🌊 Gecko IN.TEMP Heat Pump 7.5kW – Ultra-Efficient Hot Tub Heating & Cooling System

Transform your hot tub experience with the revolutionary Gecko IN.TEMP 7.5kW Heat Pump – the most energy-efficient way to heat and cool your spa water. Save up to 75% on energy costs compared to traditional electric heating while enjoying perfectly heated water year-round.

This innovative air source heat pump harnesses free renewable energy from the air, delivering exceptional efficiency with a COP (Coefficient of Performance) of up to 6.13. That means for every 1kW of electricity used, you get over 6kW of heating power!

Why Choose the Gecko IN.TEMP 7.5kW Heat Pump?

✅ Massive Energy Savings

• Up to 75% reduction in heating costs compared to electric elements
• COP of 6.13 in optimal conditions (24°C ambient, 26°C water inlet)
• COP of 4.48 in cooler weather (15°C ambient, 26°C water inlet)
• Uses eco-friendly R32 refrigerant (CE models) that’s ozone-friendly

⚡ Plug-and-Play Installation

• No additional power circuit required
• Connects directly to your Gecko spa control system
• Automatic detection and smart power management
• 5-meter (16 ft) cables included for communication and power

🌡️ 6 Intelligent Operating Modes

1. Eco Heat – Heat pump only, maximum efficiency
2. Smart Heat – Hybrid mode with backup electric heating
3. Cool – Active cooling for hot summer days
4. Eco Auto – Automatic heating/cooling without electric backup
5. Smart Auto – Automatic heating/cooling with backup heating
6. Electric – Traditional electric heating when needed

🔧 Easy Integration

• Compatible with Gecko Systems IN.YT, IN.YE, and IN.YJ
• Works seamlessly with all Gecko keypads (auto-detected)
• Self-diagnosis system with error codes for easy troubleshooting
• Requires software core 61 revision 54 or higher

🏗️ Built to Last

• Titanium heat exchanger – corrosion-free, compatible with all sanitizers (chlorine, bromine, salt)
• Robust rotary compressor (GMCC)
• Multiple safety features: flow protection, pressure protection, overload protection
• Operates in ambient temperatures from -5°C to 43°C (23°F to 109°F)

Complete Technical Specifications

Specification	Details
Power Output	7.5 kW (Heating)
Model Number	CE: 0615-807003 / NA: 0615-807001
Voltage	CE: 220-240V, 50Hz / NA: 240V ±5%, 60Hz
Rated Current	CE: 5.49A / NA: 6.32A
Maximum Current	CE: 8.67A / NA: 9.6A
Power Input (Max)	CE: 1.91kW / NA: 2.3kW
Heat Exchanger	Titanium (corrosion-resistant)
Compressor	Rotary (GMCC)
Refrigerant	CE: R32/800g / NA: R410A/1100g
Dimensions (LxWxH)	902mm x 356mm x 661mm (35.5″ x 14″ x 26″)
Weight (Net)	45kg (99 lbs)
Operating Temperature Range	-5°C to 43°C (23°F to 109°F)
Water Resistance	IPX4
Noise Level (at 1m)	56.5 dB(A)
Optimal Flow Rate	3.41 m³/h (15 GPM)
Minimum Flow Rate	1.14 m³/h (5 GPM)

Performance Data: Real-World Efficiency

Heating Performance (CE Model)

Ambient Temperature	Water Inlet Temp	Heating Capacity	Power Input	COP
24°C (75°F)	26°C (79°F)	7.52 kW	1.23 kW	6.13
15°C (59°F)	26°C (79°F)	5.63 kW	1.26 kW	4.48

Cooling Performance (CE Model)

Ambient Temperature	Water Inlet Temp	Cooling Capacity	Power Input	EER
35°C (95°F)	29°C (84°F)	6.24 kW	1.66 kW	3.76

💡 What does COP mean? A COP of 6.13 means that for every 1kW of electricity consumed, the heat pump delivers 6.13kW of heating power – over 500% efficiency!

Hot Tub Sizing & Heat-Up Time Guide

Recommended Hot Tub Sizes

The Gecko IN.TEMP 7.5kW is ideal for:

• Small to Medium Hot Tubs: 1,000 – 2,000 litres (265 – 530 gallons)
• Standard 5-6 Person Spas: Most residential hot tubs
• Commercial Small Spas: Suitable for light commercial use

Estimated Heat-Up Times

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

Optimal Conditions (24°C Ambient Temperature – COP 6.13)

