🌊 Norsup Silent-Pro 13 Inverter Heat Pump | 13kW Ultra-Quiet Pool Heating with Wi-Fi & SmartGrid
Transform your pool experience with whisper-quiet, intelligent heating technology. The Norsup SG Silent-Pro 13 delivers powerful 13kW heating capacity while operating at an incredibly quiet 19dB at 10 meters—quieter than a library. Perfect for residential pools up to 70m³, this premium heat pump combines cutting-edge inverter technology, SmartGrid compatibility, and convenient Wi-Fi control for year-round swimming comfort.
Ultimate Peace & Quiet 🔇 At just 19-28.5 dB(A) at 10 meters, this is one of the quietest pool heat pumps available. The innovative horizontal double-side airflow design ensures your relaxation isn’t disturbed.
Intelligent Energy Efficiency ⚡ Full inverter technology automatically adjusts heating output based on ambient conditions, delivering exceptional COP up to 16.5. That means £16.50 of heat for every £1 of electricity—dramatically reducing your running costs.
Year-Round Performance ❄️ Unlike conventional heat pumps, the Silent-Pro 13 operates effectively in temperatures as low as -15°C, extending your swimming season and ensuring reliable heating even in challenging weather.
Smart Control 📱 Integrated Wi-Fi module lets you monitor and adjust your pool temperature remotely via the NorsupOne app. Set schedules, activate silent mode, and check performance—all from your smartphone.
Future-Ready Technology 🌍 SmartGrid compatible for integration with renewable energy systems and smart home automation. Optimize energy usage based on electricity tariffs and solar generation.
🎯 Top Features at a Glance
✅ Full Inverter Technology – Continuously variable heating capacity (2.4-13kW) adapts to conditions for maximum efficiency
✅ Ultra-Silent Operation – Revolutionary 19-28.5dB noise at 10m distance with horizontal double-airflow design
✅ Premium Mitsubishi Compressor – Industry-leading reliability and performance from Japanese engineering
✅ Titanium Twisted Heat Exchanger – Exceptional corrosion resistance to salt and chlorine with optimized heat transfer
✅ Eco-Friendly R32 Refrigerant – 3× lower Global Warming Potential than R410A, better efficiency, smaller charge
✅ Integrated Wi-Fi Control – Monitor and control remotely via NorsupOne app (iOS & Android)
✅ SmartGrid Ready – Connect to external signals for optimized power usage and renewable energy integration
✅ Three Operating Modes – Power (maximum output), Smart (balanced), Silent (whisper-quiet) modes
✅ All-Season Capability – Operates down to -15°C ambient temperature
✅ Automatic Functions – Auto heating, cooling, and defrost eliminate manual intervention
✅ Full-Color Touch Screen – Intuitive interface with clear temperature display and easy navigation
✅ Soft Start Function – Prevents voltage spikes to protect your electrical system
✅ Premium Black Aluminium Cabinet – Stylish, durable, weather-resistant horizontal design
✅ Winter Cover Included – Protect your investment during off-season storage
✅ Outstanding Warranty – 5 years on heat pump, 10 years on compressor & heat exchanger
🏊 Perfect for Your Pool Size
The Silent-Pro 13 is ideally suited for residential swimming pools with volumes between 40-70 m³ (approximately 40,000-70,000 liters).
Common Pool Sizes Compatible with SP13:
| Pool Dimensions | Volume | Suitability |
|---|---|---|
| 8m × 4m × 1.5m | 48 m³ | ✅ Ideal Match |
| 9m × 4m × 1.5m | 54 m³ | ✅ Ideal Match |
| 10m × 4m × 1.5m | 60 m³ | ✅ Ideal Match |
| 10m × 5m × 1.5m | 75 m³ | ⚠️ Consider SP17 |
| 6m × 3m × 1.5m | 27 m³ | ⚠️ Consider SP10 |
💡 Sizing Tip: Calculate your pool volume as Length × Width × Average Depth (in meters). For irregular shapes, use approximate rectangular dimensions. Proper sizing ensures efficient operation and faster heat-up times.
