Poolex SilverLine Top 90 Inverter Heat Pump with Wi-Fi – 8.88kW Smart Pool Heating & Cooling 🌊💨
Experience year-round pool comfort with intelligent, energy-saving technology
Transform your swimming experience with the Poolex SilverLine Top 90—an advanced 8.88kW inverter heat pump that delivers fast, whisper-quiet heating and cooling for pools between 40-50m³. Rated SCOP Class A, this premium unit combines cutting-edge Full Inverter technology with smartphone control, saving you up to 35% on annual energy costs while maintaining perfect water temperature in any season.
With its sleek vertical airflow design, built-in Wi-Fi connectivity, and robust titanium heat exchanger, this is more than just a pool heater—it’s your gateway to effortless, eco-friendly pool enjoyment from spring through autumn, and even beyond.
⚡ Full Inverter Technology = Maximum Savings Unlike traditional on/off heat pumps, the SilverLine Top 90 continuously adjusts compressor and fan speed to match your pool’s exact needs. This intelligent modulation delivers 30-35% energy savings annually while maintaining stable water temperature without fluctuations.
📱 Control From Anywhere Built-in Wi-Fi lets you monitor and adjust your pool temperature remotely via the free Poolex app (iOS & Android). Check water temperature, switch modes, set schedules, and receive alerts—all from your smartphone, whether you’re at home or away.
🔇 Impressively Quiet Operation With a noise level of just 36 dB(A) at 10 metres, the SilverLine Top 90 is quieter than a whispered conversation. The vertical fan design directs sound upwards and away from living areas, making it ideal for residential gardens and noise-sensitive locations.
🏗️ Space-Saving Vertical Design The innovative vertical airflow system reduces the unit’s footprint, making installation possible in tighter spaces where traditional horizontal-discharge heat pumps won’t fit. Compact dimensions (582 × 515 × 775 mm) mean more flexibility in placement.
❄️ All-Season Performance Operates efficiently in temperatures down to -15°C, extending your swimming season far beyond what gas or electric heaters can economically achieve. Whether you want cozy warmth in spring or refreshing cooling in summer, the SilverLine adapts automatically.
🌍 Eco-Friendly R32 Refrigerant Uses low Global Warming Potential (GWP) R32 refrigerant, making it kinder to the environment while delivering exceptional efficiency. For every 1 kW of electricity consumed, the unit generates over 7 kW of heating output in optimal conditions.
🛡️ Built to Last Premium aluminium casing resists corrosion, while the Twisted Tech™ titanium heat exchanger withstands chlorine, salt, and harsh pool chemicals. Backed by comprehensive warranties: 3 years on the unit, 5 years on the compressor, and an industry-leading 10 years on the titanium coil.
📋 Complete Technical Specifications
Performance Data
| Operating Condition | Specification | What This Means For You |
|---|---|---|
| Ideal Pool Size | 40-50 m³ (35,000-44,000 litres) | Perfect for medium-sized family pools |
| Heating Capacity (A26/W26) | 8.88 kW maximum | Rapid temperature increase on warm days |
| Heating Capacity (A15/W26) | 6.15 kW | Reliable performance in cooler spring/autumn weather |
| COP at A26/W26 | 5.89-11.11 | Exceptional efficiency: up to 11 units of heat per unit of electricity |
| COP at A15/W26 | 4.81-7.00 | Strong performance even when air temperature drops |
| SCOP (Seasonal) | 7.31 – Class A | Outstanding year-round efficiency rating |
| Cooling Capacity | 5.79 kW at A35/W26 | Keep your pool refreshingly cool in hot weather |
Electrical Specifications
| Parameter | Value |
|---|---|
| Power Supply | 230V Single Phase, 50Hz |
| Maximum Power Input | 2.0 kW |
| Maximum Current | 8.5A |
| Recommended Circuit Breaker | Type C or D, 12A minimum (16A recommended) |
