🌊 I-PAC 50 Inverter Pool Heat Pump (IPT50BLY) – 60kW Ultra-Efficient WiFi Pool Heating System
Transform your pool experience with the I-PAC 50 – the ultimate inverter heat pump combining exceptional efficiency, whisper-quiet operation, and intelligent WiFi control. Designed for medium to large domestic pools and small commercial applications, this cutting-edge system delivers up to 60kW of heating power with an outstanding average COP of 10.5, making it twice as efficient as traditional on/off heat pumps.
Perfect for pools up to 150m³ | 5-Year Manufacturer Warranty | WiFi & BMS Connectivity | Ultra-Quiet Whisper Mode
💰 Exceptional Energy Savings
With an average Coefficient of Performance (COP) of 10.5, the I-PAC 50 generates 10.5kW of heat for every 1kW of electricity consumed. This translates to running costs that are up to 50% lower than conventional pool heaters, saving you hundreds of pounds annually.
🔇 Whisper-Quiet Operation
Operating at just 33-41 dB(A) at 10 meters in Whisper Mode – quieter than a typical conversation – this heat pump won’t disturb your peaceful poolside relaxation or your neighbors. It’s 10-12 dB(A) quieter than standard on/off heat pumps.
📱 Smart WiFi Control
Control your pool temperature from anywhere using the PoolTherm app (available on iOS and Android). Monitor performance, adjust settings, and schedule heating times – all from your smartphone.
🌡️ Precise Temperature Control
Advanced inverter technology provides stepless speed modulation, maintaining your exact desired temperature without the constant on/off cycling of traditional heaters. This means consistent comfort and reduced wear on components.
❄️ Year-Round Versatility
Multifunction operation allows heating, cooling, or combined heat/cool modes, making this system adaptable for all seasons and climates. Heat your pool in spring and autumn, cool it during scorching summer days.
🏊 Pool Sizing & Heat-Up Time Guide
Recommended Pool Capacity
| Pool Volume | Pool Dimensions (Approx.) | Suitability |
|---|---|---|
| 40-60m³ | 8m x 4m x 1.5m | ✅ Excellent |
| 60-90m³ | 10m x 5m x 1.5m | ✅ Excellent |
| 90-120m³ | 12m x 5m x 1.5m | ✅ Excellent |
| 120-150m³ | 15m x 6m x 1.5m | ✅ Good |
| 150m³+ | Larger pools | ⚠️ Consider I-PAC 100 |
Estimated Heat-Up Times
Based on 60.2kW heating capacity at optimal conditions (27°C air temp, 80% humidity)
| Pool Volume | 5°C Rise | 10°C Rise | 15°C Rise |
|---|---|---|---|
| 50m³ | 4.8 hours | 9.6 hours | 14.4 hours |
| 75m³ | 7.2 hours | 14.4 hours | 21.6 hours |
| 100m³ | 9.6 hours | 19.2 hours | 28.8 hours |
| 125m³ | 12 hours | 24 hours | 36 hours |
| 150m³ | 14.4 hours | 28.8 hours | 43.2 hours |
Formula Used: Time (hours) = (Pool Volume × Temperature Rise × 1.16) ÷ Heat Pump kW
⚠️ Important Notes:
- These are estimates based on optimal conditions (27°C air, 80% RH)
- Actual performance varies with air temperature, humidity, wind, and pool insulation
- At 15°C air temperature, heating capacity reduces to approximately 40kW
- Use pool covers to significantly reduce heat-up times and running costs
- Initial heat-up takes longer than maintaining temperature
Performance Across Different Conditions
| Air Temperature | Humidity | Heating Output | Average COP |
|---|---|---|---|
| 27°C | 80% RH | 60.2 kW | 10.5 |
| 15°C | 70% RH | 40.1 kW | 4.0 |
| -7°C | – | Reduced | Lower |
| 35°C | 70% RH | 26.8 kW (cooling) | – |
💡 Pro Tip: The I-PAC 50 excels in UK spring and autumn conditions, providing optimal efficiency when you need it most to extend your swimming season.
