🌡️ Balboa Clim8zone 6kW Heat Pump – Energy-Efficient Heating & Cooling for Spas
Cut your spa running costs by up to 75% with this intelligent inverter heat pump that works in temperatures as low as -20°C.
📋 Product Overview
The Balboa Clim8zone™ 6kW Heat Pump represents the pinnacle of spa heating technology, delivering exceptional energy efficiency with a Coefficient of Performance (COP) of 5 to 10 times that of traditional electric heaters. This full inverter heat pump features both variable-speed compressor and fan technology, enabling whisper-quiet operation below 50 dBA while automatically optimising performance based on ambient conditions.
Designed for seamless integration with Balboa BP series control systems, the Clim8zone offers three operating modes: heating, cooling, and automatic temperature maintenance. Its robust construction allows reliable operation in ambient temperatures from -20°C to 43°C, making it ideal for year-round UK use. Whether you’re heating your hot tub in winter or cooling a plunge pool in summer, this reversible heat pump delivers consistent performance with dramatically reduced energy consumption.
The unit connects directly to compatible Balboa control systems via a dedicated data cable, allowing full temperature control through your existing spa topside panel.
⭐ Key Features
✅ 6kW Heating Capacity – Powerful output for efficient spa water heating, suitable for hot tubs and swim spas
✅ COP 5-10 (up to 15) – Delivers 5 to 10 times more heat energy than electricity consumed, potentially reaching 15x under optimal conditions
✅ Full Inverter Technology – Variable-speed compressor and fan automatically adjust for maximum efficiency and minimal noise
✅ Reversible Operation – Both heating and cooling modes for year-round temperature control, plus automatic mode
✅ Extreme Cold Operation – Functions effectively down to -20°C ambient temperature for reliable UK winter performance
✅ Ultra-Quiet Operation – Less than 50 dBA noise level, as quiet as a modern refrigerator
✅ Smart Algorithm – Artificial intelligence automatically adjusts compressor frequency based on air and water temperatures
✅ Balboa BP Integration – Direct connection to BP series control systems for seamless operation from your spa panel
✅ R32 Refrigerant – Environmentally responsible refrigerant with lower global warming potential
✅ IPX4 Water Resistance – Protected against water splashes from all directions
✅ Titanium Heat Exchanger – Corrosion-resistant for long service life with chemically treated spa water
✅ 4.0kW Cooling Capacity – Effective cooling mode for cold plunge therapy or summer temperature reduction
🔧 Technical Specifications
| Specification | Value |
|---|---|
| Part Number | HT-CLM60 / 73001 |
| Product Type | Air Source Heat Pump (Reversible) |
| Heating Capacity @27°C ambient | 6.3 kW |
| Heating Capacity @15°C ambient | 5.6 kW |
| Cooling Capacity | 4.0 kW (at 35°C ambient) |
| COP @A27/W27 | 5.8 |
| COP @A15/W25 | 5.1 |
| COP Range | 5 to 10 (up to 15 under optimal conditions) |
| Input Voltage | 220-240 V |
| Frequency | 50 Hz |
| Rated Current | 4.4 A |
| Maximum Current | 5.7 A |
| Power Input (Max) | 1.3 kW |
| Operating Temp Range (Ambient) | -20°C to 43°C |
| Water Temp Range (Heating) | 15°C to 40°C |
| Optimal Water Flow | 2.7 m³/h (45 LPM / 11.9 GPM) |
| Minimum Water Flow | 0.81 m³/h (13.5 LPM / 3.6 GPM) |
| Maximum Water Flow | 4.05 m³/h (67.5 LPM / 17.8 GPM) |
| Refrigerant | R32 |
| Compressor Type | Rotary Inverter (GMCC) |
| Noise Level | 40-52 dBA (variable speed) |
| IP Rating | IPX4 |
| Plumbing Connections | 1.5″ (50mm unions included) |
| Dimensions (L × W × H) | 794 × 474 × 555 mm |
| Weight | 54 kg |
| Data Cable Length | 4 metres |
🔗 Compatibility Guide
Compatible Control Systems
The Clim8zone requires BP series control systems with software revision version 65 or later. Look for “-C8Z” in your control system product code to confirm compatibility.
