InverX Vertical 21.5kW 1 Phase Pool Heat Pump – IXR56V (IXR50V) 🌊

Transform your pool experience with the revolutionary InverX Vertical 21.5kW heat pump – where powerful heating meets whisper-quiet operation in a space-saving vertical design. Featuring patented TurboSilence® technology and 120% boost capacity, this premium heat pump heats your large pool 20% faster while consuming less energy than conventional systems. Perfect for properties with limited horizontal space.

🔥 Revolutionary TurboSilence® Technology

The InverX Vertical doesn’t compromise – it delivers both power and silence. The patented TurboSilence® Tech control system perfectly balances inverter compressor control with advanced heat exchange technology to deliver:

Turbo Performance When You Need It

• Operates at 120% capacity during initial heat-up
• Generates 20% more heat than standard full-inverter systems
• Dramatically reduces warm-up times for your pool

Whisper-Quiet Operation

• Runs at average 50% capacity to maintain temperature
• 10 times quieter than traditional on/off heat pumps
• Backward airflow design (air pulled in at sides, expelled at back)
• As quiet as a household refrigerator during normal operation

Intelligent Efficiency

• Dynamically adjusts compressor and fan speed to match demand
• Minimizes energy waste by running only as hard as needed
• Average COP of 11.3 at 50% capacity for season-long efficiency

Why Choose the InverX Vertical? ⭐

✅ Ultra-Quiet TurboSilence® Technology – Up to 10x quieter than conventional heat pumps, operating at refrigerator noise levels

✅ Blazing Fast Heating – 120% boost mode heats your pool 20% faster than standard inverter models

✅ Exceptional Efficiency – COP up to 16.1 means 16.1kW of heat for every 1kW of electricity consumed

✅ Space-Saving Vertical Design – Minimizes ground footprint, perfect for tight installation areas

✅ Smart WiFi Control – Monitor and control from anywhere using your smartphone (iOS & Android)

✅ 3 Intelligent Operating Modes – Choose between Boost (rapid heating), Smart (efficiency), or Silence (ultra-quiet)

✅ Year-Round Performance – Operates in temperatures from -15°C to +43°C

📊 Complete Technical Specifications

Specification	Details
Model	InverX Vertical IXR56V (IXR50V)
Heating Capacity	21.5kW (Standard) / 25.8kW (120% Boost Mode)
Power Supply	1 Phase, 220-240V / 50Hz
COP (Coefficient of Performance)	Up to 16.1 (Air 26°C / Water 26°C / 80% Humidity)
Average COP	11.3 at 50% capacity
Operating Temperature Range	-15°C to +43°C ambient air temperature
Compressor Type	Twin-Rotary Full Inverter (Variable Speed)
Heat Exchanger	Titanium (Corrosion-resistant for chlorine & saltwater)
Refrigerant	R32 (Environmentally friendly, low GWP)
Defrost System	Automatic hot gas defrosting
Fan Type	Variable speed, low-noise design
Control Interface	Intelligent touchscreen with lockable settings
Connectivity	Built-in WiFi module with smartphone app
Operating Modes	3 modes: Boost / Smart / Silence
Design Type	Vertical configuration with hexagon honeycomb structure
Water Connections	50mm (2″) inlet/outlet
Power Start	Soft start (reduced electrical startup requirements)
Protection Features	Low/high pressure, anti-freeze, overheating protection
Suitable For	Large residential pools (60-100m³), small commercial pools
Warranty	3 years comprehensive (UK installations)
SKU	1764396118

💡 Key Features & Benefits

🏆 Patented Hexagon Honeycomb Design

The InverX features an innovative hexagonal heat exchanger pattern inspired by honeycomb structures:

• Maximum Heat Exchange Surface Area – More efficient thermal transfer in less space
• Enhanced Durability – Distributed stress patterns extend component lifespan
• Optimized Airflow – Minimizes resistance while maximizing heat capture
• Distinctive Aesthetic – Modern, premium appearance for your pool area

📱 Smart App Control & WiFi Connectivity

Take complete control of your pool heating from anywhere:

