Spawer Ice Spa 7kW Inverter Heat Pump – Extreme Cold Weather Performance Down to -25°C 🔥❄️
Transform your spa experience with year-round comfort, even in freezing conditions. Save up to 75% on heating costs with advanced Full Inverter technology.
If you’ve ever struggled to keep your hot tub warm during winter months, or watched your electricity bills soar from running electric heaters, the Spawer Ice Spa 7kW is your solution. This isn’t just another heat pump – it’s specifically engineered for extreme climates and delivers exceptional performance when temperatures plummet.
Perfect for:
- Hot tubs and spas (indoor and outdoor)
- Swim spas requiring year-round heating
- Nordic baths in cold climates
- Holiday homes in mountainous regions
- Anyone tired of astronomical heating bills
Key Benefits at a Glance ✅
🌡️ Extreme Weather Ready – Works efficiently down to -25°C thanks to EVI (Enhanced Vapour Injection) technology
💰 Massive Energy Savings – Up to 75% less electricity than traditional electric heaters
🔇 Whisper Quiet – Only 28 dB(A) at 10 meters – quieter than a whisper
📱 WiFi Smart Control – Adjust temperature and settings from anywhere via smartphone app
🔄 Reversible Heating & Cooling – Keep water perfect in summer heat and winter cold
⚡ Plug & Play Installation – Simple setup with included differential circuit breaker
🛡️ Built to Last – Titanium heat exchanger with 15-year corrosion warranty
Real-World Performance: What to Expect ⏱️
Understanding how quickly your spa will heat up helps you plan the perfect bath. Here’s what you can expect with the Spawer Ice Spa 7kW:
Heat-Up Time Estimates
These are approximate calculations based on the heat pump’s output rating and standard formulas. Actual times may vary based on ambient temperature, insulation quality, and starting water temperature.
Formula used: Time (hours) = (Volume in m³ × Temperature Rise °C × 1.16) ÷ Heat Pump kW
| Spa Volume | Temperature Rise | Estimated Heat-Up Time |
|---|---|---|
| 1,000 L (1 m³) | 10°C rise | 1.7 hours |
| 1,000 L (1 m³) | 20°C rise | 3.3 hours |
| 1,500 L (1.5 m³) | 10°C rise | 2.5 hours |
| 1,500 L (1.5 m³) | 20°C rise | 5.0 hours |
| 2,000 L (2 m³) | 10°C rise | 3.3 hours |
| 2,000 L (2 m³) | 20°C rise | 6.6 hours |
| 3,000 L (3 m³) | 10°C rise | 5.0 hours |
| 3,000 L (3 m³) | 20°C rise | 9.9 hours |
💡 Important Notes:
- These estimates assume optimal conditions (air temperature around 15°C)
- Your spa MUST be properly insulated and covered for best results
- At very cold temperatures (-10°C to -25°C), heating times will increase
- The Full Inverter technology automatically adjusts power output for efficiency
Performance in Different Conditions 🌡️
| Air Temperature | Water Temperature | Heating Capacity | Power Consumption | COP (Efficiency) |
|---|---|---|---|---|
| 26°C (Summer) | 26°C | 3.3 – 7 kW | 0.28 – 1.4 kW | 5.0 – 11.9 |
| 15°C (Spring/Autumn) | 38°C | 2.8 – 4.7 kW | 0.67 – 1.3 kW | 3.7 – 4.2 |
| -10°C (Winter) | 38°C | 2.2 – 3.3 kW | 1.2 – 1.5 kW | 1.8 – 2.1 |
What COP Means for You: A COP (Coefficient of Performance) of 4.0 means for every 1 kW of electricity used, you get 4 kW of heating – that’s 4 times more efficient than an electric heater!
📄 Downloads & Documentation
Access comprehensive technical information and installation guides:
📥 Installation & User Manual (opens in new tab) Complete 87-page manual covering installation instructions, electrical connections, WiFi setup, maintenance schedules, troubleshooting guides, and warranty information. Essential reading for installers and users.
📥 Product Datasheet (opens in new tab) Quick-reference technical specifications, performance data tables, dimensions, and feature overview. Perfect for comparing specifications or sharing with installers.
Advanced Features That Set It Apart 🚀
EVI Technology – The Game Changer for Cold Weather
Most heat pumps struggle or stop working entirely below 5°C. The Spawer Ice Spa uses Enhanced Vapour Injection (EVI) technology – a sophisticated system that injects additional refrigerant vapour into the compressor at low temperatures.
