🌊 Poolex SilverLine Fi 150 On/Off Inverter Heat Pump with Wi-Fi – 14.5kW

Transform Your Pool into a Year-Round Paradise with Intelligent Heating

Experience the perfect pool temperature every day with the Poolex SilverLine Fi 150 – a premium Full Inverter heat pump that delivers exceptional energy efficiency, whisper-quiet operation, and smart Wi-Fi control. Designed for pools between 65-80m³, this advanced heating system reduces your electricity consumption by up to 30% while maintaining optimal water temperature from -7°C to 40°C ambient conditions.

🔥 Outstanding Features That Set This Heat Pump Apart

Full Inverter Technology – The Smart Way to Heat Unlike traditional on/off heat pumps, the SilverLine Fi 150 continuously adjusts both compressor and fan speeds to match your exact heating needs. This means smoother operation, dramatically lower running costs, and consistent water temperature without power surges or temperature fluctuations.

Whisper-Quiet Operation – Protect Your Peace At just 23-34 dB(A) at 10 metres, this heat pump is quieter than a library. The innovative Eco Silence mode takes it even further, operating at barely audible levels – perfect for residential areas and noise-sensitive environments. Your neighbours won’t even know it’s running.

Multiple Operating Modes for Every Situation

• Auto Mode – Set it and forget it; the system intelligently manages everything
• Boost Mode – Maximum heating power for rapid temperature rise
• Eco Silence Mode – Ultra-quiet, energy-conscious operation
• Cooling Mode – Yes, it can cool your pool in extreme heat!

Built-in Wi-Fi Control – Manage Your Pool from Anywhere Control your pool temperature from your smartphone using the free Smart Life app (iOS & Android). Adjust settings, monitor performance, and schedule heating cycles from work, home, or holiday. Compatible with Amazon Alexa and Google Home for voice control convenience.

Twisted Tech© Titanium Heat Exchanger The corrosion-resistant titanium coil handles salt water, chlorine, and chemical treatments with ease. Guaranteed against corrosion for 15 years, this advanced heat exchanger delivers faster heat transfer and exceptional durability.

All-Weather Performance Operates effectively in temperatures from -7°C to 43°C, making it suitable for UK weather conditions year-round. The intelligent antifreeze protection system safeguards your investment during winter months.

📄 Downloads & Documentation

Installation & User Manual 📥
Complete installation instructions, operating procedures, Wi-Fi setup guide, troubleshooting, and maintenance schedules. Essential reading for installers and owners. View Manual (opens in new tab)

Technical Specification Sheet 📥
Detailed technical specifications, performance data at various temperatures, dimensions, and comparison charts for all SilverLine Fi models. View Specifications (opens in new tab)

⚙️ Complete Technical Specifications

Specification	Details
Suitable Pool Volume	65 – 80 m³ (17,000 – 21,000 gallons)
Model Reference	PC-SLP 150N
Max Heating Output	14.5 kW
Min Heating Output	2.25 kW
Power Consumption	2.43 kW (at 26°C air/26°C water)
COP (Coefficient of Performance)	5.96 – 16.1
Max Cooling Capacity	6.52 kW
Electrical Supply	230V / 50Hz Single Phase
Maximum Current Draw	14.5 A
Recommended Circuit Breaker	20A (D-Curve)
Cable Size Required	3 x 4mm² RO2V (up to 10m length)
Heating Temperature Range	15°C – 40°C
Operating Ambient Temperature	-7°C – 43°C
Water Flow Rate	5 – 7 m³/h
Water Connections	50mm (1½ inch) PVC fittings
Refrigerant Type	R32 (environmentally friendly)
Refrigerant Charge	0.65 kg
Compressor Brand	Mitsubishi (Premium Quality)
Compressor Type	Hermetic Rotary DC Inverter
Heat Exchanger	Twisted Tech© Titanium
Dimensions (L × W × H)	1104 × 354 × 756 mm
Unit Weight	46.5 kg
Packaging Dimensions	1166 × 424 × 878 mm
Noise Level at 1m	40 – 54 dB(A) (Inverter mode)
Noise Level at 10m	23 – 34 dB(A) (Inverter mode)
Weatherproof Rating	IPX4
Cabinet Material	ABS (Anti-UV treated)
Fan Direction	Horizontal airflow
CE Certified	Yes (RoHS compliant)