• Remote Monitoring – Check pool temperature and system status in real-time
• Scheduling – Create custom heating schedules to match your usage patterns
• Energy Tracking – Monitor electricity consumption and efficiency metrics
• Maintenance Alerts – Receive notifications for filter cleaning and service needs
• Mode Switching – Change between Boost, Smart, and Silence modes instantly

🎯 Three Intelligent Operating Modes

Boost Mode 🚀

• Runs at 120% capacity for rapid heating
• Perfect for weekend warm-ups or recovering from cold spells
• Heats 20% faster than standard full-inverter systems

Smart Mode 🧠

• Automatically optimizes efficiency based on conditions
• Balances heating speed with energy consumption
• Ideal for everyday pool maintenance during swim season

Silence Mode 🔇

• Prioritizes ultra-quiet operation
• Perfect for evening swimming or noise-sensitive neighborhoods
• Still maintains excellent heating performance

🔒 Lockable Control Panel

Prevent unauthorized temperature changes – essential for:

• Rental properties
• Holiday homes
• Commercial installations
• Households with children

📐 Space-Saving Vertical Design Advantages

Traditional horizontal heat pumps require significant floor space. The InverX Vertical solves this:

✅ Reduced Footprint – Takes up 60-70% less ground area than horizontal equivalents

✅ Flexible Placement – Fits in narrow spaces, against walls, in equipment rooms

✅ Easier Integration – Works in existing equipment areas without major modifications

✅ Professional Appearance – Sleek vertical profile with distinctive hexagonal design

✅ Better Airflow – Elevated air intake reduces debris and improves efficiency

📄 Downloads & Documentation

📄 InverX Complete Specifications Sheet (opens in new tab) Detailed technical specifications for the entire InverX range, including heating capacities, COP ratings, dimensions, electrical requirements, and performance data across different operating conditions.

🌡️ Pool Sizing Guide – Is This Heat Pump Right for You?

The InverX Vertical 21.5kW is designed for large residential pools and small commercial installations:

Pool Volume	Suitability	Expected Performance
40-55m³ (35,000-49,000 litres)	✅ Excellent	Rapid heating, very comfortable running costs
55-70m³ (49,000-62,000 litres)	✅ Ideal Match	Fast heating, optimal efficiency
70-85m³ (62,000-75,000 litres)	✅ Well-Suited	Good heating speed, economical operation
85-100m³ (75,000-88,000 litres)	✅ Suitable	Adequate heating, consider solar cover
Over 100m³	⚠️ Consult Us	May require longer heat-up times or supplementary heating

Pool Volume Calculator:
Length (m) × Width (m) × Average Depth (m) = Volume in m³
Example: 10m × 5m × 1.5m = 75m³

⏱ Estimated Heat-Up Times

Understanding realistic heat-up times helps you plan your pool usage. These calculations use the standard heat pump formula and the IXR56V’s 21.5kW output.

Formula: Time (hours) = (Pool Volume in m³ × Temperature Rise in °C × 1.16) ÷ Heat Pump kW Rating

Heat-Up Time Estimates for Various Pool Sizes

For a 50m³ Pool (44,000 litres):

Temperature Rise	Estimated Time	Typical Scenario
5°C rise (e.g., 20°C to 25°C)	13.5 hours	Spring warm-up
8°C rise (e.g., 18°C to 26°C)	21.5 hours	Early season heating
10°C rise (e.g., 16°C to 26°C)	27 hours	Initial season start
15°C rise (e.g., 12°C to 27°C)	40 hours	Cold start heating

For a 70m³ Pool (62,000 litres):

Temperature Rise	Estimated Time	Typical Scenario
5°C rise (e.g., 20°C to 25°C)	19 hours	Weekend warm-up
8°C rise (e.g., 18°C to 26°C)	30 hours	Spring recovery
10°C rise (e.g., 16°C to 26°C)	38 hours	Early season
15°C rise (e.g., 12°C to 27°C)	56 hours	Cold season start

For a 90m³ Pool (79,500 litres):

Temperature Rise	Estimated Time	Typical Scenario
5°C rise (e.g., 20°C to 25°C)	24 hours	Maintaining temperature
8°C rise (e.g., 18°C to 26°C)	39 hours	Weekly recovery
10°C rise (e.g., 16°C to 26°C)	49 hours	Spring warm-up
15°C rise (e.g., 12°C to 27°C)	73 hours	Full season start