| System Code | System Name |
|---|---|
| BP6013G2-C8Z | BP601 3G2 |
| BP6013G3-C8Z | BP601 3G3 |
| BP2100G0-C8Z | BP2100 G0 |
| BP2100G1-C8Z | BP2100 G1 |
| BP214PBC-C8Z | BP21P4 BC |
Part Numbers:
| System Part Number | System Name |
|---|---|
| 56390-05 | BP2100 G1 |
| 56663-04 | BP2100 G0 |
| 56626-03 | BP21P4 BC |
| 59259-01, 59259-02 | BP601 3G3 |
| 59126-01, 59126-02 | BP601 3G2 |
| 56611-06 and after | BP601 3G1 |
Agency Prefixes: Compatible with BP20, BP21, BP501, BP6, BP2, BP1
Compatible Topside Panels
Look for “-C8Z” in your panel product code to confirm compatibility.
| Panel Type | Model Suffix |
|---|---|
| spaTouch2 | ending with -02 |
| spaTouch3 | ending with -07 |
| spaTouch3+ | C8Z compatible |
| spaTouch4 | C8Z compatible |
| spaTouch Mini | C8Z compatible |
| TP700 | C8Z compatible |
| TP740 (Trap/Square/T) | C8Z compatible |
Suitable Applications
| Application | Suitability | Notes |
|---|---|---|
| ♨️ Hot Tubs | ✅ Ideal | Primary design application |
| 🏊 Swim Spas | ✅ Recommended | 6kW suitable for larger volumes |
| ❄️ Cold Plunge | ✅ Suitable | 4kW cooling capacity |
⚠️ Important: Always verify your control system part number and software version before ordering. Updated BP Control System software and control panel software is required for Clim8zone operation.
💚 Energy Efficiency & Savings
Coefficient of Performance (COP)
| Condition | COP | Heating Output | Power Input |
|---|---|---|---|
| @27°C ambient / 27°C water | 5.8 | 6.3 kW | 1.1 kW |
| @15°C ambient / 25°C water | 5.1 | 5.6 kW | 1.1 kW |
| Optimal conditions | Up to 15 | – | – |
Estimated Savings
- Up to 75% reduction in heating costs compared to traditional electric heater
- Variable speed compressor optimises energy use automatically
- Smart algorithm continuously adjusts for maximum efficiency
How COP Works
A COP of 5 means for every 1kW of electricity used, the heat pump produces 5kW of heat energy. With a maximum power input of just 1.3kW, the Clim8zone can deliver up to 6kW of heating – that’s the same output as a traditional 6kW electric heater using a fraction of the electricity.
Real-World Example
| Heating Method | Power Consumption | Heat Output | Running Cost* |
|---|---|---|---|
| Traditional 3kW Heater | 3kW | 3kW | £0.90/hour |
| Clim8zone (COP 5) | 0.6kW | 3kW | £0.18/hour |
| Savings | 80% |
*Based on £0.30/kWh electricity rate, example only
🎛️ Operating Modes
Temperature Modes
| Mode | Function | Best For |
|---|---|---|
| 🔥 Heat Only | Heats water to set temperature | Winter use, standard hot tub operation |
| ❄️ Cool Only | Cools water to set temperature | Summer cooling, cold plunge therapy |
| 🔄 Heat and Cool (Auto) | Maintains set temperature automatically | Year-round hands-free comfort |
| ⏸️ Disabled | Heat pump switched off | Seasonal shutdown |
Speed Modes
| Mode | Description | Best For |
|---|---|---|
| Auto Smart | Automatically adjusts compressor frequency using AI algorithm based on ambient air temp, water temp and other factors | Maximum efficiency and savings (default) |
| Manual High | Maximum compressor frequency for fastest heating/cooling | Quick temperature changes |
| Manual Low | Lower compressor frequency for quieter operation | Night-time use, noise-sensitive areas |
Control Options
The Clim8zone can be controlled in two ways:
- Integrated Mode (BP) – Full control through your Balboa spa topside panel when connected to compatible BP control system
- Standalone Mode (AP) – Direct control via the built-in keypad on the heat pump unit itself
🛠️ Installation Requirements
⚠️ IMPORTANT: Installation must be carried out by a qualified professional in accordance with UK electrical regulations.
Location Requirements
- ☑️ Outdoor installation only – Never install indoors
- ☑️ Maximum 2 metres from spa (recommended)
- ☑️ Level, stable surface – Concrete slab or platform
- ☑️ Minimum platform load capacity: 136 kg (300 lbs)
- ☑️ Platform height should be above highest expected snowfall level
Minimum Clearances
| Position | Clearance Required |
|---|---|
| Front (air intake) | 80 mm minimum |
| Rear (air exhaust) | 300 mm minimum |
| Sides | 500 mm minimum |
| Top | 2500 mm minimum |
⚠️ All air vents must remain unobstructed and free of debris for proper airflow.