⏱ Heat-Up Time Estimates
Get realistic expectations for heating your pool with our calculated heat-up times. These estimates use the formula: Time (hours) = (Pool Volume m³ × Temperature Rise °C × 1.16) ÷ Heat Pump kW Rating
Heat-Up Times Using A15/W25 Capacity (9.1kW typical spring/autumn conditions)
| Pool Volume | 5°C Rise | 10°C Rise | 15°C Rise |
|---|---|---|---|
| 40 m³ | 25.5 hours | 51 hours | 76.5 hours |
| 50 m³ | 32 hours | 64 hours | 96 hours |
| 60 m³ | 38 hours | 76.5 hours | 115 hours |
| 70 m³ | 44.5 hours | 89 hours | 134 hours |
Heat-Up Times Using A27/W27 Capacity (13kW peak summer conditions)
| Pool Volume | 5°C Rise | 10°C Rise | 15°C Rise |
|---|---|---|---|
| 40 m³ | 18 hours | 36 hours | 54 hours |
| 50 m³ | 22.5 hours | 45 hours | 67 hours |
| 60 m³ | 27 hours | 54 hours | 80 hours |
| 70 m³ | 31 hours | 62 hours | 93 hours |
⚠️ Important Heat-Up Time Disclaimers:
- These are theoretical estimates under controlled conditions
- Actual times vary based on: ambient temperature, wind, humidity, pool insulation, cover usage
- Times assume continuous 24-hour operation
- Using a pool cover can reduce heat-up times by 30-50%
- Well-insulated pools heat significantly faster
- Initial heat-up from cold takes longer; maintaining temperature requires much less energy
💰 Cost-Effective Tip: Heat your pool gradually over 2-3 days rather than trying to rush it. This allows the heat pump to operate at peak efficiency and costs less overall.
📊 Complete Technical Specifications
Heating Performance Data
| Specification | Value |
|---|---|
| Part Number | 7036141 |
| Heating Capacity A27/W27 (max-min) | 2.4 – 13.0 kW / 8,189 – 44,358 Btu/h |
| Power Input A27/W27 (max-min) | 0.145 – 1.96 kW |
| COP at A27/W27 | 16.5 – 6.6 |
| Heating Capacity A15/W25 (max-min) | 1.6 – 9.1 kW / 5,459 – 31,050 Btu/h |
| Power Input A15/W25 (max-min) | 0.238 – 1.89 kW |
| COP at A15/W25 | 6.7 – 4.8 |
| Heating Capacity A10/W25 (max-min) | 1.21 – 6.96 kW / 4,129 – 23,745 Btu/h |
| Power Input A10/W25 (max-min) | 0.23 – 1.87 kW |
| COP at A10/W25 | 5.25 – 3.72 |
| Heating Capacity A5/W25 (max-min) | 0.99 – 5.54 kW |
| Heating Capacity A0°C/W25 (max-min) | 0.79 – 4.21 kW |
| Heating Capacity A-5°C/W25 (max-min) | 0.76 – 4.10 kW |
| Power Input A-5°C/W25 (max-min) | 0.22 – 1.86 kW |
| COP at A-5/W25 | 2.89 – 2.01 |
Electrical Specifications
| Specification | Value |
|---|---|
| Power Supply | 220-240V / 1Ph / 50Hz |
| Rated Current | 10.3 A |
| Minimum Fuse Required | 25 A |
| Energy Label | A |
Core Components
| Component | Specification |
|---|---|
| Compressor Type | Rotary Inverter |
| Compressor Brand | Mitsubishi |
| Heat Exchanger | Twist-titanium tube in PVC housing |
| Refrigerant Type | R32 (GWP 675) |
| Refrigerant Charge | Eco-friendly, 3× lower GWP than R410A |
Airflow & Acoustics
| Specification | Value |
|---|---|
| Fan Quantity | 1 |
| Fan Direction | Horizontal (double-side airflow) |
| Fan Speed Range | 400 – 800 rpm (variable) |
| Fan Power Input | 40 W |
| Noise Level at 1m | 37 – 47 dB(A) |
| Noise Level at 10m | 19 – 28.5 dB(A) ⭐ |
Water System
| Specification | Value |
|---|---|
| Water Connection | 50 mm |
| Nominal Flow Volume | 4.1 m³/h |
| Maximum Water Pressure Drop | 4 kPa |
| Recommended Pool Volume | 40 – 70 m³ |
Smart Features & Control
| Feature | Details |
|---|---|
| Control Interface | Full-color touch screen |
| Wi-Fi Module | Included (integrated) |
| Operating Modes | Power / Smart / Silent |
| SmartGrid Compatibility | Yes (external signal input) |