What this means in practice:
- Continues heating effectively down to -25°C
- Maintains strong performance when competitors fail
- At -10°C, it still delivers 2.2-3.3 kW with a COP of 2.1
- You can enjoy your spa in the middle of snowy mountains
Full Inverter Technology – Smart Power Management
Unlike traditional on/off heat pumps, the Full Inverter system continuously adjusts its power output between 28% and 100% capacity.
Benefits you’ll notice:
- Quieter operation (no sudden starts and stops)
- More stable water temperature
- Lower energy consumption (up to 75% savings)
- Longer equipment lifespan
- Faster initial warm-up, then efficient maintenance heating
WiFi Smart Control – Total Convenience
The integrated WiFi module connects to the Smart Life app (iOS and Android), giving you complete control from anywhere.
Control features include:
- Set target temperature remotely
- Switch between heating/cooling/auto modes
- View real-time water and air temperatures
- Monitor power consumption
- Set heating schedules and timers
- Receive operational alerts
- Control optional circulation pump and heater relays
Titanium Heat Exchanger – Built for Longevity
The Twisted Tech© Titanium heat exchanger provides exceptional corrosion resistance and heat transfer efficiency.
Why titanium matters:
- Highly resistant to chlorine, bromine, and salt water
- Won’t corrode from harsh spa chemicals
- Maintains efficiency over years of use
- 15-year corrosion warranty for peace of mind
Complete Technical Specifications 📊
Electrical Specifications
| Parameter | Specification |
|---|---|
| Power Supply | Single Phase 220-240V ~ 50/60 Hz |
| Maximum Power | 1.7 kW |
| Maximum Current | 9 A |
| Comes With | Differential circuit breaker plug (5m cable) |
Operating Parameters
| Parameter | Specification |
|---|---|
| Heating Temperature Range | 15°C to 40°C |
| Cooling Temperature Range | 4°C to 35°C |
| Operating Air Temperature Range | -25°C to 43°C |
| Recommended Flow Rate | 3 m³/h |
| Pressure Losses | 0.4 mCE |
Heating Performance Data
| Conditions (Air/Water/Humidity) | Capacity | Power Draw | COP |
|---|---|---|---|
| 26°C / 26°C / 80% | 3.3 – 7 kW | 0.28 – 1.4 kW | 5.0 – 11.9 |
| 15°C / 26°C / 70% | 2.3 – 5.4 kW | 0.35 – 1.1 kW | 4.9 – 6.6 |
| 15°C / 38°C / 70% | 2.8 – 4.7 kW | 0.67 – 1.3 kW | 3.7 – 4.2 |
| 26°C / 38°C / 80% | 2.8 – 6 kW | 0.29 – 1.3 kW | 4.5 – 9.6 |
| -10°C / 38°C / 70% | 2.2 – 3.3 kW | 1.2 – 1.5 kW | 1.8 – 2.1 |
Cooling Performance Data
| Conditions (Air/Water/Humidity) | Capacity | Power Draw | EER |
|---|---|---|---|
| 35°C / 27°C / 70% | 3.2 – 3.7 kW | 0.87 – 1.2 kW | 3.0 – 3.7 |
Refrigeration System
| Parameter | Specification |
|---|---|
| Refrigerant Type | R32 (eco-friendly) |
| Refrigerant Charge | 0.65 kg |
| Compressor Type | Rotary (GMCC brand) |
| Compressor Technology | Full Inverter with EVI |
| Heat Exchanger | Twisted Tech© Titanium |
| 4-Way Valve | Yes (enables heating/cooling) |
| Minimum Operating Pressure | 0.1 MPa |
| Maximum Operating Pressure | 4.3 MPa |
Physical Specifications
| Parameter | Specification |
|---|---|
| Unit Dimensions (W × D × H) | 710 × 490 × 500 mm |
| Packaging Dimensions | 910 × 550 × 540 mm |
| Net Weight | 43 kg |
| Gross Weight | 46 kg |
| Hydraulic Connections | 32 / 38 mm (1″ female threaded) |
| Protection Rating | IPX4 (splash resistant) |
Noise Levels
| Distance | Sound Level |
|---|---|
| At 1 meter | < 48 dB(A) |
| At 4 meters | < 36 dB(A) |
| At 10 meters | < 28 dB(A) |
For reference: 30 dB(A) is roughly the sound of a whisper, 40 dB(A) is a quiet library.
Installation & Clearance Requirements 📏
Space Requirements
For optimal performance and airflow, maintain these clearances:
- Front (Air Outlet): Minimum 1.5 meters clear space
- Sides: Minimum 0.5 meters clear space
- Rear: Minimum 0.5 meters clear space
- Top: Keep clear of obstructions
⚠️ Important: Do not place anything within 1.5m of the front of the heat pump. This is where warm exhaust air exits.
