
- WiFi control module with smartphone app
- Weather-resistant winter cover
- 5-inch full-colour touchscreen controller
- Comprehensive installation and user manuals
- 2-year parts and labour warranty
Additional Items You May Need (Not Included):
- Bypass plumbing kit for optimal flow control
- Plumbing connections and pipe (Ø50mm)
- Electrical cable and dedicated consumer unit protection
- Concrete base or mounting pads
- Professional installation service
💚 Environmental Benefits
Choosing a heat pump over traditional heating methods makes a significant positive environmental impact including up to 75% reduction in carbon emissions vs electric heaters, uses renewable energy from ambient air, environmentally-friendly R32 refrigerant with low global warming potential, A+ energy efficiency rating, and reduces overall household energy consumption.
Did you know? The VBIV heat pump extracts approximately 8kW of free renewable energy from the air for every 1kW of electricity consumed. Over a typical swimming season, this represents several thousand kWh of free heating energy captured from the environment.
🎁 Upgrade Your Pool Heating Experience Today
The VBIV Summer Season Full Inverter 9kW represents the pinnacle of efficient, quiet, and intelligent pool heating technology. With its combination of genuine Mitsubishi components, self-learning control technology, ultra-quiet operation, and exceptional energy efficiency, it’s the smart choice for discerning pool owners who demand the best.
Stop overpaying for traditional pool heating. The VBIV can reduce your pool heating costs by up to 75% compared to electric heaters while providing superior temperature control and whisper-quiet operation.
Transform your swimming season. Start swimming earlier in spring, continue later into autumn, and enjoy perfectly heated water throughout the summer – all at a fraction of the cost you might expect.
⚠️ Important Notes:
- Prices and specifications subject to change – always confirm current details with supplier
- Installation must be performed by qualified professionals
- Heat-up times and running costs are estimates based on typical conditions
- Actual performance varies with ambient temperature, pool insulation, and usage patterns
- Always follow manufacturer’s installation and operating guidelines


