🌡️ I-PAC+ 22 Side Outlet Inverter Heat Pump (22kW) – All Year Round Pool & Hot Tub Heating

Model: IPT22ALY | Power: 22kW | Phase: 1Ph 230V | Refrigerant: R32 Eco-Friendly

💎 Premium Performance for Demanding Installations

The I-PAC+ 22 represents the pinnacle of all-season pool and hot tub heating technology. Engineered with cutting-edge inverter technology and robust 22kW output, this powerhouse heat pump delivers exceptional performance even in the most challenging weather conditions. Perfect for larger residential pools, commercial hot tubs, or installations requiring uncompromising year-round reliability.

🔥 Unmatched All-Season Capability
Operates efficiently from -10°C to +43°C, ensuring your pool or hot tub remains at the perfect temperature throughout every season. Unlike standard heat pumps that struggle in cold weather, the I-PAC+ 22 maintains impressive performance even during harsh winter conditions.

⚡ Superior Inverter Efficiency
Advanced DC inverter technology delivers an outstanding average COP of 10.3, making it over twice as efficient as traditional on/off heat pumps. This means substantially lower running costs while maintaining superior heating performance.

🔇 Whisper-Quiet Operation
Experience remarkable 9-11 dB(A) sound reduction compared to conventional heat pumps. The dedicated “Whisper Mode” ensures peaceful operation at just 23-34.4 dB(A) at 10 metres – quieter than a library whisper.

🌍 Environmentally Responsible
Utilizes R32 refrigerant with a low Global Warming Potential (GWP) of just 675, ensuring F-Gas compliance while delivering superior cold-weather performance compared to older refrigerants.

✨ Advanced Features That Set This Heat Pump Apart

🎯 Precision Temperature Control

Dual Operating Modes for Every Situation:

Boost Mode – Maximum power output (20-100% capacity)

• Fastest heating for quick pool start-up
• Ideal for initial heating or rapid temperature recovery
• Intelligent optimization for maximum efficiency
• Perfect for getting your pool ready for weekend use

Whisper Mode – Ultra-quiet operation (20-80% capacity)

• 3 dB(A) quieter than Boost mode
• Maintains perfect temperature without disturbing neighbors
• Ideal for overnight operation
• Energy-optimized for day-to-day use

📱 Smart WiFi Connectivity

Take complete control from anywhere with built-in WiFi functionality:

✅ Remote Temperature Adjustment – Change settings from your smartphone or tablet
✅ Real-Time Performance Monitoring – Track energy usage and water temperature
✅ Scheduling Capabilities – Program heating times to match your routine
✅ Instant Notifications – Receive alerts if attention is needed
✅ Pre-Heat Before Arrival – Ensure your hot tub is ready when you are

Perfect for commercial installations or anyone who wants their pool ready without being there

🔄 Versatile Multi-Function Operation

Adapt to any season with three operating modes:

🔥 Heat Only – Traditional heating for pools and hot tubs
❄️ Cool Only – Reduce water temperature during hot summer days
🔄 Heat/Cool (Auto) – Automatically maintains perfect temperature year-round

This flexibility ensures optimal water temperature regardless of weather conditions or seasonal changes.

🛡️ Built for Longevity

Premium Aluminium Alloy Construction
Weather-resistant casing engineered to withstand the harshest UK climate conditions, ensuring reliable operation year after year.

Titanium Twisted Heat Exchanger
High-efficiency titanium construction resists corrosion from pool chemicals and provides superior heat transfer performance.