Installation Location Guidelines
✅ DO:
- Install on level, stable concrete base
- Ensure good air circulation around unit
- Keep within recommended distance from spa (1.5-2.5m)
- Install in location accessible for maintenance
- Direct exhaust air away from windows/doors
❌ DON’T:
- Install near roads (mud splatter risk)
- Place in enclosed space without ventilation
- Install near flammable materials or heat sources
- Position where it can be used as a step
- Install in locations with oil, corrosive agents, or sulfur compounds
Hydraulic Connection
Included connection kit contains:
- 2 × male 1″ threaded connections
- Hydraulic hose
- Hydraulic elbow
- 2 × hose clamps
Plumbing requirements:
- Connect AFTER your spa filter (clean water essential)
- Install isolation valves for easy servicing
- Ensure 3 m³/h minimum flow rate
- Keep piping insulated to minimize heat loss
Electrical Connection
Supplied with:
- Differential circuit breaker plug (10mA, 5-meter cable)
- Power consumption monitoring display
Your responsibility:
- Properly grounded electrical socket
- Weather-protected location for socket
- Surge protection recommended
- Maximum 9A circuit requirement
What’s Included in the Box 📦
Your complete package includes everything needed for installation:
✅ Spawer Ice Spa 7kW heat pump unit ✅ Winter protective cover ✅ 2 × male 1″ threaded hydraulic connections ✅ Hydraulic connection hose ✅ Hydraulic elbow fitting ✅ 2 × hose clamps ✅ 2 × control relays (for heater and pump control) ✅ 5-meter power cable with integrated 10mA differential circuit breaker ✅ Installation and user manual ✅ Optional: Remote waterproof touch screen controller (if selected)
Cost Comparison: Heat Pump vs Electric Heater 💰
Let’s look at real-world running costs to understand your savings:
Scenario: Heating 1,500L Spa from 20°C to 38°C (18°C rise)
Using Spawer Ice Spa 7kW Heat Pump:
- Energy required: 1.5 m³ × 18°C × 1.16 = 31.32 kWh heat output needed
- At COP of 4.0 (average): 31.32 ÷ 4 = 7.83 kWh electricity consumed
- Cost at £0.24/kWh: £1.88 per heating cycle
Using Traditional 3kW Electric Heater:
- Energy required: 31.32 kWh
- Electricity consumed: 31.32 kWh (no efficiency gain)
- Cost at £0.24/kWh: £7.52 per heating cycle
Your Savings: £5.64 per heating cycle (75% reduction)
Annual Cost Estimate
If you heat your spa twice per week for 48 weeks:
- Heat Pump: £180.48 per year
- Electric Heater: £721.92 per year
- Annual Savings: £541.44
The heat pump typically pays for itself within 1-2 years through energy savings alone.
Operating Modes Explained 🎯
Heating Mode 🔥
Standard mode for warming spa water. Heat pump actively heats water to reach and maintain your target temperature.
When to use: Year-round heating, especially in cold weather
Cooling Mode ❄️
Reverses the refrigeration cycle to cool water. Perfect for hot summer days when spa water gets too warm.
When to use: Summer months when ambient temperature exceeds desired water temperature
Automatic Mode 🤖
Intelligently switches between heating and cooling based on your target temperature and current conditions.
When to use: Set-and-forget operation for consistent temperature year-round
Optional Control Relays – Enhanced Functionality 🔌
The Spawer Ice Spa includes two control relays that expand functionality:
SPA Heater Control Relay (Automatic or Manual)
This relay can control your spa’s existing electric heater for backup heating in extreme cold.
Automatic Mode:
- When ambient temperature drops below set threshold (adjustable -25°C to 20°C, default 5°C)
- AND water needs heating beyond what heat pump alone can provide
- Relay activates electric heater as supplementary heat source
Manual Mode (Boost):
- Activates whenever water temperature is more than set amount below target
- Provides maximum heating power for rapid warm-up
- Ideal for getting spa ready quickly before use
Circulation Pump Control Relay (Optional Pump)
Controls an optional circulation pump for automated water movement.
Automatic Mode:
- Activates pump periodically (every 30-90 minutes, adjustable)
- Checks water temperature
- Starts heat pump if heating needed
- Maintains circulation until target temperature reached
Manual Mode:
- Keeps circulation pump running 24/7
- Ensures constant water movement
- Best for extremely cold climates to prevent freezing
Frequently Asked Questions ❓
Installation & Setup
Q: How difficult is installation? Can I do it myself? A: The Spawer Ice Spa is designed for easy Plug & Play installation. If you’re comfortable with basic plumbing and have an electrician verify your socket, many customers install it themselves. However, we recommend professional installation to ensure optimal performance and maintain warranty coverage. The manual provides step-by-step guidance.
