Fairland Inverter+ 13kW Full-Inverter Pool Heat Pump – IPHR33 | Ultra-Quiet Smart Heating 🌊

Transform your pool heating experience with the Fairland Inverter+ 13kW Pool Heat Pump – the pinnacle of energy-efficient, whisper-quiet pool heating technology. Featuring revolutionary Full-Inverter technology with twin-rotary DC compressors, this advanced system delivers up to 50% reduction in running costs compared to conventional heat pumps while operating at noise levels approximately 10 times quieter than standard units.

Perfect for larger residential pools (30-55m³), the IPHR33 combines intelligent WiFi connectivity, premium titanium construction, and adaptive performance intelligence to provide comfortable swimming temperatures throughout an extended season – all while minimizing your environmental footprint and energy bills.

Revolutionary Full-Inverter Technology That Saves You Money

Unlike conventional on/off heat pumps that operate at fixed speeds, the Inverter+ 13kW intelligently modulates its performance to match your exact heating requirements:

✅ Rapid Initial Heating – Operates at 100% capacity when you first start heating your pool at the beginning of the season, getting you swimming-ready faster

✅ Smart Maintenance Mode – Automatically adjusts to approximately 50% power once your desired temperature is reached, dramatically reducing ongoing energy consumption

✅ Continuous Optimization – The sophisticated control system analyzes water temperature, ambient conditions, and heating history in real-time, constantly adapting for maximum efficiency

✅ Soft Start Technology – Eliminates electrical surges and extends component life by gradually ramping up power rather than sudden on/off cycling

The Result? You enjoy perfectly heated pool water year after year while cutting your heating costs in half compared to traditional heat pumps.

🔇 Whisper-Quiet Operation for Peaceful Enjoyment

One of the most impressive features of the Inverter+ technology is the dramatically reduced noise levels:

💡 Approximately 10 times quieter than standard heat pumps
💡 Twin-rotary DC compressors virtually eliminate vibrations
💡 Ultra-low noise during maintenance heating when operating at reduced speeds
💡 37.8-47.2 dB(A) at 1 meter – quieter than a normal conversation
💡 17.8-27.2 dB(A) at 10 meters – barely audible from across your garden

Two Operating Modes for Different Needs:

Smart Mode (Default) – Heating capacity 20-100%, ideal for rapid heating and day-time operation
Silence Mode – Heating capacity 20-80%, 3dB(A) quieter than Smart mode, perfect for overnight operation

📱 Complete Smart Control at Your Fingertips

The integrated WiFi module transforms how you manage your pool heating. Through the intuitive smartphone app, you can:

📲 Control and monitor your heat pump remotely from anywhere in the world
📲 Create custom heating schedules aligned with your swimming patterns
📲 Track real-time energy consumption and efficiency metrics
📲 Receive maintenance alerts and system notifications instantly
📲 Make temperature adjustments without accessing the equipment
📲 Monitor water inlet and outlet temperatures
📲 View heating capacity percentage and operating status

Power-Off Memory Function – When power is restored after an outage, the heat pump automatically restarts with your previous settings, ensuring uninterrupted comfort.

📄 Technical Documentation & Downloads

Complete Installation & User Manual 📥
Download Fairland Inverter+ Installation Manual (PDF) (opens in new tab)

This comprehensive 29-page manual includes:

• Complete installation instructions with dimensional drawings and clearance requirements
• Detailed wiring diagrams for single-phase connection
• WiFi setup and smartphone app configuration guide
• Operating instructions for both Smart and Silence modes
• Technical specifications table for all Inverter+ models
• Troubleshooting guide with error code explanations
• Winterizing and maintenance procedures
• Heating priority wiring diagrams (optional configurations)
• Daily maintenance checklist and safety warnings

Essential reading for installers and owners – contains critical information for optimal performance and longevity

⚡ Outstanding Energy Performance

Coefficient of Performance (COP) Ratings

At Air 28°C / Water 26°C / 80% Humidity:

• COP Range: 16.3 to 7.7
• COP at 50% Capacity: 11.7
• Maximum Heating Capacity: 13.8 kW

At Air 15°C / Water 26°C / 70% Humidity:

• COP Range: 7.7 to 4.8
• COP at 50% Capacity: 6.8
• Heating Capacity: 9.0 kW

What This Means for You:
For every 1 kW of electricity consumed, the heat pump generates between 4.8 to 16.3 kW of heating power by extracting free heat energy from the ambient air. This incredible efficiency translates to significantly lower running costs compared to electric heaters, gas heaters, or conventional heat pumps.

