Spawer O-Spa 7kW Heat Pump – 3-in-1 Spa Heating, Cooling & Chilling System 🌡️

Transform your spa experience with the ultimate climate control solution. The Spawer O-Spa 7kW Heat Pump delivers powerful, energy-efficient heating and cooling for spas and Nordic baths, with up to 75% energy savings compared to traditional electric heaters. Enjoy perfectly heated water in winter and refreshingly cool temperatures in summer – all from one compact, WiFi-enabled unit.

Powerful Performance for Larger Spas The 7kW model is specifically designed for bigger spas and Nordic baths, delivering robust heating capacity even in challenging conditions. Whether you’re maintaining temperature on a cold winter evening or rapidly heating your spa after a water change, this heat pump has the power you need.

3-in-1 Climate Control

✅ Heating Mode: Warms water from 10°C to 40°C efficiently
✅ Cooling Mode: Refreshing temperatures down to 8°C
✅ Chilling Function: Ice bath therapy down to 3°C for muscle recovery

Works in Extreme Conditions Unlike standard spa heaters, the O-Spa 7kW operates in temperatures from -15°C to +43°C, with reliable performance down to -7°C when used alongside your existing heater. Automatic de-icing ensures consistent operation through winter.

Smart WiFi Control Control your spa from anywhere using the Smart Life app. Adjust temperature, switch modes, set schedules, and monitor performance remotely – your spa is always ready when you are.

Exceptional Energy Efficiency With COP ratings up to 5.2, this heat pump generates 5.2kW of heat for every 1kW of electricity consumed. That’s over 400% efficiency, slashing your heating costs compared to conventional electric spa heaters.

Built to Last

🛡️ 2-year heat pump warranty
🛡️ 5-year compressor warranty
🛡️ 10-year titanium coil corrosion warranty

📊 Complete Technical Specifications

Core Performance Data

Specification	Details
Model Reference	PC-OSPA 70
Heating Capacity	7.0 kW (at 26°C air / 26°C water)
Cooling Capacity	3.5 kW (at 35°C air / 27°C water)
Maximum Power Consumption	2.00 kW
Maximum Current	8.87 A
COP (Heating)	5.20 (at optimal conditions)
EER (Cooling)	2.97
Recommended Climate	Temperate

Power & Electrical

Specification	Details
Power Supply	220-240V / 50Hz Single Phase
Connection Type	UK 3-pin plug with integrated 10mA RCD
Cable Length	5 meters
Protection Rating	IPX4 (splash-proof)

Operating Conditions

Specification	Details
Operating Range (Ambient)	-15°C to +43°C
Optimal Performance Range	10°C to 43°C
Extended Winter Use	Down to -7°C (with auxiliary heater)
Heating Temperature Range	10°C to 40°C
Cooling Temperature Range	8°C to 28°C
Chiller Function	Down to 3°C

Hydraulic Specifications

Specification	Details
Connections	32mm / 38mm (fittings included)
Recommended Flow Rate	2.16 m³/h
Pressure Drop	1.2 mCE
Heat Exchanger	Twisted Tech© Titanium Coil
Refrigerant	R32 (0.45 kg) – Low GWP, eco-friendly

Physical Dimensions & Weight

Specification	Details
Unit Dimensions (W×D×H)	600 × 430 × 430 mm
Packaging Dimensions	657 × 460 × 490 mm
Net Weight	30 kg
Gross Weight (Packaged)	35 kg

Noise Levels

Distance	Noise Level
At 1 meter	< 50 dB(A)
At 4 meters	< 38 dB(A)
At 10 meters	< 30 dB(A)

💡 Quieter than a normal conversation at 4 meters – perfect for residential installations

Additional Features

Feature	Details
Compressor Type	Rotary (highly efficient, long-lasting)
Functions	Heating, Cooling, Chilling, Auto Mode
Defrost System	Automatic de-icing for winter reliability
Control Panel	Digital display with intuitive buttons
WiFi Connectivity	Smart Life app compatible (iOS & Android)
Integrated Relays	Spa heater pilot relay (included), Optional circulation pump relay

📄 Downloads & Documentation

Access complete technical information, installation guides, and specifications:

📥 Installation & User Manual (opens in new tab)

Complete 32-page manual covering safety warnings, installation procedures, hydraulic and electrical connections, control panel operation, WiFi setup instructions, maintenance schedules, troubleshooting guides, and detailed wiring diagrams.