Comprehensive Protection Systems

• High and low pressure protection
• Anti-freeze protection
• Water flow detection
• Automatic defrost function
• Soft start technology
• Wide voltage tolerance

📊 Complete Technical Specifications

Performance Data – Premium Conditions (Air 27°C, Water 27°C, 80% RH)

Specification	Value
Heating Capacity	27.5 kW
COP Range	15.0 – 6.5
Average COP at 50% Speed	10.3
Cooling Capacity (Air 35°C, Water 28°C)	11.9 kW

Performance Data – Cold Weather (Air 15°C, Water 26°C, 70% RH)

Specification	Value
Heating Capacity	18.0 kW
COP Range	7.5 – 4.6
Average COP at 50% Speed	6.3

Electrical Requirements

Specification	Value
Power Supply	230V Single Phase 50Hz
Rated Input Power	0.48 – 3.91 kW
Rated Input Current	2.08 – 17.00 A
Maximum Input Current	20 A
Rated Fuse Type	aM / MCB Type C
Fuse Rating	25 A
RCD Type Required	Type F, 30 mA

Operating Parameters

Specification	Value
Operating Air Temperature Range	-10°C to +43°C
Water Heating Range	18°C to 40°C
Water Cooling Range	12°C to 30°C
Recommended Water Flow Rate	10.0 – 12.0 m³/h
Pressure Drop	0.77 m / 7.5 kPa

Physical Specifications

Specification	Value
Dimensions (W × D × H)	1084 × 429 × 948 mm
Net Weight	90 kg
Water Connections	1½” or 50mm Female
Refrigerant Type	R32
Refrigerant Charge	2.0 kg
Global Warming Potential (GWP)	675

Acoustic Performance

Specification	Value
Sound Level at 10m	23.0 – 34.4 dB(A)
Sound Level at 1m	43.0 – 54.4 dB(A)
Sound Reduction vs On/Off	9-11 dB(A) quieter

🏊 Pool & Hot Tub Sizing Guide

Recommended Applications

✅ Ideal For:

• Hot tubs: 2,000 – 3,500 litres
• Swim spas: 8,000 – 15,000 litres
• Residential pools: 60 – 100 m² surface area
• Commercial hot tubs (smaller installations)
• Large domestic pools requiring year-round heating
• Installations with challenging weather conditions

⚠️ Important Sizing Considerations:

Water volume, ambient temperature, desired pool temperature, pool cover usage, and exposure all affect heat pump sizing. The 22kW output is particularly suited for:

🎯 Hot Tub Applications – Exceptional power-to-size ratio for rapid heating
🎯 Larger Residential Pools – Reliable heating even during cold weather
🎯 Commercial Settings – Consistent performance under heavy usage
🎯 All-Season Use – Maintains efficiency down to -10°C

⏱️ Estimated Heat-Up Times

These calculations provide realistic heating time estimates based on the 22kW output rating:

Hot Tub Heating Times (Starting from 15°C)

Water Volume	Target Temperature	Estimated Time*
1,500 litres (1.5 m³)	35°C (20°C rise)	1.6 hours
2,000 litres (2 m³)	38°C (23°C rise)	2.4 hours
2,500 litres (2.5 m³)	38°C (23°C rise)	3.0 hours
3,000 litres (3 m³)	40°C (25°C rise)	4.0 hours

Swimming Pool Heating Times (Starting from 15°C)

Pool Size (Surface)	Water Volume	Target Temp	Estimated Time*
4m × 8m × 1.5m avg	48 m³	28°C (13°C rise)	32 hours
5m × 10m × 1.5m avg	75 m³	28°C (13°C rise)	50 hours

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

⚠️ IMPORTANT DISCLAIMERS:

• These are theoretical estimates under optimal conditions
• Actual times vary based on: ambient temperature, wind exposure, pool insulation, starting water temperature, and whether a pool cover is used
• Heat loss during heating extends actual times, especially for uncovered pools
• Use Boost Mode for fastest heating, then switch to Whisper Mode for maintenance
• A well-fitted pool cover can reduce heating times by 40-60%

💰 Running Cost Comparison

The I-PAC+ 22’s exceptional efficiency delivers significant savings compared to traditional heating methods:

Annual Running Cost Estimates* (Based on 6-Month Season)