| Defrost Function | Automatic |
| Remote Control | Via NorsupOne app (iOS & Android) |
Physical Specifications
| Specification | Value |
|---|---|
| Cabinet Material | Aluminium (black powder-coated finish) |
| Cabinet Style | Horizontal design |
| Net Dimensions (L×W×H) | 1000 × 430 × 622 mm |
| Net Weight | See nameplate (approx. 70-75 kg) |
| Winter Cover | Included |
Operating Conditions
| Parameter | Range |
|---|---|
| Ambient Temperature Range | -15°C to +43°C |
| Water Temperature Range | 9°C to 40°C |
| Optimal Ambient Temp | 15°C to 35°C |
Warranty Coverage
| Component | Warranty Period |
|---|---|
| Heat Pump Unit | 5 years |
| Compressor | 10 years |
| Heat Exchanger | 10 years |
📄 Downloads & Technical Documentation
Get the most from your Silent-Pro 13 with our comprehensive documentation:
📥 Installation & User Manual (opens in new tab) Complete installation guide with electrical wiring diagrams, plumbing instructions, maintenance schedules, and troubleshooting for SP13 model. Includes multi-language support (EN/DE/FR/NL/DK/SV).
📥 Wi-Fi Controller Manual (opens in new tab) Step-by-step Wi-Fi setup, NorsupOne app configuration, remote control features, timer programming, and silent mode settings. Essential for getting your smart features working.
📥 Technical Datasheet – All Models (opens in new tab) Detailed technical specifications comparing SP10, SP13, SP17, SP20, SP28, SP28T, and SP35T models. Perfect for comparing different capacities and choosing the right model for your pool.
💰 Running Cost Comparison
See how the Silent-Pro 13’s exceptional efficiency translates to real savings:
Annual Running Cost Estimates (8-Month Season)
Based on heating a 50m³ pool with 8-hour daily operation at 15°C ambient temperature:
| Heating Method | Daily kWh | Daily Cost* | Annual Cost* | Annual Savings vs Gas |
|---|---|---|---|---|
| Silent-Pro 13 (COP 6.7) | 12.4 kWh | £3.72 | £892 | £2,108 |
| Gas Heater (80% efficient) | 104 kWh | £12.50 | £3,000 | – |
| Standard Heat Pump (COP 4) | 20.8 kWh | £6.24 | £1,498 | £1,502 |
| Electric Resistance | 83 kWh | £24.90 | £5,976 | £5,084 |
*Based on electricity at £0.30/kWh and gas at £0.12/kWh. Actual costs vary by location, usage patterns, and tariffs.
💡 Investment Payback: Compared to gas heating, the Silent-Pro 13 can pay for itself in energy savings within 2-3 seasons, while providing superior comfort and control.
🌡 Seasonal Performance Expectations
Understand how the Silent-Pro 13 performs throughout the year:
Spring (March-May) | Ambient 10-15°C
- Heating Capacity: 6-9 kW
- COP: 4.8-6.7
- Performance: Excellent for early season heat-up
- Typical Use: Initial pool warming, overnight temperature maintenance
Summer (June-August) | Ambient 20-30°C
- Heating Capacity: 10-13 kW
- COP: 8-16.5
- Performance: Peak efficiency, rapid heating
- Typical Use: Quick heat-up, cooling function available if needed
Autumn (September-November) | Ambient 5-15°C
- Heating Capacity: 5-9 kW
- COP: 3.7-6.7
- Performance: Very good, extended season swimming
- Typical Use: Maintaining comfortable temperatures, occasional boost heating
Winter Operation | Ambient -5 to 5°C
- Heating Capacity: 4-5.5 kW
- COP: 2-4.5
- Performance: Continues operating when others shut down
- Typical Use: Indoor pools, spa pools, winter swimming enthusiasts
❄️ All-Season Advantage: The Silent-Pro 13’s ability to operate down to -15°C means you can extend your swimming season by 2-3 months compared to standard heat pumps that stop at 5-10°C.