Operating Range & Recommended Conditions

Operating Air Temperature Range: -10°C to 43°C
Ideal Performance Range: 15°C to 25°C ambient air temperature
Temperature Setting Range: 18°C to 40°C

The Inverter+ technology ensures efficient operation even in cooler conditions, making extended swimming seasons economically viable.

🏊 Pool Sizing & Heat-Up Time Estimates

Recommended Pool Volume

Optimal Range: 30-55 cubic meters (m³)
Coverage Range: 15-30m³ (smaller pools) to 55m³+ (larger pools with longer heat-up times)

⚠ Important: Choosing an appropriately sized heat pump ensures the system operates predominantly at lower speeds, maximizing energy savings and minimizing noise while maintaining consistent temperatures.

Estimated Heat-Up Times

The following table provides estimated times to heat various pool volumes based on the IPHR33’s heating capacity. Actual times will vary based on ambient temperature, pool insulation, wind exposure, and whether you use a pool cover.

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

Heat-Up Time Estimates at Air 15°C (9.0 kW Heating Capacity)

Pool Volume	From 15°C to 25°C (10°C rise)	From 15°C to 28°C (13°C rise)	From 20°C to 28°C (8°C rise)
30 m³	39 hours (1.6 days)	50 hours (2.1 days)	31 hours (1.3 days)
40 m³	52 hours (2.2 days)	67 hours (2.8 days)	41 hours (1.7 days)
50 m³	64 hours (2.7 days)	84 hours (3.5 days)	52 hours (2.2 days)
55 m³	71 hours (3.0 days)	92 hours (3.8 days)	57 hours (2.4 days)

Heat-Up Time Estimates at Air 28°C (13.8 kW Heating Capacity)

Pool Volume	From 20°C to 28°C (8°C rise)	From 22°C to 28°C (6°C rise)	From 24°C to 28°C (4°C rise)
30 m³	20 hours (0.8 days)	15 hours (0.6 days)	10 hours (0.4 days)
40 m³	27 hours (1.1 days)	20 hours (0.8 days)	13 hours (0.5 days)
50 m³	34 hours (1.4 days)	25 hours (1.0 days)	17 hours (0.7 days)
55 m³	37 hours (1.5 days)	28 hours (1.2 days)	18 hours (0.8 days)

⚠ Important Disclaimers:

These estimates assume:

• Pool filtration running at least 15 hours daily
• Use of an isothermal (insulated) pool cover when not in use
• Minimal wind exposure
• Average heat loss conditions
• Continuous operation of the heat pump

Actual heat-up times may be significantly longer if:

• Pool is uncovered (heat loss can be 3-5 times higher)
• Exposed to high winds
• Ambient temperature is below 15°C
• Pool has poor insulation
• Filtration time is reduced

To minimize heat-up times and running costs: ✅ Always use a quality pool cover when the pool is not in use
✅ Run filtration pump for at least 15 hours daily during heating
✅ Choose a sheltered location for your pool
✅ Consider starting heating well before you plan to swim
✅ Size heat pump generously for faster results and lower noise operation

🏗️ Premium Construction & Components

Titanium Heat Exchanger
The corrosion-resistant titanium spiral tube heat exchanger ensures exceptional longevity and reliability, even with exposure to pool chemicals, salt water, and varying water conditions. Titanium’s superior durability means decades of trouble-free operation.

Twin-Rotary Mitsubishi DC Inverter Compressor
At the heart of the system lies a premium Mitsubishi twin-rotary DC inverter compressor – the same technology used in high-end air conditioning systems worldwide. This advanced compressor provides:

• Variable speed operation from 20% to 100% capacity
• Exceptional efficiency across the entire operating range
• Minimal vibration and noise
• Extended service life due to reduced mechanical stress
• Rapid response to temperature changes

Environmentally Friendly R32 Refrigerant
The heat pump uses R32 refrigerant, which has:

• Lower Global Warming Potential (GWP: 675) compared to older refrigerants
• Better energy efficiency
• Reduced environmental impact
• CO₂ Equivalent: 0.540 tonnes

Robust Aluminum-Alloy Casing
Weather-resistant aluminum-alloy housing protects internal components from environmental factors while maintaining an attractive, professional appearance.