Performance at Different Temperatures

Standard Conditions (Air 26°C / Water 26°C / 80% Humidity):

• Heating Power: 2.25 – 14.5 kW
• Power Consumption: 2.43 kW
• COP: 5.96 – 16.1
• Cooling Power (at 35°C air/27°C water): 6.52 kW

Cooler Conditions (Air 15°C / Water 26°C / 70% Humidity):

• Heating Power: 1.8 – 10.5 kW
• Power Consumption: 2.29 kW
• COP: 4.5 – 7.5

Why Choose the SilverLine Fi 150?

Say goodbye to cold pool days and skyrocketing energy bills. The SilverLine Fi 150 combines cutting-edge Full Inverter technology with a COP of up to 16.1, meaning you get 16.1kW of heating power for every 1kW of electricity consumed. That’s genuine energy savings you can measure on your electric bill every month.

Perfect for:

• In-ground pools (65-80m³ / 17,000-21,000 gallons)
• Above-ground pools with proper installation
• Pool owners seeking year-round swimming comfort
• Anyone wanting to slash pool heating costs
• Homeowners who value quiet garden environments

💰 Real-World Pool Heating Performance & Cost Analysis

Estimated Heat-Up Times for Various Pool Sizes

The table below shows estimated times to heat your pool using the SilverLine Fi 150 at different ambient temperatures. These are estimates based on ideal conditions with the pool covered during heating.

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

Pool Volume	Temp Rise	Time at 26°C Air*	Time at 15°C Air**	Time at 10°C Air***
65 m³	5°C → 25°C	26 hours (1.1 days)	36 hours (1.5 days)	48 hours (2 days)
65 m³	8°C → 28°C	41 hours (1.7 days)	57 hours (2.4 days)	77 hours (3.2 days)
75 m³	5°C → 25°C	30 hours (1.3 days)	42 hours (1.8 days)	56 hours (2.3 days)
75 m³	8°C → 28°C	48 hours (2 days)	66 hours (2.8 days)	89 hours (3.7 days)
80 m³	5°C → 25°C	32 hours (1.3 days)	44 hours (1.8 days)	59 hours (2.5 days)
80 m³	8°C → 28°C	51 hours (2.1 days)	71 hours (3 days)	95 hours (4 days)

*Using 14.5kW output | **Using 10.5kW output | ***Using 8kW estimated output

⚠️ Important Notes:

• These times assume your pool is covered with a bubble cover during heating
• Uncovered pools lose up to 80% of heat through evaporation and will take significantly longer
• Wind, rainfall, and humidity affect heating times substantially
• Actual performance varies with weather conditions and pool insulation
• For best results: use a solar cover, heat during warmer parts of the day, and maintain good pool insulation

Running Cost Comparison

Typical Daily Running Costs (based on UK electricity at £0.24 per kWh):

Scenario	Daily Cost (Approx.)	Monthly Cost
Maintaining Temperature (2-4 hours/day average in mild weather)	£1.17 – £2.33	£35 – £70
Initial Heat-Up (8-12 hours/day)	£4.66 – £7.00	–
Cool Weather Operation (6-8 hours/day)	£3.50 – £4.66	£105 – £140

Vs. Traditional Electric Heater: Save up to 70-80% on running costs compared to direct electric pool heaters!

📦 What’s Included in the Box

✅ Poolex SilverLine Fi 150 Heat Pump Unit
✅ 2 × 50mm (1½”) Hydraulic Connectors
✅ 10m Remote Control Extension Cable
✅ Condensation Drainage Kit
✅ Winter Storage Cover (Isothermal)
✅ 4 × Anti-Vibration Rubber Feet
✅ Complete Installation & User Manual
✅ Warranty Registration Card

🔧 Installation & Placement Guidelines

Electrical Requirements

IMPORTANT: Installation must be carried out by a qualified electrician in accordance with current regulations.