📥 Product Datasheet (opens in new tab)

Technical specification sheet with performance data tables at various conditions, COP/EER ratings, physical dimensions, chiller function benefits, accessories list, and warranty information.

🌊 Performance Under Real Conditions

Heating Performance at Various Temperatures

Air/Water Temp	Humidity	Heating Power	Power Draw	COP
26°C / 26°C	80%	7.0 kW	1.35 kW	5.20
26°C / 38°C	80%	6.3 kW	1.50 kW	4.05
15°C / 38°C	70%	5.0 kW	1.23 kW	4.05

Cooling Performance (Chiller Mode)

Air/Water Temp	Humidity	Cooling Power	Power Draw	EER
35°C / 27°C	70%	3.5 kW	1.18 kW	2.97
15°C / 5°C	70%	1.4 kW	1.00 kW	1.30

⏱️ Estimated Heat-Up Times

How Long to Heat Your Spa?

The table below shows estimated times to raise water temperature in typical spa volumes. These are calculated estimates based on the heat pump’s rated capacity under optimal conditions.

Spa Volume	Temperature Rise	Estimated Time*
1,000 litres (1 m³)	10°C rise	1.7 hours
1,000 litres (1 m³)	20°C rise	3.3 hours
1,500 litres (1.5 m³)	10°C rise	2.5 hours
1,500 litres (1.5 m³)	20°C rise	5.0 hours
2,000 litres (2 m³)	10°C rise	3.3 hours
2,000 litres (2 m³)	20°C rise	6.6 hours
2,500 litres (2.5 m³)	10°C rise	4.1 hours
2,500 litres (2.5 m³)	20°C rise	8.3 hours

Formula Used: Time (hours) = (Volume in m³ × Temperature Rise in °C × 1.16) ÷ 7.0 kW

⚠️ Important Disclaimers:

Times are theoretical estimates based on 7kW continuous output at 26°C ambient temperature
Actual times vary based on ambient temperature, wind, humidity, spa insulation quality, and cover usage
Heat loss occurs continuously – proper insulation and a quality spa cover are essential
Below 10°C ambient, use with your spa’s auxiliary heater for faster heat-up
Always maintain water circulation during heating

💡 Optimization Tips:

Use a thermal spa cover when not in use (reduces heat loss by up to 70%)
Insulate pipework to minimize heat loss during circulation
Heat during warmer parts of the day for maximum efficiency
Consider using the auxiliary heater boost function in cold weather

💰 Running Cost Comparison

Annual Heating Cost Estimates

Based on maintaining a 1,500-litre spa at 38°C through a UK heating season (October-March, 6 months):

Heating Method	Avg. Power Draw	Daily Runtime*	Daily Cost**	Annual Cost (6 months)***
O-Spa 7kW Heat Pump	1.5 kW	4 hours	£2.04	£367
Traditional 3kW Electric Heater	3.0 kW	8 hours	£8.16	£1,469
Savings with Heat Pump	–	–	£6.12/day	£1,102/year

*Runtime varies based on weather and usage **Based on UK average electricity rate of £0.34/kWh (November 2024) ***Assumes daily spa use with cover between sessions

💡 The O-Spa 7kW typically pays for itself in energy savings within 12-18 months

🏆 Top Features & Benefits

1️⃣ Reversible Hot/Cold Function

No need to drain and refill your spa when summer arrives. Switch to cooling mode for refreshing ice bath therapy or keep water temperatures comfortable on hot days. The reversible function means year-round usability.

Benefits:

Saves water (no draining required)
Supports muscle recovery with cold therapy
Perfect for athletes and fitness enthusiasts
Reduces maintenance time

2️⃣ Powerful 7kW Output

Specifically designed for larger spas (1,500-2,500 litres) and Nordic baths. The increased capacity means faster heat-up times and better temperature maintenance even in challenging weather.