Heating Method	Estimated Annual Cost	CO₂ Emissions
I-PAC+ 22 Inverter Heat Pump	£450 – £850	✅ Low
Standard On/Off Heat Pump	£900 – £1,400	Medium
Gas Heater	£1,800 – £3,200	High
Oil Heater	£2,400 – £4,000	Very High
Electric Resistance Heater	£3,500 – £6,500	Very High

Why Inverter Technology Saves Money:

✅ Average COP of 10.3 means every 1 kW of electricity produces 10.3 kW of heat
✅ Modulating compressor only uses required energy
✅ No wasteful on/off cycling
✅ Optimized performance across all temperatures
✅ Reduced electricity consumption by up to 60% vs standard heat pumps

Estimates based on May-September usage, 50m² pool, 28°C target temperature, electricity at £0.28/kWh. Actual costs vary based on usage patterns, insulation, and local energy prices.

📄 Downloads & Documentation

Access comprehensive technical information and installation guidance:

📥 Owner Installation Manual (opens in new tab)
Complete installation guide covering electrical requirements, plumbing connections, winterization procedures, troubleshooting, and maintenance schedules. Essential reading for installers and owners. 159 pages

📥 Inverter Heat Pump Brochure (opens in new tab)
Technical specifications for the entire I-PAC range, sizing charts for domestic and commercial installations, performance comparisons, and product features overview. 8 pages

🔧 Installation Requirements

Clearance & Positioning

Minimum Clearances Required:

• Front (Air Outlet): 2,500mm clear space
• Sides: 700mm each side
• Rear (Air Inlet): 500mm
• Top: No obstructions

⚠️ Critical Installation Notes:

✅ Must be installed on solid, level concrete base
✅ Secure with M10 bolts through mounting feet
✅ Install at least 3.5m from pool/spa edge (electrical safety regulations)
✅ Well-ventilated location – no enclosed spaces
✅ Protect from direct rainfall where possible
✅ Avoid locations where outlet air can recirculate to inlet
✅ Position for easy access to controls and service panels

Minimum Floor Area Requirement: 34 m² (due to R32 refrigerant safety regulations)

Water Circuit Requirements

Water Flow: 10-12 m³/h (critical for optimal performance)
Connections: 1½” or 50mm female unions (supplied)
Bypass Valve: Required for flow regulation
Water Quality: Must maintain pH 7.2-7.8, see warranty conditions

Electrical Supply Requirements

Professional Installation Required – All electrical work must comply with IEE regulations and local codes.

🔌 Power Supply: 230V, 1-Phase, 50Hz
🔌 Circuit Protection: 25A MCB Type C or aM Fuse
🔌 RCD Protection: Type F, 30mA (dedicated to heat pump)
🔌 Isolator: All-pole isolator within 2m and line of sight
🔌 Voltage Tolerance: 207-253V (must not drop below minimum during operation)

⚠️ Dedicated Circuit Required – The heat pump must have its own dedicated electrical supply with appropriate earthing/grounding and RCD protection.

🛡️ Comprehensive 5-Year Warranty

Industry-Leading Protection:

✅ 5 Years on-site parts and labour
✅ Full Coverage including compressor, heat exchanger, and controls
✅ UK-Based Support from Dantherm Group UK
✅ Professional Service Network throughout the UK

Warranty Conditions:

The warranty covers manufacturing defects and component failure under normal use. To maintain warranty validity:

• Professional installation by qualified personnel required
• Water chemistry must be maintained within specified parameters (pH 7.2-7.8, see full specifications)
• Proper winterization procedures must be followed if installed outdoors
• Regular maintenance as per manual recommendations
• Appropriate electrical supply maintained

❓ Frequently Asked Questions

General Operation

Q: What size pool or hot tub can this heat pump handle?
A: The 22kW output is ideal for hot tubs from 2,000-3,500 litres, swim spas up to 15,000 litres, or residential pools with 60-100 m² surface area. For exact sizing, consider water volume, ambient conditions, desired temperature, and whether you use a pool cover. Contact us for personalized sizing advice.