📊 Complete Technical Specifications

Specification	Details
Model Number	IPHR33
Heating Capacity (Air 28°C)	13.8 kW
Heating Capacity (Air 15°C)	9.0 kW
Coefficient of Performance (COP)	16.3 to 4.8 (varies with conditions)
COP at 50% Capacity	11.7 (Air 28°C) / 6.8 (Air 15°C)
Recommended Pool Volume	30-55 cubic meters (m³)
Operating Air Temperature Range	-10°C to +43°C
Water Temperature Setting Range	18°C to 40°C
Power Supply	230V / 1 Phase / 50Hz
Rated Input Power (Air 15°C)	0.23 – 1.81 kW
Rated Input Current (Air 15°C)	1.00 – 7.87 A
Recommended Water Flow Rate	4-6 m³/hour
Sound Pressure Level (1 meter)	42.1 – 50.7 dB(A)
Sound Pressure Level (10 meters)	22.1 – 30.7 dB(A)
Compressor Type	Twin-Rotary Mitsubishi DC Inverter
Heat Exchanger	Spiral Titanium Tube in PVC Housing
Refrigerant Type	R32 (Environmentally Friendly)
Refrigerant Charge	800g
Water Connection Size	50mm (inlet and outlet)
Dimensions (L × W × H)	954 × 359 × 648 mm
Net Weight	50 kg
Casing Material	Aluminum-Alloy
WiFi Connectivity	Built-in WiFi Module with Smartphone App
Operating Modes	Smart Mode & Silence Mode
Heating Capacity Range	20% to 100% (Smart) / 20% to 80% (Silence)
Special Features	Soft start, auto-defrost, power-off memory
Protection Features	Anti-freeze, water flow monitoring, high/low pressure protection

💰 Running Cost Comparison

Annual Cost Savings vs. Conventional Heating

Based on heating a 40m³ pool from April to September (6 months) in moderate UK climate:

Electric Resistance Heater:
Estimated annual cost: £2,400 – £3,200 (depending on electricity rates)

Gas Heater:
Estimated annual cost: £1,600 – £2,400 (depending on gas rates)

Conventional On/Off Heat Pump:
Estimated annual cost: £1,200 – £1,600

Fairland Inverter+ 13kW Heat Pump:
Estimated annual cost: £600 – £800 (up to 50% savings vs. conventional heat pump)

⚠ Estimates based on average UK energy prices, pool covered when not in use, and typical seasonal usage. Actual costs will vary based on pool size, desired temperature, climate, insulation, and current energy rates.

Environmental Impact

By choosing the Inverter+ 13kW, you’re also reducing your carbon footprint:

Annual CO₂ Savings vs. Electric Heater: Approximately 4-6 tonnes
Annual CO₂ Savings vs. Gas Heater: Approximately 2-4 tonnes
Annual CO₂ Savings vs. Conventional Heat Pump: Approximately 1-2 tonnes

🔧 Installation Requirements

Minimum Clearance Requirements

For optimal performance and longevity, ensure adequate clearance around the unit:

Front (Air Inlet): Minimum 250mm clearance
Top (Air Outlet): Minimum 2000mm clearance
Sides: Minimum 300mm clearance
Rear: Minimum 200mm clearance

Installation Location Guidelines

✅ Do Install:

• In a well-ventilated outdoor location
• On a solid, level concrete foundation or anti-vibration pads
• With easy access for maintenance
• Where condensate drainage is possible
• Protected from direct wind exposure (where practical)

❌ Do Not Install:

• Indoors or in enclosed spaces
• In areas with restricted airflow
• Directly against walls or fences
• Where falling debris could damage the unit
• In locations exposed to corrosive substances

Electrical Requirements

Power Supply: 230V / 1 Phase / 50Hz
Breaker Rated Current: 14.5A
Residual Current Device (RCD): 30mA leakage current
Fuse: 14.5A
Power Cable: 3 × 2.5mm² (for cable runs ≤10m)
Signal Cable: 3 × 0.5mm² (can be extended to 50m maximum)

⚠ Critical: Installation must be performed by a qualified professional electrician and pool technician in accordance with local electrical codes and regulations. Improper installation may void warranty and create safety hazards.