⚠️ Important Disclaimers:

• These are theoretical estimates based on ideal conditions (air temp 26°C, 80% humidity)
• Actual times vary based on ambient air temperature, humidity, wind, pool insulation, and usage
• Using a solar pool cover can reduce heat-up times by 30-50% and significantly lower running costs
• Boost mode (120% capacity) can reduce these times by approximately 17%
• Colder ambient temperatures will increase heating times; warmer temperatures will decrease them

💰 Running Cost Comparison vs. Other Heating Methods

See how much you can save by choosing the InverX Vertical heat pump over traditional heating methods.

Cost to Heat a 70m³ Pool by 10°C (Typical Spring Warm-Up)

Energy Required: 812 kWh (70m³ × 10°C × 1.16)

Heating Method	Efficiency	Energy Used	Cost @ £0.24/kWh	Annual Saving vs. InverX
InverX Heat Pump (COP 11.3)	1130%	72 kWh	£17.28	Baseline
Traditional Heat Pump (COP 5)	500%	162 kWh	£38.88	Save £21.60
Electric Heater	100%	812 kWh	£194.88	Save £177.60
Gas Heater (80% efficient)	80%	1,015 kWh equiv.	£121.80*	Save £104.52
Oil Heater (75% efficient)	75%	1,083 kWh equiv.	£162.45*	Save £145.17

*Gas and oil costs converted to equivalent for comparison

Season-Long Savings (May-September):

• vs. Traditional Heat Pump: £100-200 saved
• vs. Electric Heater: £800-1,200 saved
• vs. Gas Heater: £500-700 saved

💡 The InverX typically pays for itself within 3-5 years through energy savings alone!

🌍 Environmental Benefits

Eco-Friendly R32 Refrigerant

• Low Global Warming Potential (GWP of 675 vs. 2,088 for R410A)
• Zero Ozone Depletion Potential
• More efficient heat transfer properties
• EU-compliant and future-proof

Reduced Carbon Footprint

• Extracts up to 16.1kW of heat from ambient air for every 1kW of electricity
• Uses up to 85% less electricity than direct electric heaters
• Significantly lower CO₂ emissions compared to gas or oil heating
• Contributes to meeting environmental targets

🔧 Installation Requirements & Clearances

Minimum Clearance Requirements:

Front (Air Intake Sides): 600mm (24″) clear space
Rear (Air Discharge): 2,000mm (6.5 feet) to solid obstruction
Top: 1,500mm (5 feet) overhead clearance
Base: Solid, level concrete foundation or reinforced mounting brackets

Electrical Requirements:

• 1 Phase supply: 220-240V / 50Hz
• Dedicated circuit with appropriate RCD protection
• Soft start technology reduces startup current (ideal for limited power supplies)
• Professional installation by qualified electrician required

Plumbing Requirements:

• 50mm (2″) pipe connections (inlet and outlet)
• Bypass kit recommended for winter draining and maintenance
• Water pump required (not included) – minimum 10m head
• Flow rate: Check technical specs for optimal flow range

Location Considerations:

• ✅ Well-ventilated area with good air circulation
• ✅ Protected from direct harsh weather when possible
• ✅ Away from bedroom windows (despite ultra-quiet operation)
• ✅ Accessible for maintenance and filter cleaning
• ❌ Avoid enclosed spaces without ventilation
• ❌ Keep away from heat sources or hot air discharge from other equipment

🔍 Frequently Asked Questions

How quiet is the InverX Vertical really?

The InverX is exceptionally quiet thanks to its TurboSilence® technology. During normal operation (maintaining pool temperature at 50% capacity), it’s comparable to a modern refrigerator – typically around 45-50 dB(A) at 10 meters. This makes it up to 12 dB(A) quieter than standard on/off heat pumps and one of the quietest high-capacity heat pumps available. Even in Boost mode, it remains significantly quieter than conventional systems.

What size pool is this heat pump suitable for?