🎯 Key Features & Benefits
Advanced Heating Technology
⚡ Stepless DC Inverter Compressor
Unlike traditional on/off heat pumps that constantly cycle, the inverter compressor modulates speed continuously from 0-100%, using only the precise amount of energy needed. This delivers superior efficiency, quieter operation, and longer equipment life.
🛡️ Premium Titanium Heat Exchanger
Titanium construction provides exceptional corrosion resistance against chlorinated pool water and harsh chemicals, ensuring decades of reliable performance without degradation.
🔄 Boost & Whisper Dual-Mode Operation
- Boost Mode: Maximum power for rapid heat-up when you need it
- Whisper Mode: Ultra-quiet energy-efficient operation for day-to-day running
🌦️ All-Weather Performance
Operates reliably in temperatures from -7°C to 43°C, providing heating capability even during cool UK spring and autumn weather when traditional heaters struggle.
Smart Connectivity & Control
📲 PoolTherm WiFi App Control
- Monitor real-time water and air temperatures
- Adjust target temperature remotely
- Set heating schedules to match your routine
- Receive alerts and performance notifications
- View energy consumption data
- Available free on iOS and Android
🏢 BMS (Building Management System) Integration
Perfect for small commercial installations, hotels, spas, and wellness centers requiring integration with centralized control systems.
Built for Reliability
⚙️ Comprehensive Circuit Protection
Multiple safety systems protect against electrical faults, refrigerant issues, and operational anomalies, ensuring long-term reliability.
🔌 Soft Start-Up Technology
Reduces power surge during startup, protecting your electrical system and extending compressor life. Particularly important for properties with limited electrical capacity.
☔ Weather-Proof Construction
Robust aluminum alloy casing designed for year-round outdoor installation in the UK climate. Corrosion-resistant and UV-stable.
🔧 High-Efficiency Axial Fans
Optimized airflow design maximizes heat exchange efficiency while minimizing noise, delivering the best balance of performance and acoustics.
📄 Downloads & Documentation
📥 Product Information & Technical Specifications
I-PAC 50 & 100 Heat Pumps Brochure (opens in new tab)
Complete technical specifications, performance data across multiple operating conditions, dimensional drawings, sound level charts, and application guidelines for both I-PAC 50 and 100 models. Essential reading for installers and pool professionals.
📊 Complete Technical Specifications
Performance Specifications
| Specification | Value |
|---|---|
| Model Number | IPT50BLY (I-PAC 50) |
| Heat Pump Type | Inverter (Stepless DC) |
| Application | Large domestic & small commercial pools |
| Recommended Pool Volume | 40-150m³ |
Heating Performance (Air 27°C, 80% RH, Water 27°C)
| Specification | Value |
|---|---|
| Heating Capacity | 60.2 kW |
| Average COP at 50% Speed | 10.5 |
| Energy Efficiency Rating | Exceptional |
Heating Performance (Air 15°C, 70% RH, Water 26°C)
| Specification | Value |
|---|---|
| Heating Capacity | 40.1 kW |
| Average COP at 50% Speed | 4.0 |
Cooling Performance (Air 35°C, 70% RH, Water 28°C)
| Specification | Value |
|---|---|
| Cooling Capacity | 26.8 kW |
Electrical Specifications
| Specification | Value |
|---|---|
| Power Supply | 400V / 3-Phase / 50-60Hz |
| Rated Input Power | 2.10 – 8.18 kW |
| Rated Current Input | 3.05 – 11.9 A |
| Maximum Input Current | 19 A |
Hydraulic Specifications
| Specification | Value |
|---|---|
| Required Water Flow Rate | 20-25 m³/h |
| Water Connection Size | 75 mm |
| Heat Exchanger Material | Titanium |
Environmental & Operating Conditions
| Specification | Value |
|---|---|
| Operating Air Temperature Range | -7°C to 43°C |
| Refrigerant Type | R410a |
| Refrigerant Weight | 8 kg |
Acoustics
| Specification | Value |
|---|---|
| Sound Level @ 1 meter | 53-61 dB(A) |
