🌡️ 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:

1. Integrated Mode (BP) – Full control through your Balboa spa topside panel when connected to compatible BP control system
2. Standalone Mode (AP) – Direct control via the built-in keypad on the heat pump unit itself

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🛠️ 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.