🔧 Installation Requirements & Clearances
Ensure optimal performance with proper installation spacing:
Minimum Clearance Requirements

⚠️ Critical Installation Notes:
✅ DO:
- Install on a firm, level concrete pad or mounting frame
- Position where airflow is unrestricted
- Locate within 7.5m of pool for minimal heat loss
- Ensure good drainage around the unit
- Protect from direct, prolonged sun exposure if possible
- Install condensation drain with 20mm tubing
- Use appropriate cable sizing (2.5mm² minimum for 10.3A)
❌ DON’T:
- Install in an enclosed space where discharge air recirculates
- Block air inlets or outlets with plants, fences, or structures
- Install directly on soft ground without a proper base
- Locate where discharged cool air affects living spaces
- Position under dripping eaves or areas prone to flooding
Electrical Requirements
- Dedicated 25A circuit breaker (Type B or C curve)
- 30mA RCD protection required
- All-pole isolation switch within sight of unit
- Earth bonding essential for safety
- Professional electrician installation recommended
🛠 What’s Included in the Box
Your Silent-Pro 13 package includes everything for professional installation:
✅ Main heat pump unit (pre-gassed with R32 refrigerant) ✅ Full-color touch screen controller with cable ✅ Integrated Wi-Fi module (pre-installed) ✅ Winter storage cover ✅ Installation manual (multi-language) ✅ Wi-Fi controller manual ✅ Technical datasheet ✅ 50mm water connection fittings ✅ Condensation drain fitting ✅ Warranty registration card
Not Included (typically supplied by installer):
- Electrical supply cable and circuit protection
- Plumbing pipework and fittings
- Bypass valve (recommended)
- Pool cover (highly recommended for efficiency)
- Concrete mounting pad
❓ Frequently Asked Questions
General Operation
Q: How quiet is the Silent-Pro 13 really? A: At 10 meters distance, it operates between 19-28.5 dB(A), which is quieter than a whisper (30dB) or a library (40dB). The horizontal double-airflow design disperses sound over a wider area, making it virtually unnoticeable in most residential settings. Many customers report they can’t hear it running from inside their homes.
Q: Can I run this heat pump year-round in the UK climate? A: Absolutely! The Silent-Pro 13 operates effectively down to -15°C ambient temperature. In the UK, this means you can extend your swimming season from April through October comfortably, and even maintain winter swimming or indoor pools without issues. The inverter technology automatically adapts output to match changing weather conditions.
Q: How long does it take to heat my pool from cold? A: For a typical 50m³ pool, expect 45-64 hours for a 10°C temperature rise under normal spring conditions (15°C ambient). However, this assumes continuous operation. In practice, many users heat gradually over 3-4 days. Using a solar cover can cut heat-up time by 30-50% and dramatically reduce running costs.
Q: What is COP and why does it matter? A: COP (Coefficient of Performance) measures efficiency. A COP of 6.7 means you get £6.70 worth of heat for every £1 of electricity used. The Silent-Pro 13’s inverter technology delivers COP up to 16.5 in ideal conditions, making it one of the most efficient pool heating solutions available—far exceeding gas heaters and electric resistance heaters.
Installation & Compatibility
Q: Do I need special plumbing or electrical work? A: The heat pump requires standard 50mm PVC plumbing (common in UK pool installations) and a dedicated 25A electrical circuit with RCD protection. Most qualified pool installers or electricians can handle this easily. The unit comes with connection fittings and detailed installation diagrams in the manual.
Q: Can I install this myself? A: While physically possible, we strongly recommend professional installation by a qualified pool engineer or heating specialist. Incorrect installation can void your warranty, create safety hazards, and reduce efficiency. Professional installation typically takes 4-6 hours and ensures everything is optimized.