The 21.5kW InverX Vertical is ideal for pools ranging from 55-85m³ (49,000-75,000 litres). For reference:

• A 10m × 5m × 1.4m pool = 70m³ (62,000 litres) – Perfect match
• A 12m × 5m × 1.4m pool = 84m³ (74,000 litres) – Well-suited
• Larger pools (up to 100m³) can be heated but will take longer. Using a solar cover is highly recommended for pools at the upper end of the range.

How long will it take to heat my pool?

Heat-up time depends on pool volume, desired temperature rise, and ambient conditions. As a general guide for a 70m³ pool:

• 5°C rise: Approximately 19 hours
• 10°C rise: Approximately 38 hours
• 15°C rise: Approximately 56 hours

Using Boost mode (120% capacity) reduces these times by about 17%. A solar pool cover can cut heat-up times by 30-50% and dramatically reduces daily heat loss. See our detailed heat-up tables above for more scenarios.

What’s the difference between the three operating modes?

Boost Mode: Runs at 120% capacity (25.8kW) for maximum heating speed. Use this when you need rapid temperature increases, such as weekend warm-ups or recovering after cold weather. Slightly higher running costs but gets you swimming faster.

Smart Mode: The default automatic mode that intelligently balances heating speed with energy efficiency. Adjusts compressor and fan speed based on temperature difference and ambient conditions. Best for season-long pool maintenance.

Silence Mode: Prioritizes ultra-quiet operation while still providing excellent heating performance. Ideal for evening swimming sessions, early morning heating, or if you have noise-sensitive neighbors. Slightly longer heat-up times but whisper-quiet.

Will this work in winter or cold weather?

Yes! The InverX Vertical operates in ambient temperatures from -15°C to +43°C, making it suitable for year-round use in most UK climates. The automatic hot gas defrost system prevents ice buildup on the coils during cold conditions. However, efficiency decreases as ambient temperature drops (this is true for all air source heat pumps). For winter swimming, we recommend:

• Using a high-quality insulated pool cover
• Running the pump during warmer daylight hours
• Considering supplementary heating for very cold periods
• Consulting us about optimal sizing for extended season use

How much does it cost to run?

Running costs depend on your pool size, desired temperature, local electricity rates, and usage patterns. Using the average UK electricity rate of £0.24/kWh:

To heat a 70m³ pool by 10°C: Approximately £17-18
Daily maintenance (replacing overnight heat loss): £2-5 per day with cover; £8-12 without
Typical swimming season costs (May-Sept): £200-400 with solar cover; £600-900 without

The InverX’s exceptional efficiency (COP up to 16.1) means you’ll spend up to 85% less than electric heaters and 50% less than traditional on/off heat pumps. A solar cover is the single most effective way to reduce running costs.

Do I need WiFi for the heat pump to work?

No, WiFi is optional. The heat pump operates perfectly using the built-in touchscreen control panel. However, WiFi connectivity adds tremendous convenience:

• Control temperature remotely
• Create heating schedules
• Monitor energy usage
• Receive maintenance alerts
• Make adjustments without going outside

The WiFi feature requires connection to your home network. If WiFi isn’t available at your pool location, the heat pump still functions fully via the touchscreen.

What maintenance is required?

The InverX Vertical is designed for low-maintenance operation:

Regular (Every 2-4 Weeks):

• Check and clean debris from air intake grilles
• Inspect for leaves or obstructions around the unit
• Verify water flow and system operation

Seasonal (Spring & Autumn):

• Professional inspection and service recommended
• Check refrigerant levels (by qualified technician)
• Inspect electrical connections
• Clean heat exchanger fins if needed

Winter (If Not Running):

• Drain water from heat exchanger to prevent freeze damage
• Use bypass system to isolate unit
• Cover unit for protection (optional)
• Consider annual professional servicing

The titanium heat exchanger is highly resistant to chlorine and salt corrosion, extending component life.

Is the heat pump compatible with saltwater pools?

Absolutely! The InverX Vertical features a titanium heat exchanger which is specifically designed to resist corrosion from both chlorine and saltwater pools. Titanium is one of the most corrosion-resistant materials available, ensuring long-term reliability in any pool environment. This makes it an excellent choice for:

• Saltwater chlorinator systems
• Traditional chlorine pools
• Mineral pool systems
• Pools with higher chemical concentrations

What warranty is included?