| Power Consumption Range | 0.27-1.51 kW (varies with load) |
Physical & Installation Specs
| Feature | Details |
|---|---|
| Dimensions (L × W × H) | 582 × 515 × 775 mm |
| Net Weight | 54 kg |
| Noise Level (at 10m) | 36 dB(A) – Exceptionally quiet |
| Noise Level (at 1m) | 48 dB(A) |
| Water Connections | 1½” Female Thread / 50mm Glue Union (included) |
| Nominal Water Flow Rate | 3.1 m³/h |
| Fan Direction | Vertical (upward discharge) |
| IP Rating | IPX4 (splash-proof) |
Temperature & Operating Ranges
| Range Type | Temperature |
|---|---|
| Heating Range | 15°C to 40°C |
| Cooling Range | 10°C to 30°C |
| Operating Temperature | -15°C to +45°C ambient |
| Optimal Performance | 15°C to 35°C ambient |
Components & Build Quality
| Component | Specification |
|---|---|
| Compressor | GMCC High-Quality Single Rotary Inverter |
| Heat Exchanger | Twisted Tech™ Titanium – Salt & Chlorine Resistant |
| Refrigerant | R32 (800g charge) |
| Evaporator | Hydrophilic Aluminium Fins with Copper Tubes |
| Casing Material | Premium Aluminium (anti-UV treated) |
| Control System | Touch Screen with Wi-Fi Module (2.4GHz) |
📄 Downloads & Documentation
Everything you need to install, operate, and maintain your heat pump:
📥 Poolex SilverLine Top Installation & User Manual (opens in new tab) Complete multilingual guide covering installation procedures, hydraulic connections, electrical wiring, Wi-Fi setup, programming schedules, troubleshooting, and maintenance. Essential reading before installation. (PDF, 83 pages)
📥 Poolex SilverLine Top Technical Specifications Sheet (opens in new tab) Detailed performance data across all temperature conditions, dimensional drawings, warranty information, and technical comparison tables for the entire SilverLine Top range. (PDF, 2 pages)
🔥 Real-World Pool Heating Performance
Understanding Heat-Up Times
How long will it take to heat your pool? The table below provides estimated heat-up times based on the unit’s 8.88kW heating capacity at optimal conditions (air temp 26°C, water temp 26°C). Actual times vary with weather, pool insulation, and cover usage.
Estimated Time to Raise Pool Temperature
| Pool Volume | Temperature Rise 5°C | Temperature Rise 8°C | Temperature Rise 10°C |
|---|---|---|---|
| 35,000 L (35m³) | ~23 hours | ~37 hours | ~46 hours |
| 40,000 L (40m³) | ~26 hours | ~42 hours | ~53 hours |
| 45,000 L (45m³) | ~30 hours | ~48 hours | ~60 hours |
| 50,000 L (50m³) | ~33 hours | ~53 hours | ~66 hours |
📌 Important Notes:
- Times assume continuous operation at maximum capacity (A26/W26 conditions)
- Use a pool cover to dramatically reduce heat-up times and running costs
- Cooler weather increases heating time; warmer weather decreases it
- Initial heat-up takes longest; maintaining temperature requires far less energy
- For best efficiency, heat your pool gradually (1-2°C per day) rather than rapid heating
Formula Used: Time (hours) = (Pool Volume m³ × Temperature Rise °C × 1.16) ÷ Heat Pump kW Rating
🌡️ Seasonal Performance Guide
Spring (10-15°C ambient): The heat pump operates efficiently but at reduced output (~4-6 kW). Expect gradual heating. Best for extending your season early with covered pools. Running time: 8-12 hours daily to maintain temperature.
Summer (25-30°C ambient): Peak performance! Full 8.88 kW output delivers fast heating. The unit can also switch to cooling mode on extremely hot days to prevent overheating. Running time: 4-8 hours daily.
Autumn (10-20°C ambient): Excellent performance for late-season swimming. The inverter technology maintains efficiency even as temperatures drop. Cover your pool overnight to retain heat.
Winter (below 10°C): Automatic antifreeze protection activates when temperature drops below 2°C. For prolonged below-freezing periods, winterize the unit following the manual instructions.