Q: Will this work with my existing pool pump and filter? A: Yes, in most cases. The Silent-Pro 13 requires a minimum flow rate of 4.1m³/h, which most standard pool pumps easily provide. It connects in-line after your filter and before any chemical dosing systems. A bypass valve (not included) is recommended for future maintenance access.
Q: Do I need to upgrade my electrical panel? A: Probably not. The 10.3A draw is modest for a heat pump of this capacity. You’ll need a spare 25A breaker slot and appropriate cable sizing. Check with your electrician, but most modern UK consumer units have sufficient capacity.
Smart Features & Control
Q: How do I control the Wi-Fi features? A: Download the free NorsupOne app (iOS or Android) and follow the simple setup in the included Wi-Fi controller manual. The app lets you monitor temperature, change settings, set schedules, activate silent mode, and view operating history—all from your smartphone, anywhere in the world.
Q: What is SmartGrid and do I need it? A: SmartGrid is an input that allows external systems (like home automation, solar controllers, or smart meters) to signal the heat pump to optimize its operation. For example, it can prioritize heating when your solar panels are generating excess power. It’s optional but increasingly valuable as renewable energy becomes more common.
Q: Can I control heating schedules automatically? A: Yes! The built-in timer function and app both allow you to set on/off schedules and silent mode periods. Many users program heating during off-peak electricity hours or when they’re at work, so the pool is perfect when they get home.
Maintenance & Reliability
Q: How much maintenance does this heat pump need? A: Very little! Monthly: Check and clean the air inlet grill if dusty. Seasonally: Check water flow, inspect electrical connections, verify refrigerant pressure (by technician). Annually: Professional service recommended. The titanium heat exchanger and quality components minimize maintenance needs.
Q: What if something goes wrong? A: The Silent-Pro 13 has comprehensive self-diagnostics displayed on the screen and app. Most issues are detected and resolved automatically. For any faults, the unit displays clear error codes with explanations in the manual. You’re also covered by a robust 5-year warranty (10 years on compressor and heat exchanger).
Q: Is the R32 refrigerant safe? A: Yes. R32 is classified as an A2L refrigerant (low toxicity, lower flammability). It’s extensively tested and used in millions of heat pumps worldwide. The sealed system design means you’ll never need to handle the refrigerant yourself. Only qualified technicians should service the refrigerant circuit.
Costs & Savings
Q: What will this cost me to run? A: For a typical 50m³ pool heated 6 hours daily from May-September at UK electricity prices (£0.30/kWh), expect roughly £70-100 per month, or £400-600 for the season. This is 60-70% less than gas heating and 80% less than electric resistance heating. Using a pool cover can cut this by another 30-50%.
Q: How long will it take to pay for itself? A: Compared to gas heating, the energy savings alone can recover the cost within 2-3 seasons. Compared to electric heating, payback is typically within one season. Factor in the extended swimming season and increased property value, and the return on investment is compelling.
Q: Will this work with my solar panels? A: Absolutely—and it’s a perfect match! Heat pumps are ideal for solar-powered homes because they draw relatively low power compared to the heat they produce. The SmartGrid input can integrate with solar controllers to maximize self-consumption of your generated electricity.
Product Comparison
Q: How does this compare to the SP10 or SP17 models? A: The SP10 (9.5kW max) suits smaller pools (30-55m³), while the SP17 (17.8kW max) handles larger pools (50-85m³). The SP13 is the sweet spot for most residential pools (40-70m³). All share the same inverter technology, quiet operation, and smart features—the main difference is heating capacity and pool size suitability.
Q: Why choose this over a standard (non-inverter) heat pump? A: Inverter technology provides: (1) Better efficiency (up to 40% savings), (2) Much quieter operation, (3) Faster, more stable temperature control, (4) Longer equipment life due to soft starting, (5) Better performance in low temperatures. The small price premium pays for itself quickly in energy savings.
Q: Silent-Pro vs. standard Norsup heat pumps? A: The Silent-Pro series features horizontal airflow design for reduced noise, premium black aluminium aesthetics, enhanced inverter efficiency, and integrated Wi-Fi as standard. Standard models are vertical airflow with slightly higher noise levels and may have Wi-Fi as an option. Choose Silent-Pro for close-to-home installations where quiet matters.