Q: How quiet is the I-PAC+ 22 during operation?
A: Exceptionally quiet! In Whisper Mode, it operates at just 23-34.4 dB(A) at 10 metres – about the volume of a quiet library or gentle breeze through leaves. This is 9-11 dB(A) quieter than traditional on/off heat pumps, making it ideal for residential areas with close neighbors.

Q: Can this heat pump work in winter?
A: Absolutely! The I-PAC+ 22 is specifically designed for all-year-round operation down to -10°C ambient temperature. Unlike standard heat pumps that lose efficiency in cold weather, this model maintains excellent performance thanks to advanced inverter technology and R32 refrigerant optimized for cold conditions.

Q: What’s the difference between Boost Mode and Whisper Mode?
A: Boost Mode provides 20-100% heating capacity for fastest heating – perfect for initial heat-up or rapid temperature recovery. Whisper Mode operates at 20-80% capacity with 3 dB(A) lower noise levels – ideal for day-to-day temperature maintenance when quietness matters most.

Installation & Setup

Q: Can I install this heat pump myself?
A: Installation must be completed by qualified, competent professionals. Electrical work must comply with IEE regulations and local building codes. The heat pump requires proper electrical supply, plumbing integration, and refrigerant safety considerations. DIY installation will void your warranty and may violate safety regulations.

Q: How far should the heat pump be from my pool or hot tub?
A: For electrical safety compliance in wet areas, the heat pump must be installed at least 3.5 metres from the pool or hot tub edge. Additionally, maintain minimum clearances: 2.5m front clearance, 700mm sides, 500mm rear for proper airflow.

Q: Do I need special electrical wiring?
A: Yes. The I-PAC+ 22 requires a dedicated 230V single-phase supply with 25A MCB (Type C), Type F RCD protection at 30mA, and an isolator within 2m. Voltage must remain between 207-253V during operation. Always use a qualified electrician.

Q: Can I control this heat pump remotely?
A: Yes! The I-PAC+ 22 includes built-in WiFi connectivity, allowing you to control temperature, switch between heating/cooling modes, and monitor performance from your smartphone or tablet anywhere in the world. Optional remote control panels are also available for indoor installation.

Efficiency & Running Costs

Q: How much does it cost to run?
A: Running costs vary based on usage, but the exceptional COP of 10.3 means you get 10.3 kW of heat for every 1 kW of electricity consumed. For a typical 6-month season heating a 50m² pool to 28°C, expect annual running costs of £450-£850 (at £0.28/kWh) – up to 60% less than standard heat pumps and significantly less than gas or electric heaters.

Q: What does COP mean and why is it important?
A: COP (Coefficient of Performance) measures efficiency. A COP of 10.3 means the heat pump produces 10.3 units of heat for every 1 unit of electricity consumed. Higher COP = lower running costs. The I-PAC+ 22’s average COP of 10.3 makes it over twice as efficient as traditional on/off heat pumps (typical COP 4-5).

Q: Will a pool cover make a difference?
A: Absolutely! A quality pool cover can reduce heat loss by 40-60%, dramatically reducing heating times and running costs. We strongly recommend using a cover when the pool isn’t in use – it’s the single most cost-effective efficiency improvement you can make.

Maintenance & Durability

Q: How long will this heat pump last?
A: With proper maintenance and correct water chemistry, the I-PAC+ 22 is built to provide 15+ years of reliable service. The premium aluminium alloy construction, titanium heat exchanger, and quality inverter components are designed for longevity. The 5-year comprehensive warranty demonstrates the manufacturer’s confidence in durability.

Q: What maintenance is required?
A: Minimal routine maintenance: (1) Keep air intake grills clean and unobstructed, (2) Maintain proper water chemistry (pH 7.2-7.8), (3) Check electrical connections annually, (4) Professional service inspection every 2-3 years. If installed outdoors, follow proper winterization procedures during extended periods below freezing.