Electrical Requirements
| Requirement | Specification |
|---|---|
| Supply Voltage | 220-240 V AC |
| Frequency | 50 Hz |
| Maximum Current | 5.71 A |
| RCD Protection | Required (30mA recommended) |
| Earth/Bonding | Mandatory |
| Dedicated Circuit | Recommended |
Connection Method: The Clim8zone connects to the BP Control System via:
- Power cable with keyed 4-pin AMP connector (4m length)
- Data bus cable for communication with control system
No additional electrical circuitry is required as the Clim8zone operates directly from the spa control system.
Plumbing Requirements
| Requirement | Specification |
|---|---|
| Connection Size | 1.5″ (50mm) |
| Optimal Flow Rate | 2.7 m³/h (45 LPM) ±10% |
| Minimum Flow Rate | 0.81 m³/h (13.5 LPM) |
| Maximum Flow Rate | 4.05 m³/h (67.5 LPM) |
| Bypass Valve | Required if flow exceeds maximum |
| Flow Control Valve | Recommended for automatic flow regulation |
Included Accessories
- ✅ 2× Pump unions with gaskets (1.5″/50mm)
- ✅ Condensation drain hose and clamp
- ✅ Data bus cable (4m)
- ✅ Power cable with 4-pin AMP connector (4m)
- ✅ Installation wrench
- ✅ Rubber foot pads
💡 Tip: Install condensation drain hose to appropriate drainage point – condensation can be as much as 3+ litres per hour in high humidity conditions. This is normal operation, not a water leak.
⚠️ Safety Warnings
Electrical Safety
- ⚠️ ALWAYS disconnect power at RCD/circuit breaker before any work
- ⚠️ Installation by qualified electrician only
- ⚠️ Ensure correct voltage supply (220-240V in UK)
- ⚠️ Verify RCD protection is installed and working
- ⚠️ Earth bonding connection is mandatory
- ⚠️ High voltage inside unit – never open cabinet while powered
Operational Safety
- ⚠️ Never operate indoors – outdoor use only
- ⚠️ Keep all air vents unobstructed at all times
- ⚠️ Do not cover or enclose unit
- ⚠️ Unit must always be stored, transported and installed in vertical position
Winter/Freeze Protection
- ⚠️ CRITICAL: If powering off the Clim8zone during winter or when ambient temperature drops below 0°C, you must drain all water from the heat pump
- ⚠️ Failure to drain water will damage the titanium heat exchanger due to freezing
- ⚠️ Freeze damage voids warranty
Refrigerant Safety
- ⚠️ Contains R32 refrigerant
- ⚠️ Only qualified technicians should service refrigerant system
- ⚠️ Do not pierce or burn unit
- ⚠️ Store in room larger than 3m³
- ⚠️ R32 may not contain an odour
Water Safety
- ⚠️ Single wall heat exchanger – not suitable for potable water
- ⚠️ Maintain proper water flow at all times during operation
- ⚠️ Install ozone/UV equipment downstream from heat pump
- ⚠️ If using automatic chemical dosing, install check valve to protect heat exchanger from high chemical concentrations
🔍 Error Conditions & Troubleshooting
Common Conditions
| Condition | Cause | Solution |
|---|---|---|
| Low/No Flow Error | Water flow below 0.81 m³/h | Check pump operation, clean filter, verify valve positions, adjust flow control |
| High Temperature Shutoff | Water temp exceeds 43°C for 5+ seconds | Allow water to cool, check for flow restrictions |
| Defrost Mode | Ice formation on evaporator in cold weather | Normal operation – unit defrosts automatically |
Flow Control Notes
- The BP Control System has a minimum flow requirement of 23 GPM (5.22 m³/h) through the electric heater
- A bypass plumbing setup with slice valves is typically required to balance flow between the Clim8zone and the BP system heater
- Use the ball valve or flow control valve to adjust water flow into the Clim8zone
🎯 Ideal Applications
| Application | Suitability | Notes |
|---|---|---|
| ♨️ Hot Tubs (all sizes) | ✅ Ideal | Primary design application, efficient year-round heating |
| 🏊 Swim Spas | ✅ Recommended | 6kW capacity suitable for larger water volumes |
| ❄️ Cold Plunge Pools | ✅ Suitable | 4kW cooling capacity for cold therapy (10-15°C) |
| 🌡️ Year-round use | ✅ Perfect | Automatic heating and cooling maintains set temperature |
| ❄️ Cold climate operation | ✅ Capable | Functions down to -20°C ambient |
| 🔄 Dual heater setup | ✅ Compatible | Can work simultaneously with spa’s electric heater for faster heating |
This Heat Pump is Designed For:
- Reducing spa running costs by up to 75%
- Year-round automatic temperature control
- Environmentally responsible heating with R32 refrigerant
- Quiet, unobtrusive operation in residential settings
- Seamless integration with existing Balboa control systems
❓ Frequently Asked Questions
Q: How much can I save on running costs?