🏆 Benefits Summary
For You (The Pool Owner)
💤 Peace & Tranquility – Enjoy your pool and garden without intrusive noise 💷 Lower Running Costs – Up to 70% savings vs. gas heating 🗓 Extended Season – Swim comfortably from April to October (or year-round) 📱 Modern Convenience – Control everything from your smartphone 🌍 Eco-Conscious – Minimal environmental impact with R32 and high efficiency 🏠 Property Value – Premium heating system increases home desirability
For Your Pool
🌡 Stable Temperature – Inverter technology maintains precise, consistent warmth ⚡ Fast Heat-Up – Up to 13kW capacity heats your pool quickly 💧 Equipment Protection – Titanium heat exchanger resists corrosion for decades 🔄 Reliable Operation – Mitsubishi compressor ensures dependable performance ❄️ Year-Round Capability – Operates when others shut down
For the Environment
♻️ Renewable Energy Ready – SmartGrid and solar compatible 🌱 Low Carbon Footprint – Dramatically lower CO2 vs. gas heating 🌊 Eco-Friendly Refrigerant – R32 has 3× lower GWP than older refrigerants ⚡ Peak Efficiency – COP up to 16.5 means minimal electrical waste
🎖 Warranty & Support
Comprehensive Coverage
5-Year Warranty on complete heat pump unit 10-Year Warranty on Mitsubishi compressor 10-Year Warranty on titanium heat exchanger
What’s Covered
✅ Manufacturing defects in materials and workmanship ✅ Component failures under normal use ✅ Compressor and heat exchanger for full 10 years ✅ Technical support and troubleshooting assistance
Registration
Register your warranty online within 30 days of installation for full coverage. Keep your proof of purchase and installation certificate.
Professional Support
Access to Norsup’s technical support team and network of authorized service centers throughout the UK and Europe. Comprehensive fault diagnostics via the app and touch screen help identify issues quickly.
🚚 Delivery & Installation
What to Expect
Delivery: Units are carefully packaged and typically delivered within 5-10 working days to UK addresses. Courier will contact you to arrange delivery.
Installation Time: Professional installation typically takes 4-6 hours depending on site conditions and plumbing/electrical preparation.
Commissioning: Your installer will fill the system, check all connections, program settings, and demonstrate operation and app setup.
Installation Checklist
Before your installer arrives, ensure:
- Concrete pad prepared (level, minimum 1100mm × 500mm)
- Electrical supply route planned (within 5m of consumer unit ideal)
- Pool pump location accessible for plumbing
- Clear access for delivery (unit weighs approx. 70-75kg)
- Wi-Fi network password available for setup
📞 Need Help Choosing?
Not sure if the Silent-Pro 13 is right for your pool?
Consider these factors:
- Pool volume 40-70m³? ✅ Perfect match
- Pool volume 30-40m³? Consider the SP10 (9.5kW)
- Pool volume 70-85m³? Consider the SP17 (17.8kW)
- Pool volume over 85m³? Consider the SP20 (20kW) or larger
Still have questions? Contact our technical team for personalized advice on sizing, installation, and optimization for your specific pool and climate.
✨ Final Thoughts
The Norsup Silent-Pro 13 represents the pinnacle of residential pool heating technology. By combining whisper-quiet operation, exceptional efficiency, intelligent controls, and all-season capability, it transforms pool ownership from a costly luxury into an affordable, enjoyable year-round pleasure.
Whether you’re extending your swimming season, reducing heating costs, or simply seeking the most advanced pool heating solution available, the Silent-Pro 13 delivers on every front.
Invest in comfort. Invest in efficiency. Invest in quality.
🛒 Ready to Order?
Part Number: 7036141 Model: Norsup SG Silent-Pro 13 Suitable for: 40-70m³ pools Warranty: 5 years unit / 10 years compressor & heat exchanger
Add to basket now and enjoy whisper-quiet, efficient pool heating for years to come.