Q: What happens if there’s a problem?
A: The comprehensive 5-year warranty covers on-site parts and labour. The I-PAC+ 22 includes built-in protection systems that display error codes if issues arise. Dantherm Group UK provides professional support at +44 (0)1621 856611. Most issues can be diagnosed remotely via WiFi connectivity.

Technical & Compatibility

Q: What is R32 refrigerant and why does it matter?
A: R32 is a next-generation, eco-friendly refrigerant with a Global Warming Potential (GWP) of just 675 – significantly lower than older refrigerants. It’s F-Gas compliant, performs exceptionally well in cold weather, has zero ozone depletion potential, and requires less refrigerant volume. This makes your heat pump more environmentally responsible.

Q: Can this heat pump cool my pool in summer?
A: Yes! The I-PAC+ 22 offers heat/cool functionality. In cooling mode (air 35°C, water 28°C), it provides 11.9 kW of cooling capacity – perfect for maintaining comfortable water temperatures during hot summer days when your pool water might otherwise become too warm.

Q: Is this suitable for commercial use?
A: The 22kW capacity makes it suitable for smaller commercial installations such as boutique hotel hot tubs, gym spa facilities, or commercial swim spas. For larger commercial pools, consider multiple units or consult with us for commercial-grade solutions from the Pro-Pac range.

Q: Do I need to winterize this heat pump?
A: If the heat pump will be exposed to prolonged freezing temperatures and won’t be running, proper winterization is essential to prevent frost damage. This involves draining water circuits, disconnecting power, and following the comprehensive winterization procedures outlined in the installation manual. Failure to winterize when required will void the warranty.

🎁 Optional Accessories

Enhance your heat pump experience:

📱 Remote Control Panel Kit
Indoor LED control panel with 10m extension cable. Perfect for installations where the heat pump controls are inconvenient to access or when indoor control is preferred.

❄️ Winter Protection Cover
Custom-fitted, ventilated cover provides additional protection during off-season storage. While the I-PAC+ 22 is designed for all-year operation, this cover adds an extra layer of protection during extended periods of non-use.

🌟 Why Buy From Parts4Tubs?

✅ Authorized Dealer – Genuine Dantherm/Calorex products with full manufacturer warranty
✅ Expert Advice – Knowledgeable team to help with sizing and technical questions
✅ Fast Dispatch – Quick shipping to get your installation underway
✅ Professional Support – Ongoing assistance and technical guidance
✅ Competitive Pricing – Best value for premium heating equipment

🚀 Ready to Transform Your Pool or Hot Tub Experience?

The I-PAC+ 22 Side Outlet Inverter Heat Pump represents the ultimate solution for year-round, energy-efficient pool and hot tub heating. With its exceptional 22kW power output, whisper-quiet operation, smart WiFi control, and industry-leading 5-year warranty, you’re investing in comfort, efficiency, and peace of mind.

Perfect for:

• 🏊 Hot tub owners demanding rapid heating and all-season reliability
• 🏡 Homeowners with larger pools requiring efficient year-round heating
• 🏢 Small commercial installations needing professional-grade performance
• 🌍 Environmentally conscious buyers seeking eco-friendly technology
• 🔇 Anyone prioritizing quiet operation in residential settings

Key Benefits Summary:

• ⚡ Average COP 10.3 – over twice as efficient as standard heat pumps
• 🌡️ -10°C to +43°C operating range – true all-season capability
• 🔇 23-34.4 dB(A) at 10m – whisper-quiet operation
• 📱 Built-in WiFi – control from anywhere
• 🛡️ 5-year comprehensive warranty – complete peace of mind
• 🌍 R32 eco-friendly refrigerant – low environmental impact

Don’t settle for anything less than premium performance. Order your I-PAC+ 22 today and experience the difference that advanced inverter technology makes to your pool or hot tub enjoyment.

Need Help Choosing? Contact our expert team for personalized sizing advice and technical support. We’re here to ensure you select the perfect heating solution for your specific installation.