Benefits:

Heats larger volumes efficiently
Maintains temperature in colder climates
Faster recovery after spa use
Suitable for commercial or residential installations

3️⃣ Smart WiFi Control

Control your spa remotely via the Smart Life app. Check current temperature, adjust settings, schedule heating times, and receive operational alerts – all from your smartphone.

App Features:

Real-time temperature monitoring
Remote on/off control
Programmable heating schedules
Operating mode selection
Performance data and alerts
Compatible with Amazon Alexa & Google Home

4️⃣ Winter-Ready Performance

Unlike cheaper heat pumps that fail in cold weather, the O-Spa 7kW operates down to -15°C ambient temperature, with reliable performance to -7°C when paired with your spa’s existing heater.

Cold Weather Features:

Automatic defrost cycle
Integrated heater control relay (included)
Optional circulation pump control
Low-temperature protection
Compressor pre-heating function

5️⃣ Ultra-Efficient R32 Refrigerant

Uses modern R32 refrigerant with low global warming potential (GWP). More efficient than older R410A systems and better for the environment.

Environmental Benefits:

75% lower GWP than R410A
Higher energy efficiency
Better heat transfer properties
Future-proof technology
Compliant with F-Gas regulations

6️⃣ Premium Titanium Heat Exchanger

The Twisted Tech© titanium coil resists corrosion from chlorine, bromine, salt systems, and other spa chemicals. Built to last with a 10-year corrosion warranty.

Durability Advantages:

Compatible with all water treatment systems
Salt chlorinator safe
Ozone compatible
Bromine resistant
Extended service life

7️⃣ Whisper-Quiet Operation

Advanced fan and compressor design keeps noise to a minimum. At just 30 dB(A) from 10 meters away, it’s quieter than a library – your neighbors will appreciate it.

Acoustic Features:

Anti-vibration mounting pads included
Optimized fan blade design
Sound-dampened compressor
Isolated motor mounts

🔧 Installation Requirements

Placement & Clearances

Minimum Distances:

1.5 meters clear space in front (airflow)
30 cm clearance to sides and rear
2.5 meters from pool/spa edge (recommended, can be closer with RCD protection)

Ideal Location Characteristics:

Level, stable surface (concrete pad recommended)
Good air circulation (not enclosed)
Protected from direct weather (optional shelter)
Away from bedrooms/quiet areas
Not facing neighbor’s windows
Access to 230V power outlet

What’s Included

✅ Spawer O-Spa 7kW heat pump ✅ 2× hydraulic connection fittings (32mm/38mm) ✅ 2× stainless steel hose clamps ✅ Spa heater control relay ✅ 4× anti-vibration mounting pads (pre-installed) ✅ 5m power cable with integrated 10mA RCD ✅ Installation & user manual ✅ Product datasheet

What You’ll Need

Bypass installation kit (optional, recommended for easy servicing)
Appropriately sized circulation pump (minimum 2.16 m³/h flow rate)
PVC spa plumbing (32mm or 38mm diameter)
Weatherproof electrical outlet (230V, 16A minimum)
Level mounting surface
Basic plumbing tools

⚠️ Professional Installation Recommended While DIY installation is possible for experienced spa owners, we recommend professional installation to ensure proper hydraulic flow, electrical safety, and optimal performance. Incorrect installation may void warranty.

📱 WiFi Setup & Smart Control

Easy Connection Process

Step 1: Download the Smart Life App Available free on iOS (App Store) and Android (Google Play). Search for “Smart Life” and install.

Step 2: Create Your Account Register with your email or phone number. You’ll receive a verification code to activate your account.

Step 3: Add Your Heat Pump

In the app, tap “Add Device” → “Large Appliances” → “Water Heater”
Enter your WiFi password (2.4GHz networks only)
On the heat pump, press the MODE button for 5 seconds to activate pairing mode
The WiFi icon will flash, then stay solid when connected

Step 4: Start Controlling Remotely Set target temperatures, create heating schedules, switch between modes, and monitor performance from anywhere in the world.