| Sound Level @ 10 meters | 33-41 dB(A) |
| Noise Reduction vs On/Off Units | 10-12 dB(A) in Whisper Mode |
Physical Specifications
| Specification | Value |
|---|---|
| Dimensions (L × W × H) | 1000mm × 1110mm × 1260mm |
| Weight | 230 kg |
| Casing Material | Aluminum Alloy |
| Construction | Weather-proof for outdoor installation |
Connectivity & Control
| Specification | Value |
|---|---|
| WiFi Module | Built-in |
| Mobile App | PoolTherm (iOS & Android) |
| BMS Connectivity | Yes |
| Operating Modes | Heat / Cool / Heat+Cool / Auto |
Warranty & Compliance
| Specification | Value |
|---|---|
| Manufacturer Warranty | 5 Years (on-site parts & labour) |
| Design & Manufacturing | Dantherm UK (Calorex) |
| Frequency Compatibility | 50/60Hz (Global use) |
💡 Running Cost Comparison
Annual Running Costs Estimate
Based on heating a 75m³ pool from 18°C to 28°C, May-September (UK climate)
| Heating Method | Annual Energy Use | Cost @ 24p/kWh | vs I-PAC 50 |
|---|---|---|---|
| I-PAC 50 Inverter | 2,400 kWh | £576 | ✅ Baseline |
| Traditional Heat Pump (COP 5) | 5,040 kWh | £1,210 | ❌ +£634 |
| Electric Heater (COP 1) | 25,200 kWh | £6,048 | ❌ +£5,472 |
| Gas Heater (80% eff) | 31,500 kWh | £1,575 | ❌ +£999 |
💰 Save up to £5,472 annually compared to electric resistance heating!
Note: Costs are estimates and will vary based on pool size, usage, ambient conditions, electricity/gas tariffs, and pool insulation. Pool covers can reduce costs by 50-70%.
🔧 Installation Requirements
Space & Clearances
Minimum Clearance Requirements:
- Front (air intake): 2 meters clear space
- Top (air exhaust): 2 meters clear space
- Sides: 500mm each side for service access
- Rear: 300mm for electrical connections
Placement Considerations:
- Install on firm, level base (concrete pad recommended)
- Position to minimize noise impact on living areas
- Ensure good air circulation – avoid enclosed spaces
- Protect from prevailing winds if possible
- Consider noise direction toward neighbors
- Keep away from air conditioning units or heat sources
Electrical Requirements
⚠️ Professional Installation Required
- 400V 3-phase electrical supply required
- Maximum draw: 19 Amps
- Dedicated circuit with appropriate MCB protection
- RCD protection recommended
- Soft-start technology reduces surge current
- Must comply with BS 7671 wiring regulations
- Registered electrician installation recommended
Plumbing Integration
- 75mm water connections (PVC or equivalent)
- Required flow rate: 20-25 m³/h
- Install after pool filter before sanitization system
- Include isolation valves for servicing
- Non-return valve recommended
- Pressure gauge installation advised
- Bypass kit recommended for system flexibility
WiFi & BMS Setup
- Standard 2.4GHz WiFi network required
- Download PoolTherm app before installation
- BMS integration requires compatible system
- Professional setup recommended for BMS integration
🛠️ Maintenance & Care
Monthly Tasks (5 minutes)
✅ Visually inspect unit for debris or obstructions
✅ Check water flow rate and pressure
✅ Clean or replace air filters
✅ Verify WiFi connectivity and app functionality
✅ Check for unusual noises or vibrations
Seasonal Tasks (30 minutes)
✅ Thoroughly clean evaporator coil
✅ Inspect fan blades for damage
✅ Check all electrical connections
✅ Verify water chemistry is within range (pH 7.2-7.8)
✅ Test all operating modes
✅ Update firmware if available
Annual Professional Service
✅ Refrigerant level and pressure check
✅ Compressor performance testing
✅ Heat exchanger inspection and cleaning
✅ Electrical system comprehensive testing
✅ Calibration of temperature sensors
✅ Warranty validation service
💡 Maintenance Tip: Keep the area around the unit clear of leaves, grass clippings, and debris. Clean filters monthly during heavy use periods for optimal efficiency.
❓ Frequently Asked Questions
General Questions
What size pool is the I-PAC 50 suitable for?