Hot Tub Volume	Temperature Rise	Estimated Heat-Up Time
1,200 litres (1.2m³)	15°C → 40°C (25°C rise)	3.9 hours
1,500 litres (1.5m³)	15°C → 40°C (25°C rise)	4.8 hours
1,800 litres (1.8m³)	15°C → 40°C (25°C rise)	5.8 hours
2,000 litres (2.0m³)	15°C → 40°C (25°C rise)	6.4 hours

Cooler Conditions (15°C Ambient Temperature – COP 4.48)

Hot Tub Volume	Temperature Rise	Estimated Heat-Up Time
1,200 litres (1.2m³)	10°C → 40°C (30°C rise)	6.2 hours
1,500 litres (1.5m³)	10°C → 40°C (30°C rise)	7.7 hours
1,800 litres (1.8m³)	10°C → 40°C (30°C rise)	9.3 hours
2,000 litres (2.0m³)	10°C → 40°C (30°C rise)	10.3 hours

⚠️ Important Disclaimer: These are theoretical estimates based on ideal conditions. Actual heat-up times will vary depending on:

• Ambient air temperature and humidity
• Initial water temperature
• Hot tub insulation quality
• Wind conditions and location
• Cover usage
• Operating mode selected

Running Cost Comparison: Heat Pump vs. Electric Heating

Annual Energy Consumption & Cost Estimates

Assumptions:

• Hot tub maintained at 40°C year-round
• Average 1,500 litre (1.5m³) hot tub
• UK electricity rate: £0.30 per kWh
• Average heat loss: 3kW per day requiring 72kWh daily energy input

Traditional Electric Heating (100% Efficiency)

Period	Energy Consumption	Annual Cost
Yearly	26,280 kWh	£7,884

Gecko IN.TEMP 7.5kW (Average COP 5.0)

Period	Energy Consumption	Annual Cost	Savings
Yearly	5,256 kWh	£1,577	£6,307 (80%)

💰 Payback Period: With average installation costs of £2,500-£3,500, most owners see full return on investment in 6-12 months through energy savings alone!

Top Features & Benefits

🌿 Environmental Champion

• Reduces carbon footprint by up to 75%
• Uses ozone-friendly refrigerant (R32/R410A)
• Harnesses renewable energy from ambient air
• Significantly lower greenhouse gas emissions

🧠 Smart Technology

• Automatic mode switching (heating/cooling)
• Self-diagnosis with error code display
• Auto-restart after power interruption
• Auto-defrost in cold weather
• Intelligent power management

🛡️ Advanced Safety Features

• Insufficient water flow protection
• High/low pressure protection
• Overload protection
• Compressor protection
• Freeze protection algorithm

🔇 Whisper-Quiet Operation

• Only 56.5 dB(A) at 1 meter distance
• Quieter than normal conversation
• Won’t disturb neighbors or peaceful spa sessions

🌊 Cooling Capability

• Active cooling mode for hot summer days
• Maintain refreshing water temperatures
• Perfect for warm climates
• Cooling capacity: 6.24 kW

❄️ Year-Round Performance

• Operates down to -5°C (23°F)
• Works through spring, summer, autumn, and winter
• Reliable heating even in cold climates
• Built-in freeze protection

Installation Requirements & Guidelines

Electrical Connection

• No additional circuit breaker required – powers directly from spa control
• Connects via 6.35mm (0.250″) quick connect terminals
• 5-meter (16 ft) power cable included
• Optional 10-meter (33 ft) cable available separately

Plumbing Requirements

• Bypass system required – three valves (input, output, bypass)
• Install on pressure side of main pump for stable flow
• Must be installed before water treatment systems (chlorine, salt, etc.)
• Use check valve between bypass and treatment system
• 1.5″ (38mm) plumbing connections
• Optimal flow rate: 15 GPM (3.41 m³/h)
• Minimum flow rate: 5 GPM (1.14 m³/h)

Space & Clearance Requirements

• Front (air outlet): 3 meters (9 feet) minimum clearance
• Rear (air inlet): 1 meter (3 feet) minimum clearance
• Sides: 0.5 meter (20 inches) clearance
• Top: 0.5 meter clearance recommended for servicing
• Install on solid, flat surface with slight rearward slope for drainage
• Good air ventilation essential – do NOT install in confined spaces

Location Considerations

✅ Do:

• Install as close to hot tub as possible (minimizes heat loss)
• Position on open metal frame in cold climates (18″ above ground)
• Ensure free airflow from all sides
• Protect from direct snow accumulation
• Install valves inside spa skirt for winterization

❌ Avoid:

• Locations near bedrooms or noise-sensitive areas
• Airtight locations or confined spaces (basements, garages)
• Areas with polluted air, dust, or debris
• Directing fan output into dominant wind directions
• Mounting on solid walls (vibration concerns)

Cold Climate Installation

In freezing climates:

• Elevate unit at least 46cm (18″) above ground on rust-proof metal frame
• Install all valves inside spa skirt to prevent pipe freezing
• Insulate external pipes between spa and heat pump
• Ensure proper drainage slope for condensation water

Compatibility Information

Compatible Gecko Control Systems

✅ Fully Compatible:

• Gecko IN.YT control systems (with RS-485)
• Gecko IN.YE control systems (with RS-485)
• Gecko IN.YJ control systems (with RS-485)

Software Requirements:

• Core 61 revision 54 or higher

Compatible Keypads (Auto-Detected)

All Gecko keypads are compatible and will automatically detect the heat pump:

• IN.K1001+ (color LCD capacitive touchscreen)
• IN.K1000+ (color LCD capacitive touchscreen)
• IN.K800 (color LCD display, 10 keys)
• IN.K500 (color LCD display, 7 keys)
• IN.K330 (color LCD display, 5 keys)

💡 Compatibility Check: If you’re unsure about your system’s compatibility, please contact our team before ordering. We’re happy to help verify!

Maintenance & Winterization

Regular Maintenance

✅ Before Each Heating Season:

• Clear finned heat exchanger of leaves, twigs, and debris
• Clean fan and condenser outflow
• Use compressed air or clean water flush
• Check drainage is unobstructed

✅ Ongoing:

• Ensure proper water filtration to prevent heat exchanger clogging
• Maintain recommended water flow rates
• Keep air intake and exhaust grills clear of ice/snow
• Monitor condensation drainage

Cleaning

• Wipe cover and panels with damp cloth and household cleaner
• ⚠️ Never use cleaners containing sand, soda, acid, or chloride
• ⚠️ Beware products like WD-40 which can damage plastic enclosure
• ⚠️ Fins on heat exchanger are sharp – exercise caution

Winter Shutdown Procedure

⚠️ Important: Improper winterization can cause frost damage. Follow these steps carefully:

1. Disengage main spa power breaker
2. Disconnect power cable from spa control (leave communication cable)
3. Mark valve positions for spring reopening
4. Close input and output valves completely
5. Disconnect water piping inlet and outlet
6. Remove drainage plug and allow complete drainage
7. Blow out with compressed air to remove all residual water
8. Loosely reconnect plumbing and drain plug (to block debris/insects)
9. Cover with protective tarp to prevent snow accumulation
10. Verify all piping between unit and spa is empty
11. Re-engage spa power breaker

⚠️ Safety Note: Cable disconnection should be performed by qualified service personnel only.

Spring Reopening

1. Inspect all pipes for damage
2. Tighten all plumbing connections and drain plug
3. Return valves to marked opening positions
4. Reconnect power cable to spa control
5. Verify communication cable connection
6. Re-engage spa power breaker
7. Unit should be detected automatically

Condensation & Drainage

Normal Operation

The IN.TEMP produces significant condensation during heating mode:

• Air drawn through unit is strongly cooled
• Can produce several litres of water per hour in high humidity
• Water evacuates from bottom of unit via drainage
• This is normal operation, not a leak

Installation Considerations

✅ Must Do:

• Install with slight rearward slope for drainage
• Ensure water drainage doesn’t affect electrical components
• Protect nearby wood/metal from water damage
• Provide adequate drainage path

💡 Expect water flow beneath unit during normal heating operation – this is by design!

Frequently Asked Questions

❓ How much money will I actually save with this heat pump?

Based on UK electricity rates (£0.30/kWh), owners typically save £6,000-£7,000 annually compared to electric heating alone. For a typical 1,500-litre hot tub maintained at 40°C year-round, the heat pump consumes only £1,577 in electricity versus £7,884 for traditional heating. Payback period: 6-12 months for most installations.

❓ Does the heat pump work in winter?

Yes! The IN.TEMP operates in ambient temperatures as low as -5°C (23°F). While efficiency decreases in colder weather (COP drops from 6.13 to 4.48), it still delivers 4-5 times more heat per kW than electric elements. The Smart Heat and Smart Auto modes automatically engage backup electric heating during extreme cold to maintain efficiency.

❓ How loud is this heat pump?

At just 56.5 dB(A) measured at 1 meter distance, the 7.5kW model is quieter than normal conversation (60 dB). It’s significantly quieter than most air conditioning units and won’t disturb neighbors or peaceful spa sessions.

❓ Can I install this myself, or do I need a professional?

While the IN.TEMP features plug-and-play design, we strongly recommend professional installation by a qualified spa technician. Proper installation requires:

• Electrical connection to spa control system
• Plumbing bypass installation with three valves
• Correct positioning for airflow and drainage
• Compatibility verification with your specific control system

Improper installation can void warranty and reduce efficiency.

❓ What’s the difference between the operating modes?