Q: What’s the minimum distance from my spa? A: UK electrical safety standards (NF C 15-100) recommend 2.5 meters minimum. However, with the included differential circuit breaker, you can install as close as 1.5 meters while maintaining proper clearances (1.5m front, 0.5m sides/rear).
Q: Do I need to modify my existing spa plumbing? A: No major modifications needed. The heat pump connects in-line with your existing circulation system using the included fittings. You’ll need to cut into your return line and install the heat pump between your filter and spa return. Isolation valves are recommended for easy maintenance.
Q: Can I control it without the WiFi app? A: Absolutely. The built-in control panel on the unit provides full control. The optional wired controller (included) offers convenient remote control without needing a smartphone. WiFi control via the Smart Life app is an added convenience, not a requirement.
Performance & Operation
Q: Will this really work at -25°C? A: Yes! The EVI (Enhanced Vapour Injection) technology is specifically designed for extreme cold. At -10°C, it still delivers 2.2-3.3 kW with a COP of 2.1. However, heating times will be longer in extremely cold weather, and your spa must be well-insulated. The heat pump continues operating down to -25°C, though performance gradually decreases as temperature drops.
Q: How long does it take to heat my spa from cold? A: This varies based on spa volume, starting temperature, and ambient conditions. As a general guide: a typical 1,500L spa raising water temperature by 20°C takes approximately 5 hours in moderate weather (15°C ambient). In very cold conditions or with larger spas, expect longer times. Always keep your spa covered when not in use to minimize heat loss.
Q: Why is my spa taking longer to heat than the estimates show? A: Several factors affect heating time: poor insulation, uncovered spa losing heat, low ambient temperature, wrong flow rate, or spa heater thermostat set too low. Ensure your spa is well-insulated, cover is in good condition, and the filtration pump is running at the correct flow rate (3 m³/h).
Q: How much will it cost to run? A: Running costs vary based on usage, climate, and electricity prices. On average, expect £15-25/month for maintaining a well-insulated spa at 38°C with regular use. This is approximately 70-75% less than running an electric heater. The Full Inverter technology minimizes power consumption once target temperature is reached.
Q: Can it really save 75% on energy costs? A: Yes, when compared to traditional electric resistance heaters. A COP of 4.0 means you get 4 kW of heat for every 1 kW of electricity used – that’s 4 times more efficient. Even at -10°C with a COP of 2.0, you’re still 50% more efficient than an electric heater. Your actual savings depend on your current heating method and local electricity rates.
Q: Is it noisy? Will it disturb my neighbors? A: The Spawer Ice Spa is remarkably quiet. At 10 meters distance, it produces less than 28 dB(A) – quieter than a whisper. The Full Inverter technology eliminates the sudden starts and stops of traditional compressors, resulting in smooth, quiet operation. Most customers report that it’s quieter than their spa’s circulation pump.
Maintenance & Longevity
Q: How much maintenance does it require? A: Minimal maintenance: Clean the evaporator fins 2-3 times per year with a soft brush and vacuum. Check water filter regularly. Verify refrigerant pressure gauge shows 80+ PSI before each season. Have a qualified technician perform annual inspection. The titanium heat exchanger requires no special maintenance beyond ensuring proper water chemistry (pH 6.8-7.8).
Q: What’s the expected lifespan? A: With proper maintenance, expect 10-15+ years of reliable service. The compressor has a 7-year warranty, and the titanium heat exchanger has a 15-year corrosion warranty, demonstrating the manufacturer’s confidence in longevity.
Q: Can I use it with salt water / chlorine / bromine systems? A: Yes! The titanium heat exchanger is compatible with all water treatment systems including chlorine, bromine, salt chlorinators, and mineral systems. Install any chemical dosing systems AFTER the heat pump in your plumbing line to minimize corrosion risk. Maintain pH between 6.8-7.8 for optimal performance.
Q: Should I turn it off when not using the spa? A: For short absences (few days), leave it running in maintenance mode – it uses very little power once at temperature. For extended absences (weeks/months) or if you winterize your spa, turn it off and drain the heat pump according to manual instructions. The unit includes automatic anti-freeze protection at 0°C.
Cooling Function
Q: How does the cooling function work? A: The 4-way valve reverses the refrigeration cycle, allowing the heat pump to extract heat from the water and expel it to the air – essentially acting as an air conditioner for your spa. This is perfect for summer months when ambient temperatures make spa water uncomfortably warm.