💡 Smart Life App Features:

Remote temperature control
Heating/cooling/auto mode selection
Weekly programmable schedules
Real-time status monitoring
Energy consumption tracking
Push notifications for alerts
Voice control (Alexa & Google Home)
Multi-device management

❓ Frequently Asked Questions

1. How much does the O-Spa 7kW cost to run?

Running costs depend on usage patterns and electricity rates. For a typical 1,500-litre spa maintained at 38°C during winter (October-March), expect approximately £2-3 per day in electricity costs at UK rates (£0.34/kWh). This is about 75% less than running a traditional 3kW electric spa heater continuously.

The exact cost varies based on:

Ambient temperature (colder weather = higher consumption)
Spa insulation quality
How often you use your spa
Whether you use a thermal cover
Local electricity rates

2. What size spa is the 7kW model suitable for?

The 7kW model is ideal for:

Larger hot tubs (1,500-2,500 litres)
Nordic baths and swim spas (up to 3,000 litres in mild climates)
Commercial spa installations
Any application requiring robust heating capacity

For smaller spas (800-1,500 litres), consider the O-Spa 5kW model. For compact 2-3 person spas (under 1,000 litres), the O-Spa 3kW may be sufficient.

3. Can I use this with my existing spa heater?

Absolutely – this is recommended! The O-Spa 7kW includes an integrated relay that controls your spa’s existing electric heater. In automatic mode, when ambient temperature drops below 15°C (adjustable), the heat pump automatically activates your electric heater to boost heating performance.

This hybrid approach gives you:

Maximum efficiency in mild weather (heat pump only)
Faster heat-up in cold conditions (both systems)
Backup heating if the heat pump needs servicing
Flexibility to choose heating method based on conditions

4. How long does it take to heat my spa?

Heating time depends on several factors:

Spa volume: Larger spas take longer
Temperature rise required: Heating from 15°C to 38°C takes longer than maintaining 35°C
Ambient temperature: Performance decreases in cold weather
Insulation quality: Well-insulated spas retain heat better

Typical examples (optimal conditions):

1,500 litres, 10°C rise: approximately 2.5 hours
2,000 litres, 20°C rise: approximately 6.6 hours

For fastest heat-up, use the auxiliary heater boost function in cold weather. Always use a thermal spa cover to minimize heat loss.

5. Will this work in winter? How cold can it operate?

Yes! The O-Spa 7kW operates in ambient temperatures from -15°C to +43°C. However, performance varies:

Above 10°C: Optimal performance, heat pump can maintain and heat your spa efficiently on its own

Between -7°C and 10°C: Heat pump continues working but with reduced capacity. Use the integrated heater relay to boost performance with your spa’s electric heater

Below -7°C: Heat pump enters protection mode. Your spa’s electric heater takes over automatically

The automatic defrost function prevents ice buildup on the evaporator, ensuring reliable operation throughout winter.

6. Is the 7kW model noisy? Can I use it at night?

The O-Spa 7kW is designed for quiet operation:

At 10 meters: < 30 dB(A) – quieter than a whisper
At 4 meters: < 38 dB(A) – similar to a quiet library
At 1 meter: < 50 dB(A) – normal conversation level

For context, a typical refrigerator produces 40 dB(A). Thanks to anti-vibration pads and sound-dampened components, the heat pump won’t disturb neighbors or family members.

For nighttime use:

Place away from bedroom windows
Use any ambient screening (fence, plants) to further reduce sound
Consider setting heating schedules for daytime operation

7. What maintenance does the heat pump require?

Minimal maintenance is required:

Monthly:

Visual inspection for debris around the unit
Check water flow (clean spa filter if needed)

Quarterly:

Clean the evaporator fins with a soft brush and vacuum
Inspect hydraulic connections for leaks
Test the RCD (residual current device)

Annually (recommended professional service):

Full system inspection
Refrigerant level check
Electrical connection inspection
Hydraulic seal inspection
Performance verification

Winterization: If closing your spa for winter, store the heat pump indoors in a dry location after draining the water connections.