⚙️ Operating Modes Explained
🔥 Heating Mode (ECO) Standard heating operation that balances performance with energy efficiency. Ideal for daily use and maintaining set temperature.
🔥 Heating Mode (BOOST) Maximum heating power for rapid temperature increase. Use when you need to heat the pool quickly, such as before a pool party.
🔇 Heating Mode (SILENT) Reduced fan and compressor speed for ultra-quiet operation. Perfect for evening use in noise-sensitive areas, though heating is slower.
❄️ Cooling Mode (ECO/BOOST/SILENT) Reverses the cycle to extract heat from the water. Prevents pool overheating during heat waves. Available in three intensity levels.
🤖 Auto Mode (ECO) Intelligent mode that automatically switches between heating and cooling to maintain your set temperature, regardless of weather conditions.
💰 Energy Savings & Running Costs
How Much Does It Cost to Run?
Based on UK average electricity rate of £0.24 per kWh (2024):
| Usage Scenario | Daily Runtime | Daily Cost | Monthly Cost (30 days) |
|---|---|---|---|
| Early Season (April-May) | 10 hours at 1.2 kW avg | £2.88 | £86.40 |
| Peak Season (June-August) | 6 hours at 0.8 kW avg | £1.15 | £34.50 |
| Late Season (Sept-Oct) | 8 hours at 1.0 kW avg | £1.92 | £57.60 |
💡 Compare with Traditional Heating:
- Electric heater (9kW): £21.60 per day for 10 hours = £648/month
- Gas heater: £8-12 per day depending on gas prices = £240-360/month
- Poolex SilverLine Top 90: £1-3 per day = £35-90/month
Your heat pump pays for itself through energy savings!
📦 What’s Included in the Box
✅ Poolex SilverLine Top 90 Heat Pump Unit ✅ 2× Hydraulic Connectors (50mm glue union fittings) ✅ Condensation Drainage Kit ✅ Winter Protective Cover ✅ 4× Anti-Vibration Pads (mounting hardware not included) ✅ Multilingual Installation & User Manual ✅ Wi-Fi Control Ready (2.4GHz module built-in)
🔧 You’ll Also Need (Not Included):
- Bypass valve kit (3-valve assembly)
- 50mm PVC piping and fittings
- Electrical cable suitable for outdoor use (3-core, 2.5mm²)
- Circuit breaker (12-16A Type C or D recommended)
- PVC adhesive and primer
- Mounting hardware appropriate for your installation surface
🛠️ Installation Requirements
Location Guidelines
✅ DO:
- Install on a firm, level concrete base or suitable mounting pads
- Ensure at least 50cm clearance on all sides and rear
- Leave at least 1 metre clearance in front of the unit (airflow direction)
- Position where condensate drainage can be directed away
- Choose a location with good ventilation and minimal obstructions
- Consider noise-sensitive areas—point discharge away from bedrooms/neighbours
- Install close to pool equipment for shorter pipe runs
❌ DON’T:
- Install in confined spaces or against walls
- Block or restrict airflow to the unit
- Install where discharged air can recirculate back to the intake
- Place near flammable materials or corrosive chemicals
- Install in areas prone to flooding or standing water
- Position where falling leaves or debris will accumulate
Hydraulic Connection
The heat pump must be installed with a bypass system using three valves. This allows you to:
- Regulate water flow through the heat pump
- Isolate the unit for maintenance without shutting down pool circulation
- Fine-tune flow rate to the recommended 3.1 m³/h
Water Flow Requirements:
- Minimum: 2.5 m³/h
- Optimal: 3.1 m³/h
- Maximum: 4.0 m³/h
Clean water is essential! Install the heat pump downstream of your pool filter, but upstream of any chemical treatment systems (chlorinators, dosing pumps). This protects the titanium heat exchanger from concentrated chemicals.