The InverX Vertical comes with a comprehensive 3-year warranty covering all components when installed correctly in the UK. The warranty includes:

• Compressor and refrigeration system
• Electronic controls and PCB boards
• Heat exchanger
• Fan and mechanical components

Important: The warranty does not cover damage from freezing (always drain in winter if not in use), incorrect installation, or damage from external factors. We recommend retaining all packaging for potential warranty returns. Professional installation by qualified technicians is highly recommended to ensure warranty validity.

Can I install this myself or do I need a professional?

While some experienced DIYers can handle the plumbing connections, we strongly recommend professional installation for several reasons:

Electrical Work: Must be completed by a qualified electrician to comply with UK regulations and ensure safety. Improper electrical installation voids warranty.

Refrigeration System: The heat pump contains pressurized refrigerant. Any issues require licensed HVAC technicians.

Optimal Performance: Professional installers ensure correct placement, clearances, water flow rates, and system configuration for maximum efficiency.

Warranty Protection: Incorrect installation can void your warranty.

We can provide installation guidance or connect you with qualified installers in your area. The mechanical installation (plumbing, mounting) is straightforward, but electrical and commissioning should be left to professionals.

How does the vertical design compare to horizontal models?

The vertical configuration offers several distinct advantages:

Space Savings: Takes up 60-70% less ground area – perfect for properties with limited horizontal space or narrow installation areas.

Flexible Placement: Easier to fit against walls, in corners, or in compact equipment rooms.

Better Airflow: Elevated air intake reduces debris accumulation and improves efficiency.

Modern Aesthetic: Sleek vertical profile with distinctive hexagonal design looks more premium.

Performance: Identical heating capacity and efficiency to equivalent horizontal models – no compromises on performance.

The only consideration is that vertical units are taller, so you need adequate overhead clearance (minimum 1.5m). Choose vertical if space is tight; choose horizontal if you have ample ground area but height restrictions.

💼 Perfect Applications

✅ Ideal For:

• Large residential pools (55-85m³ / 49,000-75,000 litres)
• Properties with limited horizontal installation space
• Noise-sensitive residential areas
• Weekend homes requiring rapid heat-up capability
• Pool owners seeking maximum energy efficiency
• Saltwater and chlorine pools
• Year-round swimming enthusiasts
• Rental properties (lockable controls)
• Small commercial installations

⚠️ Consider Alternatives If:

• Your pool is under 40m³ (smaller heat pump more economical)
• Your pool exceeds 100m³ (may need larger unit or multiple units)
• You have severely restricted overhead clearance (consider horizontal model)
• You require three-phase power (see our 3-phase models)

🚚 Delivery & Stock Information

Currently In Stock – Fast 1-3 day UK delivery available

The InverX Vertical IXR56V is held in UK inventory for rapid dispatch. Most orders ship within 1-2 business days on pallet delivery. Shipping is included to most UK mainland addresses.

International Shipping: Available to most countries. Contact us for a shipping quote and delivery timeframe.

📞 Expert Support & Guidance

Have questions about whether the InverX Vertical 21.5kW is right for your pool? Our team of pool heating specialists is here to help:

✅ Pool sizing advice and heat pump selection
✅ Installation guidance and requirements
✅ Technical specifications and performance data
✅ Energy cost calculations for your specific pool
✅ Comparison with alternative models
✅ Installation service referrals
✅ Bypass kit and accessory recommendations

Contact us today for personalized assistance in selecting the perfect heat pump for your needs.

🌟 Why Buy From Parts4Tubs?

✅ Genuine Products – Authorized InverX dealer with full manufacturer warranty
✅ Expert Knowledge – Specialists in hot tub and pool equipment
✅ Competitive Pricing – Best value on premium pool heating solutions
✅ Fast UK Delivery – Most items ship within 1-3 days
✅ Technical Support – Before and after-sales assistance
✅ Quality Guaranteed – All products backed by comprehensive warranties

Transform your swimming experience with the InverX Vertical 21.5kW Heat Pump – powerful heating, whisper-quiet operation, and exceptional efficiency in a space-saving design. Order now and enjoy your pool for more months of the year! 🌊🌡️