8. What is the chiller function and why would I use it?

The chiller function actively cools water down to 8°C (or 3°C for ice baths). This is increasingly popular for:

Cold water therapy benefits:

Muscle recovery after exercise
Reduced inflammation
Improved circulation
Enhanced immune response
Stress reduction
Better sleep quality

Summer cooling: Rather than sitting in hot water on a summer day, cool your spa to a refreshing 20-25°C for comfortable soaking without overheating.

9. Can I install this myself or do I need a professional?

DIY Installation Possible for Experienced Users: If you’re comfortable with basic plumbing and electrical work, and follow the detailed manual, self-installation is possible. The hydraulic connections are straightforward (32mm/38mm PVC), and the electrical connection is plug-and-play.

Professional Installation Recommended: We strongly recommend professional installation to ensure:

Correct water flow rate (critical for performance)
Proper bypass configuration (for easy servicing)
Optimal placement for efficiency and noise
Compliance with local electrical regulations
Warranty protection

Incorrect installation may result in poor performance, premature failure, or warranty voidance.

10. What warranty coverage is included?

The Spawer O-Spa 7kW includes comprehensive warranty protection:

✅ 2-year full heat pump warranty (parts and labor)
✅ 5-year compressor warranty (critical component protection)
✅ 10-year titanium coil warranty (against corrosion from chemicals)

Warranty requires:

Professional installation (or documented DIY following guidelines)
Regular maintenance as per manual
Water chemistry maintained within specified ranges (pH 6.9-8.0)
Proper winterization if applicable

11. Is this compatible with salt water systems?

Yes, fully compatible. The Twisted Tech© titanium heat exchanger is specifically designed to withstand:

Salt chlorinator systems
Traditional chlorine
Bromine treatment
Ozone systems
UV sterilization
Mineral purifiers

The titanium construction resists corrosion from all common spa chemicals. Just maintain pH between 6.9-8.0 and follow standard water chemistry guidelines.

12. What if the heat pump displays an error code?

Error codes indicate the nature of any issue:

Common codes:

E00: Ambient temperature too high or low – verify operating range
E01: Water temperature sensor fault – check connections
E06: Water flow protection – clean spa filter, check pump

For any error code:

Note the code displayed
Refer to the troubleshooting section in the manual (download here)
Perform basic checks (filter clean, pump running, correct water level)
If issue persists, contact technical support with the error code

Most errors resolve with simple maintenance (filter cleaning) or reset procedures.

✅ Package Contents & What’s Included

When your Spawer O-Spa 7kW arrives, you’ll receive:

Main Unit

🎯 O-Spa 7kW heat pump with pre-installed anti-vibration pads
🔌 5-meter power cable with integrated 10mA RCD safety plug
📱 Built-in WiFi module for Smart Life app connectivity

Hydraulic Components

🔧 2× hydraulic connection fittings (32mm/38mm adapters)
🔩 2× stainless steel hose clamps for secure connections

Control Accessories

⚡ Spa heater control relay (for auxiliary heater integration)
📡 Optional circulation pump control relay

Documentation

📄 Complete installation & user manual (view online)
📄 Technical datasheet (view online)
📜 Warranty registration information

🎁 Optional Accessories (Sold Separately)

Hydraulic Bypass Kit

Recommended for easier maintenance and servicing. Allows isolation of the heat pump without draining the entire spa system.

Remote Touch Screen Controller

Upgraded control panel for more convenient operation without accessing the app.

Circulation Pump Control Relay

Additional relay for automatic control of an auxiliary circulation pump (one relay included standard for heater control).

Protective Cover

Weather-resistant cover for additional protection during extended periods of non-use.

🌟 Customer Benefits Summary

Save Money

Up to 75% reduction in heating costs vs. electric heaters
Low running costs (typically £2-3/day in winter)
Pays for itself in 12-18 months through energy savings
Long-term durability reduces replacement costs

Year-Round Comfort

Heating mode for winter spa enjoyment
Cooling mode for summer refreshment
Chiller function for ice bath therapy
Automatic mode adapts to conditions

Smart & Convenient

WiFi app control from anywhere
Programmable heating schedules
Real-time monitoring
Voice control compatibility
Automatic defrosting

Reliable & Durable

Works in extreme temperatures (-15°C to +43°C)
Titanium exchanger resists corrosion
Rotary compressor for longevity
Comprehensive warranty coverage
Quality Poolex/Poolstar brand

Environmentally Friendly

R32 refrigerant (low GWP)
Energy-efficient operation (COP up to 5.2)
Reduces carbon footprint
No water waste (reversible function)
Sustainable heating solution

📞 Technical Support & Resources

Need Help?