Electrical Connection
⚠️ Professional Installation Required
Electrical work must comply with current IEE Wiring Regulations (BS 7671) in the UK, or equivalent standards in your region:
- Dedicated Circuit: The heat pump requires its own circuit protected by a 12-16A Type C or D circuit breaker
- RCD Protection: Install a 30mA residual current device (RCD) upstream
- Cable: Use 3-core outdoor-rated cable (2.5mm² for runs up to 10m)
- Earth: Proper earthing is essential—connect to main earth terminal
- Phase: Correct phase connection for single-phase supply (this model: 230V only)
Optional: Pump Servo-Control Terminals P1 and P2 allow you to connect your circulation pump, so it runs automatically with the heat pump. Maximum 5A (750W) direct connection; use a contactor relay for larger pumps.
❓ Frequently Asked Questions
Q1: What size pool is this heat pump suitable for? The Poolex SilverLine Top 90 is designed for pools with a water volume of 40-50 m³ (40,000-50,000 litres). This typically corresponds to pools measuring approximately 8m × 4m × 1.5m depth. It can handle slightly smaller pools (35m³) with ease, or larger pools (up to 55m³) if you’re patient with longer heat-up times.
Q2: How long does it take to heat my pool from 15°C to 25°C? For a 45,000-litre (45m³) pool, raising temperature by 10°C typically takes 60-72 hours of continuous operation in good weather (air temp 20-25°C). This assumes you’re using a pool cover. Without a cover, expect 30-40% longer. Remember: heat pumps work best when heating gradually—rushing the process is less efficient.
Q3: Can I use this heat pump with a saltwater pool? Yes, absolutely! The Twisted Tech™ titanium heat exchanger is specifically designed to resist corrosion from salt chlorinators and traditional chlorine systems. The unit is fully compatible with saltwater pools, bromine systems, and all common pool treatments—just ensure chemical dosing occurs after the heat pump in your plumbing circuit.
Q4: How much does it cost to run compared to gas or electric heating? Heat pumps are 5-6 times more efficient than electric resistance heaters and 3-4 times more efficient than gas. For a typical swimming season (May-September), expect running costs of £150-300 with this heat pump, versus £800-1,500 for gas or £1,200-2,000+ for electric heating. Your exact savings depend on usage patterns and electricity rates.
Q5: What does “inverter technology” mean and why does it matter? Traditional heat pumps run at a fixed speed—they’re either fully ON or fully OFF, like a light switch. Inverter technology works like a dimmer switch, continuously adjusting compressor and fan speed to match your pool’s exact heating needs. This delivers:
- 30-35% energy savings over a season
- More stable water temperature (no fluctuations)
- Quieter operation overall
- Longer component lifespan
- Faster initial heat-up
Q6: Will this heat pump work in cold weather? Yes! The SilverLine Top 90 operates down to -15°C ambient temperature, though efficiency decreases as temperatures drop. Expect:
- 15-25°C air temp: Peak performance, full output
- 10-15°C air temp: Good performance, ~70% output
- 5-10°C air temp: Reduced performance, ~50% output
- 0-5°C air temp: Low performance, antifreeze mode may activate
- Below 0°C: Antifreeze protection activates; winterize if prolonged
Q7: How do I control the heat pump remotely with Wi-Fi? The unit has built-in Wi-Fi (2.4GHz networks only). Download the free Poolex app (available for iOS and Android), create an account, and pair your heat pump following the manual instructions. You’ll be able to:
- View current water and ambient temperature
- Adjust target temperature
- Switch between heating/cooling modes
- Select Silent/ECO/Boost intensity
- Set daily/weekly schedules
- Receive alerts and error notifications
- Monitor energy usage (app-dependent features)
Q8: Is professional installation required? Yes, we strongly recommend professional installation. While competent DIYers can handle the hydraulic connections, electrical work must comply with building regulations and should be performed by a qualified electrician. Incorrect installation can void your warranty and create safety hazards. Budget £300-600 for professional installation depending on site complexity.
Q9: How loud is this heat pump? At 36 dB(A) from 10 metres, it’s quieter than:
- Normal conversation (60 dB)
- Refrigerator hum (40 dB)
- Rustling leaves (20 dB)
The vertical fan design directs sound upward, making it even less intrusive. Many users report barely noticing it’s running. Silent mode reduces noise further, though at the cost of slower heating.