Water Connection Requirements

Pipe Connection Size: 50mm (inlet and outlet)
Maximum Pipe Length (Pool to Heat Pump): ≤10m recommended for optimal efficiency
Required Water Flow Rate: 4-6 m³/hour
Connection Type: Hard pipe connections required (water unions cannot support soft pipe weight)
Additional Equipment Needed: Circulation pump with minimum 10m head pressure (user-supplied)

Important: The heat pump should be installed in the water circulation system with appropriate isolation valves for servicing and winterization.

❄️ Winterization & Maintenance

Winter Storage (When Pool Not in Use)

When winterizing your pool and heat pump:

1. Switch off main power supply at the distribution box
2. Unscrew the water inlet union completely
3. Allow all water to drain from the heat exchanger
4. Leave drain point open during winter storage
5. Cover the unit with a breathable weather cover (optional)

⚠ Critical Warning: If water freezes inside the titanium heat exchanger during winter, severe damage may occur that is NOT covered by warranty. Complete water drainage is essential.

Operating in Cold Weather

If using the heat pump when air temperature is below 2°C:

✅ Ensure continuous water flow through the system
✅ Monitor for ice formation regularly
✅ Consider heating priority wiring (see installation manual for diagrams)

Annual Maintenance Checklist

Tasks You Can Do:

• Clean the evaporator (air inlet coils) with household detergent or water
• Check for debris blocking air inlet or outlet
• Inspect water connections for leaks
• Verify condensate drainage is functioning
• Test WiFi connectivity and app functionality

Tasks Requiring Professional Service (Annual):

• Complete system inspection by qualified technician
• Refrigerant level and pressure checks
• Electrical connection verification
• Compressor performance testing
• Sensor calibration verification

🙋 Frequently Asked Questions

How long will it take to heat my pool initially?

Initial heat-up time depends on pool volume, starting water temperature, target temperature, and ambient air temperature. For a typical 40m³ pool, expect 2-3 days to heat from 15°C to 28°C in moderate spring conditions (15°C ambient). Using a pool cover significantly reduces heat-up time. See the detailed heat-up time tables above for specific scenarios.

How much does it cost to run per day?

Running costs vary based on ambient temperature, desired pool temperature, and whether you use a pool cover. During maintenance heating in summer (pool already at temperature), expect £2-5 per day. Initial heat-up costs more but is a one-time expense per season. The Inverter+ technology reduces ongoing costs by up to 50% vs. conventional heat pumps.

How quiet is the heat pump really?

The IPHR33 operates at 42-51 dB(A) at 1 meter, which is similar to a quiet library or normal conversation level. At 10 meters distance, it measures just 22-31 dB(A) – barely audible. In Silence mode during overnight maintenance heating, it’s even quieter. This is approximately 10 times quieter than standard on/off heat pumps.

Can I control it when I’m away from home?

Yes! The built-in WiFi module and smartphone app allow complete remote control from anywhere with internet access. Adjust temperatures, change operating modes, set schedules, and monitor performance from your phone, tablet, or computer. Perfect for adjusting heating before you arrive at your holiday home or for monitoring while on vacation.

What size pool is this heat pump suitable for?

The IPHR33 is optimally sized for pools between 30-55 cubic meters (approximately 30,000-55,000 liters or 7,900-14,500 gallons). It can heat smaller pools (down to 15m³) but will operate at lower capacity and be even quieter. For larger pools, consider the 15.9kW (IPHR40) or larger models for reasonable heat-up times.

Will it work in winter or cold weather?

Yes, the Inverter+ operates in ambient temperatures from -10°C to +43°C. However, heating capacity and efficiency reduce as air temperature drops. At 15°C ambient, it provides 9.0 kW heating capacity with a COP of 6.8. In very cold conditions, it’s most economical to maintain temperature rather than let the pool cool completely and reheat.

Do I need a pool cover?

While not mandatory, a quality insulated pool cover is highly recommended and will dramatically improve performance. An uncovered pool can lose 70% or more of its heat through evaporation and radiation. A cover reduces heat loss by 50-90%, significantly reducing both heat-up times and daily running costs. Your investment in a cover typically pays for itself within one season.

How do I know what temperature to set?