Product Documentation:

Installation & User Manual (opens in new tab)
Technical Datasheet (opens in new tab)

Smart Life App Support:

In-app “Help” section for app-specific questions
App provided by Hangzhou Tuya Technology
Compatible with iOS and Android devices

⚠️ Important Safety & Compliance Information

Safety Certifications

✅ CE certified for European safety standards
✅ IPX4 splash-proof rating
✅ Integrated 10mA RCD for electrical protection
✅ R32 refrigerant compliance with F-Gas regulations

Installation Warnings

⚠️ Must be installed by qualified person for warranty validation
⚠️ Contains flammable R32 refrigerant – no unauthorized servicing
⚠️ Keep minimum clearances for proper airflow
⚠️ Protect electrical connections from water ingress
⚠️ Do not operate without water circulation

Operational Guidelines

⚠️ Maintain spa water pH between 6.9 and 8.0
⚠️ Regularly clean spa filter for adequate flow
⚠️ Test RCD (safety switch) monthly
⚠️ Never block air intake or exhaust
⚠️ Keep unit out of reach of children

Water Chemistry Compatibility

✅ Compatible with chlorine treatment
✅ Compatible with salt water systems
✅ Compatible with bromine
✅ Compatible with ozone systems
✅ Maintain proper pH levels always

🚚 Delivery & Installation Overview

Packaging Details

Package Dimensions: 657 × 460 × 490 mm
Package Weight: 35 kg (gross weight)
Net Unit Weight: 30 kg
Packaging: Protective foam, cardboard outer carton

Upon Delivery

Inspect packaging for damage before signing
Check unit for any transportation damage
Verify all components against packing list
Note any issues on carrier’s delivery receipt
Report damage within 48 hours

Storage Before Installation

Store upright on pallet in original packaging
Keep in dry, protected location
If transported horizontally, wait 24 hours before connecting
Avoid exposure to extreme temperatures

🎯 Final Thoughts: Is the O-Spa 7kW Right for You?

Choose the O-Spa 7kW if you have:

✅ A larger spa or Nordic bath (1,500-2,500+ litres) ✅ Interest in year-round spa use (heating and cooling) ✅ Desire to dramatically reduce energy costs ✅ Need for reliable cold-weather operation ✅ Preference for smart WiFi control ✅ Requirements for ice bath/cold therapy functionality

This model excels when:

✅ Heating larger water volumes efficiently ✅ Operating in temperate climates with seasonal variation ✅ Paired with existing spa heater for winter boost ✅ Used with proper insulation and quality spa cover ✅ Installed by professionals for optimal configuration

Consider a smaller model if:

❌ Your spa is under 1,500 litres ❌ You’re in an extremely warm climate (3kW may suffice) ❌ Budget is the primary concern (5kW offers good value)

💪 Ready to Transform Your Spa Experience?

The Spawer O-Spa 7kW Heat Pump represents the ultimate solution for efficient, year-round spa climate control. With powerful heating, refreshing cooling, smart WiFi control, and industry-leading warranties, it’s an investment that pays for itself while delivering unparalleled comfort and convenience.

Key Takeaways:

💰 Save up to 75% on heating costs vs. traditional electric heaters
🌡️ 3-in-1 functionality: heat, cool, or chill your spa water
📱 Control remotely via smartphone app from anywhere
❄️ Works reliably in temperatures down to -15°C
🛡️ Protected by comprehensive 2/5/10-year warranties
⚡ Ultra-efficient with COP ratings up to 5.2
🌍 Eco-friendly R32 refrigerant

Your spa deserves the best. Your wallet will thank you.

Spawer O-Spa 7Kw Heat Pump