Q10: What maintenance does the heat pump require? Minimal! Routine maintenance includes:
- Weekly: Check that intake grille is clear of debris
- Monthly: Clean or backwash pool filter (ensures proper flow)
- Quarterly: Inspect condensate drainage
- Annually: Professional service including:
- Cleaning the evaporator coils
- Checking refrigerant pressure
- Testing electrical connections
- Verifying titanium coil condition
Q11: What’s covered by the warranty?
- 3 years: Complete unit (parts and labour)
- 5 years: Compressor (parts only after year 3)
- 10 years: Titanium heat exchanger (parts only after year 3)
Warranty requires professional installation with proof of annual servicing. Register your unit within 30 days of installation.
Q12: Can this heat pump cool my pool in summer? Yes! The reversible cycle allows cooling mode, which is perfect for:
- Preventing overheating during heat waves (water above 30°C)
- Maintaining comfortable temperatures for competitive swimming (cooler preferred)
- Extending usability when water gets too warm
Cooling capacity: 5.79 kW at 35°C ambient. Cooling is less commonly needed in the UK climate but invaluable during hot summers.
🏊 Ideal Pool Applications
✅ Perfect For:
- Residential swimming pools (40-50m³)
- Above-ground and in-ground pools
- Outdoor pools with covers (maximizes efficiency)
- Families wanting to extend swimming season (April-October)
- Eco-conscious pool owners seeking energy savings
- Noise-sensitive locations (gardens near neighbours)
- Saltwater chlorinator systems
- Pools heated from 18-30°C
⚠️ Not Recommended For:
- Pools larger than 60m³ (consider the Top 120 or Top 150 model instead)
- Indoor pools without adequate ventilation
- Commercial/public pools with constant high usage
- Pools requiring year-round heating in harsh winter climates without supplemental heating
- Installations where electrical supply is insufficient (<12A circuit breaker capacity)
🌟 Key Feature Highlights
🏆 SCOP Class A Efficiency
Seasonal Coefficient of Performance (SCOP) of 7.31 means the unit delivers over 7 units of heat for every 1 unit of electricity consumed across a typical UK swimming season. This exceptional efficiency translates directly to lower running costs and reduced environmental impact.
🔄 Full Inverter Compressor
Unlike fixed-speed compressors that cycle on and off, the GMCC inverter compressor continuously modulates output between 27% and 100% capacity, matching your pool’s precise heating demand moment-by-moment. This results in energy savings, quieter operation, and more stable water temperature.
📱 Smart Wi-Fi Control
No more trips to the garden! The integrated Wi-Fi module connects to your home network (2.4GHz) and pairs with the Poolex app for remote monitoring and control. Set schedules, adjust temperatures, receive alerts, and check status—all from your smartphone or tablet, anywhere with internet access.
🏗️ Vertical Airflow Design
Revolutionary vertical discharge fan reduces the unit’s footprint by up to 30% compared to traditional side-discharge models. The compact 582mm × 515mm base fits into tight spaces while directing airflow upward—ideal for installations against fences or walls, and dramatically reduces noise transmission to living areas.
💎 Titanium Twisted Tech™ Heat Exchanger
The heart of any heat pump is its heat exchanger. Poolex’s proprietary Twisted Tech™ design maximizes heat transfer surface area while the pure titanium construction resists corrosion from chlorine, salt, bromine, and pH fluctuations. Backed by an industry-leading 10-year warranty on parts.
🌬️ Hydrophilic Aluminium Evaporator
Large-surface-area evaporator with hydrophilic coating ensures efficient heat extraction from ambient air, even in high humidity conditions. The coating encourages condensate to sheet off rather than form droplets, maintaining peak thermal efficiency.
🔇 Ultra-Quiet Operation
At just 36 dB(A) from 10 metres distance, you can enjoy peaceful garden relaxation while the heat pump works. Variable-speed inverter technology keeps noise minimal throughout the power range, with dedicated Silent mode for maximum discretion during evening operation.