Recommended pool temperatures vary by use:

• Leisure swimming: 26-28°C
• Children and therapy: 28-30°C
• Athletic training: 25-27°C
• Spa/hot tub: 35-40°C (check manufacturer recommendations)

Start at 27°C and adjust based on personal preference. Each 1°C increase adds approximately 10-15% to running costs.

What maintenance does it require?

Minimal maintenance is required:

• Monthly: Clean air inlet coils with water or household detergent, check for debris
• Annually: Professional service inspection
• Seasonally: Proper winterization with complete water drainage
• As needed: Monitor and clean condensate drainage

The Inverter+ technology has fewer start/stop cycles than conventional heat pumps, resulting in less wear and longer component life.

Is professional installation necessary?

Yes, absolutely. Professional installation by a qualified pool and electrical technician is essential and typically required to maintain warranty coverage. The installation involves:

• Electrical connection to mains power with proper earthing
• Water circuit integration with isolation valves
• Proper sizing and placement for optimal performance
• Leak testing and commissioning
• WiFi configuration and system testing

What warranty is included?

Please contact us directly for detailed warranty information. Fairland typically provides comprehensive manufacturer’s warranty coverage on parts and labor when installed by qualified professionals. Warranty registration through authorized dealers is usually required.

Can it heat and cool the pool?

The IPHR33 is a heating-only model designed specifically for pool heating applications. It does not have a cooling function. For pool cooling in very hot climates, separate cooling systems are available.

What if I have low water flow or the pump stops?

The heat pump has built-in protection systems:

• E3 Code: No water flow protection immediately stops the heat pump
• E6 Code: Insufficient water flow protection activates
• The unit will not operate without adequate water circulation to prevent heat exchanger damage

Always ensure your circulation pump is operating before the heat pump starts, and continues running while the heat pump operates.

✅ What’s Included in the Box

When you receive your Fairland Inverter+ 13kW Heat Pump, you’ll find:

📦 Main Unit – Inverter+ 13kW Heat Pump with integrated WiFi module
📦 Condensate Drainage Tube – For water discharge during operation
📦 Installation Clips & Fasteners – For secure mounting
📦 User Manual – Complete installation and operating guide
📦 WiFi Setup Instructions – For smartphone app configuration

Not Included (User-Supplied):

• Water circulation pump (4-6 m³/hour flow rate, minimum 10m head)
• Hard pipe plumbing connections (50mm diameter)
• Electrical wiring and connection materials
• Mounting base (concrete pad or anti-vibration platform)
• Pool cover (highly recommended for efficiency)

🌍 Environmental Commitment

Choosing the Fairland Inverter+ 13kW demonstrates your commitment to environmental responsibility:

♻️ R32 Refrigerant – Low Global Warming Potential (GWP: 675) vs. older R410A (GWP: 2088)
♻️ Energy Efficiency – COP ratings up to 16.3 mean you generate 16.3 kW heat for every 1 kW electricity
♻️ Reduced Carbon Emissions – Up to 80% lower CO₂ emissions vs. gas or electric heaters
♻️ Extended Lifespan – Inverter technology reduces component wear for longer service life
♻️ Quieter Operation – Less noise pollution for you and your neighbors

By extracting free thermal energy from the ambient air rather than burning fossil fuels or using resistance heating, you’re making a positive environmental choice while saving substantially on operating costs.

🛒 Why Buy from Parts4Tubs?

As a specialist retailer of hot tub spare parts and pool equipment, we offer:

✅ Expert Product Knowledge – Detailed guidance on system selection and compatibility
✅ Competitive Pricing – Premium quality at fair prices
✅ Technical Support – Pre and post-purchase assistance
✅ Genuine Fairland Products – Factory-authorized distributor
✅ Fast Dispatch – Quick processing and reliable delivery
✅ Installation Guidance – We can help you find qualified installers in your area

📞 Need Help Choosing?

Selecting the right heat pump for your pool is an important decision. Factors to consider include:

• Your pool volume and dimensions
• Desired swimming season length
• Climate and typical ambient temperatures
• Budget for both equipment and running costs
• Noise tolerance for your location
• Existing filtration system compatibility

We’re here to help! Contact us with your pool specifications and requirements, and we’ll provide personalized recommendations to ensure you choose the perfect heating solution.