• Eco Heat: Heat pump only, no electric backup (maximum savings)
• Smart Heat: Heat pump primary, electric backup for large temperature differences
• Cool: Cooling mode only (for hot summer days)
• Eco Auto: Automatic heating/cooling, no electric backup
• Smart Auto: Automatic heating/cooling with electric backup when beneficial
• Electric: Electric heating only (heat pump off)

Recommendation: Start with Smart Auto mode for optimal balance of efficiency and performance.

❓ Is the cooling mode useful in the UK climate?

Absolutely! During hot summer days (25°C+), spa water can exceed comfortable temperatures, especially in direct sunlight. The cooling mode actively reduces water temperature, making summer spa sessions far more enjoyable. With climate change bringing warmer UK summers, this feature is increasingly valuable.

❓ How long will the titanium heat exchanger last?

Titanium is virtually corrosion-proof and compatible with all sanitizers (chlorine, bromine, iodine, salt water). With proper maintenance and water chemistry, the heat exchanger should last the lifetime of your spa (15-20+ years). Gecko offers industry-leading reliability with titanium construction.

❓ What size hot tub is this suitable for?

The 7.5kW model is ideal for:

• Small to medium hot tubs: 1,000-2,000 litres (265-530 gallons)
• Standard 5-6 person residential spas
• Most portable hot tubs

For larger spas (2,500+ litres) or very cold climates, consider combining with backup electric heating (Smart Heat mode) or upgrading to a larger model.

❓ Can I use this with my existing electric heater?

Yes! The IN.TEMP is designed to work alongside your existing electric heater. In Smart Heat and Smart Auto modes, the system intelligently decides when to use the heat pump alone (maximum efficiency) and when to engage electric backup (large temperature differences or extreme weather). This hybrid approach delivers the best of both worlds.

❓ Do I need to winterize the heat pump?

In regions with freezing temperatures, yes – winterization is essential to prevent frost damage. The process involves draining all water, blowing out residual moisture with compressed air, and protecting the unit. Alternatively, if you maintain your spa through winter, the heat pump can continue operating down to -5°C with its built-in freeze protection. See the Maintenance & Winterization section for detailed steps.

❓ What warranty is included?

Warranty details vary by region and retailer. Contact Parts4Tubs directly for specific warranty information on your purchase. Gecko is known for industry-leading product reliability and support.

❓ How do I know if my spa control system is compatible?

The IN.TEMP requires:

• Gecko IN.YT, IN.YE, or IN.YJ control system
• RS-485 communication port
• Software core 61 revision 54 or higher

If you’re uncertain about your system, contact us before ordering. Our team can help verify compatibility and may be able to provide software updates if needed.

📄 Downloads & Technical Documentation

Access complete technical specifications, installation guides, and quick reference materials:

📥 Quick Reference Card (opens in new tab) Essential installation connections, operating modes, error codes, and troubleshooting guide. Perfect for installers and technicians.

📥 Product Flyer & Specifications (opens in new tab) Complete specifications, dimensions, performance data, and compatibility information for both 5kW and 7.5kW models.

📥 Complete Technical Manual (TechBook) (opens in new tab) Comprehensive 16-page manual covering safety instructions, detailed installation procedures, operating modes, maintenance schedules, winterization steps, troubleshooting, and full technical specifications.

Why Buy from Parts4Tubs?

✅ Expert Knowledge – Specialists in hot tub equipment and spare parts

✅ Genuine Gecko Products – Authorized dealer, authentic parts only

✅ Technical Support – Pre-sales compatibility verification available

✅ Competitive Pricing – Best value for premium quality

✅ Fast UK Delivery – Quick dispatch from UK stock

✅ Bulk Pricing Available – Contact our sales team for project quotations

Ready to Slash Your Hot Tub Heating Bills?

Upgrade to the Gecko IN.TEMP 7.5kW Heat Pump today and join thousands of satisfied spa owners enjoying:

• ✅ Up to 75% energy savings
• ✅ Year-round perfect water temperature
• ✅ Cooling capability for summer
• ✅ Whisper-quiet operation
• ✅ Eco-friendly heating solution

For large projects or multiple units, contact our sales team for bespoke quotations.

Need Help Choosing?

Don’t wait – start saving money and reducing your carbon footprint today!

⚠️ Important: This product requires professional installation. Electrical and plumbing work should be performed by qualified technicians in accordance with local building codes and regulations. Improper installation may void warranty and create safety hazards.

🌍 Environmental Impact: By choosing the IN.TEMP heat pump, you’re reducing your carbon footprint by approximately 5-6 tonnes of CO₂ per year compared to traditional electric heating. Thank you for choosing sustainable spa enjoyment!