🌍 Eco-Friendly R32 Refrigerant
R32 has a Global Warming Potential (GWP) of 675—roughly one-third that of older R410A refrigerant. It’s also more energy-efficient, recyclable, and contributes to lower carbon emissions. Better for your conscience and compliant with evolving environmental regulations.
❄️ Operates to -15°C
Extended operating range means you can start heating earlier in spring and continue later into autumn than competitors with higher minimum temperatures. Automatic defrost cycle prevents ice buildup, while antifreeze protection safeguards the unit during unexpectedly cold nights.
🎛️ Multiple Operating Modes
- Heating ECO: Balanced efficiency for daily use
- Heating BOOST: Maximum output for rapid temperature increase
- Heating SILENT: Ultra-quiet operation with reduced output
- Cooling ECO/BOOST/SILENT: Three-tier cooling for hot summer days
- AUTO: Intelligent mode maintains set temperature automatically
⏱️ Programmable Timer
Set weekly schedules via the control panel or app. Program the heat pump to start warming your pool before you wake up, or switch to Silent mode during evening hours. Two independent programmable periods allow complex scheduling to match your lifestyle.
🛡️ Comprehensive Protection Systems
Built-in safety features include:
- High/low pressure switches
- Water flow sensor (prevents dry running)
- Compressor overheat protection
- Antifreeze protection
- Phase loss protection (critical for inverter systems)
- IP24 electrical enclosure
🛡️ Warranty Coverage
Standard Manufacturer Warranties:
3-Year Unit Warranty Covers all parts and manufacturing defects for the complete heat pump system. Includes compressor, control board, fan motor, heat exchangers, and casing. Full parts and labour coverage during this period when professionally installed and maintained.
5-Year Compressor Warranty The GMCC inverter compressor—the most critical component—receives extended coverage. Years 1-3 include parts and labour; years 4-5 cover parts only (labour charges apply).
10-Year Titanium Coil Warranty Exceptional protection for the Twisted Tech™ titanium heat exchanger. Years 1-3 include parts and labour; years 4-10 cover parts only. This demonstrates Poolex’s confidence in their corrosion-resistant design.
⚠️ Warranty Conditions:
- Professional installation required (DIY installations void warranty)
- Unit must be registered within 30 days of installation
- Proof of annual professional servicing required
- Warranty excludes damage from improper water chemistry, freezing, or misuse
- Warranty non-transferable to subsequent property owners
✅ Summary: Is the Poolex SilverLine Top 90 Right For You?
Choose this heat pump if you: ✅ Have a pool between 40-50m³ (up to 50,000 litres) ✅ Want to extend your swimming season from April/May through September/October ✅ Value energy efficiency and want to reduce running costs by 70-80% ✅ Prefer smart home integration with Wi-Fi app control ✅ Need a quiet, neighbour-friendly heating solution ✅ Have limited installation space (vertical design is compact) ✅ Want reliability backed by strong warranties (10 years on heat exchanger) ✅ Use a pool cover to maximize efficiency
Consider alternatives if you: ❌ Have a pool larger than 55m³ (look at the Top 120 or Top 150 models) ❌ Need rapid heating without patience for gradual temperature increase ❌ Live in an area with sustained sub-zero winter temperatures requiring year-round heating ❌ Cannot provide adequate electrical supply (minimum 12A dedicated circuit) ❌ Want an ultra-budget option (initial investment higher than basic heaters, but payback period is 2-3 years through energy savings)
📞 Need Expert Advice?
Not sure if this is the right heat pump for your pool?
Our team can help you:
- Calculate the perfect heat pump size for your specific pool dimensions
- Estimate seasonal running costs based on your location
- Advise on installation requirements and site suitability
- Arrange professional installation in your area
- Answer any technical questions about operation or compatibility
Contact us for personalised recommendations and competitive installation quotes.