A: With a COP of 5-10, you can expect to reduce heating costs by up to 75% compared to a traditional electric heater. The actual savings depend on your usage patterns, local electricity rates, and ambient temperatures.
Q: Will it work in UK winters?
A: Yes, the Clim8zone operates effectively down to -20°C ambient temperature, which is well below typical UK winter conditions. The unit automatically manages defrost cycles when needed.
Q: How noisy is it?
A: Operating at less than 50 dBA (typically 40-52 dBA with variable speed), it’s comparable to a modern refrigerator or quiet conversation. In Auto Smart mode at low speed, it’s practically inaudible.
Q: Can it cool as well as heat?
A: Yes, the Clim8zone is fully reversible with 4kW cooling capacity. It’s perfect for cold plunge therapy, cooling your spa in summer, or maintaining precise temperatures year-round in automatic mode.
Q: What control systems is it compatible with?
A: Compatible with Balboa BP series control systems including BP2100 G1, BP2100 G0, BP21P4 BC, BP601 3G3, BP601 3G2, and BP601 3G1 (with software version 65 or later). Look for “-C8Z” in your control system part number.
Q: Do I need a qualified installer?
A: Yes. UK regulations require a qualified professional for heat pump installation, and proper installation is essential for warranty coverage.
Q: Can I use it without a Balboa control system?
A: Yes, the Clim8zone has a built-in keypad for standalone operation. However, integrated operation with a BP control system provides the best user experience and full feature access.
Q: What maintenance is required?
A: Regular cleaning of air vents to ensure proper airflow, maintaining correct water flow, and draining the unit if shutting down during freezing conditions. Annual professional inspection is recommended.
Q: Can it work alongside my existing spa heater?
A: Yes, the Clim8zone can work simultaneously with your spa’s traditional electric heater when connected to a BP control system, providing faster heating times when needed.
Q: What happens if the power goes off in winter?
A: If power is lost during freezing conditions, water remaining in the heat pump can freeze and damage the titanium heat exchanger. If you anticipate power outages, consider draining the unit as a precaution.
📥 Downloads & Resources
📄 Installation Guide – Complete installation instructions with wiring diagrams
📄 Info Guide – Product information and features
📄 Sell Sheet – Technical specifications overview
🏆 Why Choose Balboa Clim8zone 6kW
- ✅ Industry-leading efficiency – COP of 5-10, up to 15 under optimal conditions
- ✅ Extreme temperature operation – Works reliably from -20°C to 43°C ambient
- ✅ Full inverter technology – Variable speed compressor AND fan for maximum efficiency
- ✅ Whisper-quiet operation – Less than 50 dBA, virtually silent at low speed
- ✅ Reversible heating AND cooling – 6kW heating, 4kW cooling in one unit
- ✅ Smart AI algorithm – Automatically optimises performance based on conditions
- ✅ Seamless Balboa integration – Direct control from your spa topside panel
- ✅ R32 eco-friendly refrigerant – Lower environmental impact
- ✅ Proven reliability – Backed by Balboa Water Group’s industry reputation
🤝 Why Buy From Parts4Tubs
- ✅ UK-based company with local support
- ✅ Fast UK delivery
- ✅ Expert technical advice from spa specialists
- ✅ Competitive pricing
- ✅ Full warranty support
- ✅ Easy returns within 30 days
- ✅ Help with compatibility checking
- ✅ Installation guidance available
- ✅ Genuine Balboa products
✨ Summary
The Balboa Clim8zone 6kW Heat Pump delivers exceptional energy efficiency with a COP of 5-10, reducing spa heating costs by up to 75% compared to traditional electric heaters. With both 6kW heating and 4kW cooling capacity, full inverter technology, and operation down to -20°C, it provides year-round temperature control for hot tubs, swim spas, and cold plunge pools. Seamlessly integrates with Balboa BP control systems for effortless operation. Upgrade your spa heating today and start saving.