The I-PAC 50 is ideal for pools between 40-150m³ (approximately 9,000-33,000 gallons). This typically covers domestic pools up to 15m × 6m × 1.5m deep, as well as small commercial installations like hotel pools, therapy pools, or wellness center pools. For pools over 150m³, consider the I-PAC 100 model.
How much does it cost to run compared to my current heater?
With an average COP of 10.5, the I-PAC 50 is approximately 2-3 times more efficient than traditional heat pumps and up to 10 times more efficient than electric resistance heaters. Typical running costs for a 75m³ pool throughout the UK swimming season are around £500-700 annually, compared to £1,200+ for older heat pumps or £6,000+ for electric heaters.
How long does it take to heat my pool?
Heat-up time depends on pool volume, desired temperature rise, and ambient conditions. As a guide, at optimal conditions (27°C air temperature), the I-PAC 50 can raise a 75m³ pool temperature by 10°C in approximately 14-15 hours. In cooler spring/autumn conditions (15°C air), this extends to 21-22 hours. Using a pool cover can reduce heat-up time by 40-50%.
Is it really that quiet? How loud is “whisper mode”?
Yes! In Whisper Mode, the I-PAC 50 operates at just 33-41 dB(A) at 10 meters – comparable to a quiet library or soft whisper. This is 10-12 dB(A) quieter than traditional on/off heat pumps. At 1 meter, it measures 53-61 dB(A), similar to normal conversation volume. Neighbors and poolside relaxation won’t be disturbed.
Can I control it from my phone?
Absolutely! The I-PAC 50 includes a built-in WiFi module and works with the free PoolTherm app (iOS and Android). You can monitor water temperature, adjust target settings, set heating schedules, view energy consumption, and receive alerts – all from anywhere with internet connection.
Technical & Performance
What’s the difference between inverter and on/off heat pumps?
Traditional on/off heat pumps run at full power until the target temperature is reached, then shut off completely, cycling on/off repeatedly. This wastes energy, creates temperature fluctuations, and generates noise and electrical surges. Inverter heat pumps like the I-PAC 50 use variable-speed compressors that modulate from 0-100%, providing exactly the heat needed at any moment. This delivers superior efficiency, precise temperature control, quieter operation, and longer equipment life.
Will it work in UK winter conditions?
Yes, the I-PAC 50 operates in temperatures from -7°C to 43°C. However, heating efficiency decreases as air temperature drops. At 27°C ambient, output is 60.2kW with COP 10.5. At 15°C ambient, output reduces to 40.1kW with COP 4.0. For year-round pool heating in UK winter, you may need supplementary heating or should consider a larger model. Most UK pools operate May-September when the I-PAC 50 performs excellently.
What’s the benefit of heating AND cooling capability?
UK pools rarely need cooling, but the multifunction capability is valuable for: (1) Cooling water during unusually hot summers when temperatures exceed 30°C, (2) Therapy pools where precise temperature control below ambient is needed, (3) Commercial installations in warmer climates. You can set the unit to heat-only (standard UK setting), cool-only, or automatic heat/cool.
How does the titanium heat exchanger benefit me?
Titanium is exceptionally corrosion-resistant compared to copper or stainless steel. Pool water contains chlorine, salt, and various chemicals that corrode metal over time. Titanium resists this completely, ensuring decades of reliable operation without efficiency loss, leaks, or contamination. This makes the I-PAC 50 suitable for traditionally chlorinated pools, salt-chlorinated pools, and even seawater pools.
Installation & Requirements
Do I need 3-phase power?
Yes, the I-PAC 50 requires 400V 3-phase electrical supply. Most domestic properties in the UK have single-phase supply, so you may need an upgrade from your electricity provider. However, many larger properties, farms, and all commercial properties already have 3-phase available. Contact your electricity provider to confirm availability and upgrade costs (typically £1,000-3,000 for domestic 3-phase installation).
Can I install it myself?
Professional installation is strongly recommended and typically required to maintain warranty validity. Installation involves 3-phase electrical work (which must be performed by a registered electrician), plumbing integration with your pool system, refrigerant handling (requires F-Gas certification), and proper placement for optimal performance. DIY installation risks safety hazards, warranty voidance, and poor performance.