🚚 Delivery & Installation Information
Delivery Details:
- Heat pump arrives on wooden pallet via courier
- Kerbside delivery as standard
- Net weight: 54 kg (manageable by 2 people)
- Gross weight including packaging: 65 kg
- Dimensions in packaging: 630 × 570 × 850 mm
Installation Time: Professional installation typically takes 4-6 hours depending on site complexity, including:
- Positioning and securing the unit
- Hydraulic connections and bypass valve installation
- Electrical wiring and circuit breaker installation
- Initial commissioning and settings configuration
- Wi-Fi setup and app pairing
- Handover and operational demonstration
Recommended Installation Add-Ons:
- Bypass valve kit (if not already installed)
- Anti-vibration mounting pads (included, but mounting hardware separate)
- 50mm PVC pipe and fittings
- Flexible PVC connectors (reduce vibration transmission)
- Pool cover (dramatically improves efficiency—highly recommended!)
🌱 Environmental Benefits
Reduce Your Carbon Footprint
Switching from gas or electric heating to a heat pump delivers immediate environmental benefits:
- Carbon Emissions: Approx. 75% reduction compared to electric heaters
- Energy Efficiency: COP of 7+ means minimal primary energy consumption
- Renewable-Friendly: Perfectly complements solar PV systems
- Refrigerant: Low-GWP R32 with minimal environmental impact
- Longevity: 10+ year lifespan reduces manufacturing waste
A heat pump doesn’t just save money—it’s an investment in sustainable swimming.
📐 Dimensions & Clearances
Unit Dimensions:
- Length: 582 mm
- Width: 515 mm
- Height: 775 mm
- Weight (empty): 54 kg
Minimum Clearances Required:
- Front (airflow discharge): 1,000 mm minimum
- Sides: 500 mm minimum each side
- Rear: 500 mm minimum
- Above unit: No obstructions
Recommended Clearances:
- Front: 1,500 mm (improves airflow)
- Sides: 750 mm (easier maintenance access)
Foundation:
- Concrete slab: minimum 150mm thick
- Level tolerance: ±5mm
- Alternative: Paving slabs on compacted sub-base
- Drainage: Must slope away from unit to prevent water pooling
💡 Pro Tips for Maximum Efficiency
🎯 Tip 1: Always Use a Pool Cover A good quality cover reduces heat loss by 70-90% overnight. This single investment can halve your running costs and dramatically reduce heat-up time. Solar covers provide additional passive heating during the day.
🎯 Tip 2: Heat Gradually, Not Rapidly Resist the temptation to use BOOST mode continuously. Heating at ECO setting over 2-3 days is more efficient than trying to raise temperature 10°C in 24 hours. Your wallet will thank you!
🎯 Tip 3: Set Realistic Temperatures Every 1°C increase in target temperature adds approximately 10-15% to running costs. A comfortable 26-28°C is perfect for most swimmers and far more economical than targeting 30°C+.
🎯 Tip 4: Schedule Heating Wisely Use the timer to run the heat pump during the warmest part of the day (afternoon) when air temperature is highest and the heat pump is most efficient. Avoid overnight operation when temperatures drop significantly.
🎯 Tip 5: Maintain Good Water Flow Clean or backwash your pool filter regularly. Poor water flow reduces heat pump efficiency and can trigger flow switch errors. Check flow rate monthly—should be around 3.1 m³/h.
🎯 Tip 6: Service Annually Professional servicing keeps your heat pump operating at peak efficiency. Dirty evaporator coils can reduce performance by 20-30%. Annual service typically costs £80-150 but saves far more in improved efficiency.
🎯 Tip 7: Match Power to Pool Volume This 8.88kW model is sized for 40-50m³ pools. Oversizing wastes money; undersizing leads to frustration. Get sizing right from the start!
🎯 Tip 8: Consider Solar PV Synergy If you have solar panels, program the heat pump to run during peak solar generation (10am-4pm). You can heat your pool with free, renewable energy and dramatically reduce grid electricity consumption.
Transform your pool into a year-round oasis of comfort and relaxation. Order your Poolex SilverLine Top 90 today and start enjoying warmer swimming for less!