• Power Supply: 230V / 50Hz Single Phase
• Circuit Breaker: 20A D-Curve MCB (mandatory)
• RCD Protection: 30mA Differential Switch (upstream)
• Cable: 3 × 4mm² RO2V outdoor-rated cable (for runs up to 10m)
• Earth Connection: Must be properly earthed to local regulations
• Servo-Control Option: Can control your filter pump (up to 5A/1000W direct; use relay for larger pumps)

Placement & Clearance Requirements

Minimum Clearances:

• Front: 2500mm (nothing in front of the air outlet)
• Sides: 500mm clear space each side
• Rear: 500mm clear space
• Above: No obstructions

Installation Surface:

• Level concrete base or paving slabs
• Must support 46.5kg weight
• Use supplied anti-vibration feet for noise reduction
• Ensure adequate drainage for condensation water
• Position 10cm above ground using sturdy pads (optional but recommended)

Location Considerations: ✅ Position away from bedroom windows (yours and neighbours’)
✅ Avoid direct exposure to strong winds
✅ Keep away from flammable materials
✅ Ensure good air circulation around the unit
✅ Install outdoors only (not in enclosed spaces)
✅ Position where service access is convenient
✅ Keep away from oil, corrosive chemicals, or high-frequency equipment

Hydraulic Connection

By-Pass Kit Required: A proper 3-valve By-Pass assembly is essential for:

• Flow rate regulation (5-7 m³/h required)
• Isolation during maintenance
• Optimising heat pump performance
• Winterisation

Installation Sequence: Pool → Filter → By-Pass Assembly → Heat Pump → Chemical Treatment System → Return to Pool

Important: Never install chemical dosing equipment (chlorinators, metering pumps) before the heat pump – always position them downstream to prevent corrosion.

🌡️ Smart Pool Sizing Guide

Is the Fi 150 Right for Your Pool?

Pool Volume	Pool Size (Approx.)	Recommendation
Under 65m³	Up to 8m × 4m × 2m deep	✅ Suitable – May heat faster than needed
65 – 80m³	8-9m × 4-5m × 2m deep	✅ Ideal Match – Perfectly sized
80 – 90m³	9-10m × 4-5m × 2m deep	⚠️ Will work but slightly undersized for rapid heating
Over 90m³	Larger than 10m × 5m	❌ Consider the SilverLine Fi 200 (19.2kW)

Quick Volume Calculator:
Pool Volume (m³) = Length (m) × Width (m) × Average Depth (m)

Example: 8m × 4m × 1.5m = 48m³

💡 Energy Efficiency & Environmental Benefits

Understanding COP (Coefficient of Performance)

The SilverLine Fi 150 achieves a COP of up to 16.1 under optimal conditions (26°C air, 26°C water). This means:

For every 1kW of electricity consumed, you receive 16.1kW of heating power.

Typical Seasonal Performance:

• Spring/Autumn (15°C air): COP 4.5 – 7.5
• Summer (26°C+ air): COP 6 – 16.1
• Mild Winter (5-10°C air): COP 3 – 5

Environmental Credentials:

• Uses R32 refrigerant – low GWP (Global Warming Potential)
• Renewable energy source (extracts heat from ambient air)
• Significantly lower carbon footprint than gas or electric heaters
• Energy efficiency reduces grid demand

❓ Frequently Asked Questions

Q: How long does it take to heat my pool from cold?
A: For a 70m³ pool with a 10°C temperature rise, expect 2-4 days depending on weather conditions and whether you use a pool cover. The heat pump works gradually – it’s not instant heating, but the running costs are dramatically lower than alternatives.

Q: Can I use this heat pump with a saltwater pool?
A: Yes, absolutely! The Twisted Tech© Titanium heat exchanger is specifically designed to resist corrosion from salt chlorination systems. The titanium coil is guaranteed against corrosion for 15 years.

Q: How much does it cost to run per day?
A: Once your pool reaches temperature, typical maintenance costs £1-£3 per day (2-4 hours operation) depending on weather. Initial heating costs more but is still far cheaper than electric or gas heating.

Q: Is this heat pump really quiet?
A: Yes! At 10 metres distance, it operates at just 23-34 dB(A) – quieter than a whisper. In Eco Silence mode, it’s virtually inaudible. Perfect for residential gardens and noise-sensitive areas.