What’s included in the 5-year warranty?
The I-PAC 50 includes a comprehensive 5-year manufacturer warranty covering parts AND labour (on-site service). This covers manufacturing defects, component failures, and performance issues under normal operating conditions. The warranty requires professional installation and annual servicing by a qualified technician. This is one of the best warranties in the pool heating industry.
How much space do I need around the unit?
Minimum clearances: 2 meters in front (air intake), 2 meters above (air exhaust), 500mm each side, and 300mm rear. Total footprint is approximately 3m × 3m including clearances. The unit itself measures 1000mm × 1110mm × 1260mm (L×W×H) and weighs 230kg, requiring a solid, level base.
Comparison & Selection
Should I choose the I-PAC 50 or I-PAC 100?
Choose the I-PAC 50 for pools 40-150m³ and the I-PAC 100 for pools 100-300m³. If your pool is 120-150m³ and you have a budget constraint, the I-PAC 50 will work but with longer heat-up times. If you want faster heating, better performance in cold conditions, or your pool is at the upper end of the range, upgrade to the I-PAC 100. Consider your typical usage pattern and desired heat-up speed.
How does this compare to solar pool heating?
Solar heating is free to run but depends entirely on sunshine, takes up significant roof space, and struggles in UK climate. The I-PAC 50 works day or night, rain or shine, providing reliable on-demand heating. Many pool owners combine solar heating (when available) with a heat pump (as backup), using the heat pump’s smart controls to activate only when solar isn’t sufficient. This provides the best of both worlds.
🏆 Why Buy From Parts4Tubs?
✅ Authorized Certikin Dealer – Genuine products with full manufacturer warranty
✅ Expert Technical Support – Our team knows pool heating inside and out
✅ Competitive Pricing – Best value on premium pool equipment
✅ Fast UK Delivery – Quick dispatch from UK stock
✅ Installation Support – We can recommend qualified installers in your area
📞 Need Help Choosing?
Not sure if the I-PAC 50 is right for your pool? Contact our expert team for personalized advice:
- Pool volume calculation assistance
- Heat-up time estimates for your specific situation
- Electrical requirements clarification
- Installation planning guidance
- Comparison with alternative models
Get in touch today and let us help you find the perfect heating solution for your pool!
🎁 Package Includes
✅ I-PAC 50 Heat Pump Unit (IPT50BLY)
✅ Built-in WiFi Module (pre-installed)
✅ User Manual & Installation Guide
✅ PoolTherm App Access (free download)
✅ 5-Year Manufacturer Warranty
✅ Technical Support Access
Not Included (available separately):
- Installation kit (plumbing connections, isolation valves)
- Electrical installation materials
- Concrete base/mounting pad
- Pool cover (highly recommended for efficiency)
🌟 Investment in Comfort & Savings
The I-PAC 50 represents a smart investment in your pool’s usability and your long-term energy costs. With typical energy savings of £600-1,000 annually compared to older heating systems, the I-PAC 50 often pays for itself in 3-5 years while providing decades of reliable service.
Key Investment Benefits:
- ⏱️ Extend your swimming season by 4-6 months
- 💰 Reduce annual heating costs by 50-70%
- 🏡 Increase property value with modern, efficient equipment
- 🌍 Reduce carbon footprint significantly
- 😌 Enjoy consistent comfort with precise temperature control
- 🔇 Preserve peace and quiet with ultra-silent operation
📋 Final Specifications Summary
Model: I-PAC 50 (IPT50BLY)
Heating Capacity: 60.2kW @ 27°C / 40.1kW @ 15°C
Average COP: 10.5 @ 27°C / 4.0 @ 15°C
Power Supply: 400V 3-Phase 50-60Hz
Pool Coverage: 40-150m³ (ideal 60-120m³)
Noise Level: 33-41 dB(A) @ 10m (Whisper Mode)
Connectivity: WiFi + BMS
Heat Exchanger: Titanium
Warranty: 5 Years Parts & Labour
Dimensions: 1000 × 1110 × 1260mm
Weight: 230kg
🛒 Order your I-PAC 50 today and transform your pool experience with cutting-edge inverter technology, exceptional efficiency, and intelligent control.