Q: When would I need to cool my spa? A: In hot summer weather (above 30°C), spa water can naturally heat beyond comfortable levels (above 40°C). The cooling function brings water temperature down to your desired level, typically 28-35°C for refreshing summer use. It can cool water down to 4°C if needed.
Technical & Compatibility
Q: Will this work with my spa? A: The Spawer Ice Spa is compatible with virtually all hot tubs, spas, swim spas, and Nordic baths. Requirements: 220-240V power supply, circulation pump delivering 3 m³/h flow rate, and space for the 710×490×500mm unit with proper clearances. Check your spa specifications or contact us for confirmation.
Q: What if my circulation pump flow rate is different? A: The heat pump is optimized for 3 m³/h flow rate. Too little flow causes “d1 Insufficient Water Flow” error. Too much flow increases pressure loss. Most spa circulation pumps deliver 2-4 m³/h, which works fine. If your pump is significantly different, consult with a professional about system compatibility.
Q: Can I use this to heat a swimming pool? A: This model is specifically designed for spas and hot tubs (smaller volumes, higher temperatures). For swimming pools, you need a pool-specific heat pump with higher capacity. The Ice Spa’s 7kW output and 3 m³/h flow rate are optimized for spa volumes (1,000-3,000 liters), not pool volumes (20,000+ liters).
Q: Does it work with a 3-phase power supply? A: No, this model requires single-phase 220-240V power supply. If you only have 3-phase power, you’ll need a phase converter or should consider a 3-phase heat pump model.
Warranty & Support
Q: What’s covered under warranty? A: The Spawer Ice Spa includes comprehensive warranty coverage:
- 3 years on the complete heat pump unit
- 7 years on the compressor
- 15 years on the titanium heat exchanger (corrosion resistance)
Warranty covers manufacturing defects and material faults. Not covered: damage from improper installation, incorrect water chemistry, neglect, or unauthorized repairs.
Q: What if something goes wrong? A: The heat pump has built-in diagnostic systems that display error codes. The manual includes comprehensive troubleshooting guides for common issues. For warranty service, contact our technical support team. Many issues can be resolved remotely via the WiFi connection diagnostic features.
Smart Features
Q: How do I set up WiFi control? A: Download the free “Smart Life” app (iOS or Android). Press and hold the WiFi buttons on the heat pump control panel for 5 seconds to activate pairing mode. Follow in-app instructions to connect to your 2.4GHz WiFi network. Full instructions provided in the manual. Note: Only 2.4GHz WiFi networks are supported, not 5GHz.
Q: Can multiple people control it via the app? A: Yes! Once paired, you can share device access with multiple users through the Smart Life app. Perfect for households where multiple people manage the spa or vacation homes with property managers.
Q: What if my WiFi signal doesn’t reach the heat pump location? A: You can use a WiFi extender/repeater to boost signal strength to the heat pump location. Alternatively, use the built-in control panel or optional wired controller – WiFi is convenient but not essential for operation.
Why Buy From Parts4Tubs? ✨
✅ Authorized Poolex Dealer – Genuine products with full manufacturer warranty
✅ Free UK Delivery – No hidden shipping charges
✅ Expert Technical Support – Advice before and after purchase
✅ Fast Dispatch – Most orders ship within 1-2 business days
✅ Comprehensive Documentation – Full manuals and installation guides included
Warranty Coverage 🛡️
Your Spawer Ice Spa 7kW comes with industry-leading warranty protection:
| Component | Warranty Period | Coverage |
|---|---|---|
| Complete Unit | 3 Years | Manufacturing defects and material faults |
| Compressor | 7 Years | Full compressor replacement if defective |
| Titanium Heat Exchanger | 15 Years | Corrosion resistance guarantee |
Warranty starts from date of purchase (invoice date)
Not covered: Damage from improper installation, inadequate water chemistry, neglect, unauthorized modifications/repairs, or normal wear and tear.
Important: Professional installation recommended to ensure warranty validity. Keep proof of purchase and maintain proper water chemistry records.
Ready to Transform Your Spa Experience? 🌊
The Spawer Ice Spa 7kW Inverter Heat Pump delivers exceptional performance, remarkable energy efficiency, and year-round comfort – even when temperatures plummet to -25°C. With up to 75% energy savings, WiFi convenience, and whisper-quiet operation, it’s the smart choice for serious spa enthusiasts.
Don’t let winter freeze your spa enjoyment. Order your Spawer Ice Spa 7kW today and start saving on every heating cycle.