Q: Do I need to remove it in winter?
A: No, it can stay outdoors year-round. Use the supplied winter cover when not in use. The unit has built-in antifreeze protection that activates automatically when temperatures approach freezing (requires mains power to be connected).

Q: Can this heat pump also cool my pool?
A: Yes! The SilverLine Fi 150 includes a cooling mode that can reduce water temperature by extracting heat. Useful during extreme summer heat waves when water temperatures exceed 28-30°C.

Q: What’s the difference between Full Inverter and regular on/off heat pumps?
A: Full Inverter technology continuously adjusts compressor and fan speeds to match demand, whereas on/off models simply turn on/off. Benefits include: 30% lower running costs, quieter operation, faster heating, longer component life, and no power surges.

Q: How do I control it via Wi-Fi?
A: Download the free Smart Life app (iOS/Android), connect the heat pump to your home Wi-Fi network (2.4GHz), and control everything from your smartphone. Set schedules, adjust temperature, and receive operational alerts remotely.

Q: Will my pool cover make a difference?
A: Huge difference! An uncovered pool loses up to 80% of heat through evaporation. A simple bubble cover can halve your heating times and running costs. We strongly recommend using a pool cover whenever the pool isn’t in use.

Q: What warranty does this come with?
A: The complete unit has a 2-year warranty. The Mitsubishi compressor is guaranteed for 5 years, and the titanium heat exchanger has a 15-year corrosion warranty. All warranties require professional installation and regular maintenance.

Q: Can I install this myself?
A: The hydraulic connections can be done by a competent DIYer with plumbing experience, but electrical installation must be performed by a qualified electrician to comply with regulations and maintain warranty coverage.

Q: What size circuit breaker do I need?
A: A 20A D-Curve MCB (miniature circuit breaker) on a dedicated circuit, protected by a 30mA RCD. Cable size: 3 × 4mm² RO2V for cable runs up to 10 metres.

Q: Does it work in cold weather?
A: Yes, the SilverLine Fi 150 operates effectively down to -7°C ambient temperature, though heating capacity reduces as temperatures drop. Below 5°C, expect longer heating times and higher running costs.

🛡️ Comprehensive Warranty Coverage

Heat Pump Unit: 2 Years Full Warranty
Mitsubishi Compressor: 5 Years Warranty
Titanium Heat Exchanger: 15 Years Against Corrosion

Warranty Conditions:

• Requires professional installation by qualified personnel
• Must be installed according to manufacturer’s instructions
• Regular maintenance required as per schedule
• Does not cover frost damage if winterisation procedures not followed
• Excludes damage from improper water chemistry or unauthorised repairs

🔒 Safe Installation & Usage

Critical Safety Information:

⚠️ R32 Refrigerant Safety
This heat pump contains R32 refrigerant, which is flammable. Only qualified refrigeration engineers may work on the refrigerant circuit. Never attempt to repair refrigerant components yourself.

⚠️ Electrical Safety

• Must be installed by a qualified electrician
• Requires proper earthing to prevent electric shock
• Never operate with damaged cables or connections
• Always disconnect power before maintenance

⚠️ Child Safety

• Keep children away from the unit during operation
• Never allow children to play near the fan or heat exchanger
• The exterior can become hot during operation

⚠️ Water Chemistry

• Maintain pH between 6.9 – 8.0 to prevent corrosion
• Install chemical treatment systems downstream of the heat pump
• Never run the heat pump with improper water chemistry

✅ Why Buy the SilverLine Fi 150 from Parts4Tubs?

🚚 Fast UK Delivery – Quick dispatch on in-stock items
💷 Competitive Pricing – Best value for premium pool heating
🛠️ Expert Advice – Knowledgeable team ready to help
📋 Full Warranty Support – UK-based warranty assistance
📦 Complete Package – Everything included for installation
🔐 Genuine Poolex Product – Authorised retailer
⭐ Customer Satisfaction – Trusted by UK pool owners

Transform your pool into a year-round oasis. Order your Poolex SilverLine Fi 150 today and start enjoying perfectly heated pool water while saving money on your energy bills!