🌊 Comfortline Inverter Heat Pump 7 kW with WiFi – Ultra-Efficient Pool & Hot Tub Heating

Transform your swimming pool or hot tub experience with the Comfortline Inverter Heat Pump 7kW – the smart choice for cost-conscious pool owners who refuse to compromise on comfort. This intelligent heating system combines cutting-edge DC inverter technology with integrated WiFi control, delivering whisper-quiet operation and exceptional energy efficiency that slashes running costs by up to 66%.

Perfect for pools between 15-30m³ and hot tubs, this heat pump adapts its heating capacity from 20% to 100% based on your actual needs. When you need rapid heating at season start, it runs at full power. When maintaining temperature, it drops to low-speed operation for maximum energy savings with a remarkable COP of up to 10.3.

💎 Key Features That Set This Heat Pump Apart

Intelligent Inverter Technology
Unlike traditional on/off heat pumps, the Comfortline continuously adjusts its compressor and fan speed from 20-100% capacity. This means it only uses the exact amount of energy needed, resulting in superior efficiency and dramatically reduced electricity bills.

Two Smart Operating Modes

• Smart Mode – Full 100% to 20% variable capacity for maximum performance and fastest heating
• Silence Mode – Capped at 80% to 20% capacity, reducing noise by an additional 3 dB(A) for peaceful overnight operation

30% Larger Titanium Spiral Heat Exchanger
The advanced spiral design increases heat transfer surface area by 30% compared to standard tube-in-tube exchangers, boosting efficiency and longevity. Titanium construction ensures complete salt water compatibility up to 3.5% (35g per litre).

HP Booster Technology
Integrated high-pressure booster adds an extra 20% to the COP performance, making this heat pump significantly more efficient than competitors at every temperature.

Premium GMMC DC Inverter Compressor
World-class compressor delivers exceptional reliability, smooth operation, and the flexibility to adjust output precisely to your heating demand. Backed by a 2-year warranty.

Auto-Defrost System
Automatic defrost function maintains efficiency down to 0°C air temperature. Manual defrost override available when needed.

WiFi Control Built-In
Adjust settings, monitor inlet temperature, switch between Smart and Silence modes, and track performance from anywhere using your smartphone or tablet.

Whisper-Quiet Operation
At just 42.8 dB(A) average sound pressure (comparable to a refrigerator), this is approximately 7 times quieter than conventional pool heaters. Silence Mode drops noise even further for near-silent night-time heating.

Simple Control Panel
Easy-to-read LED display shows inlet temperature, set temperature, operating mode, and compressor status. Intuitive up/down temperature adjustment from 18°C to 40°C.

Comprehensive Protection Systems
High/low pressure protection, water flow monitoring, over-temperature safeguards, anti-freeze protection, and automatic fault diagnosis with clear error codes.

📊 Complete Technical Specifications

Model AMIR07 – Performance Data

Power & Electrical

Water Connection & Flow

Physical & Acoustic

Warranty Coverage

⚠️ Important Note: This is a UK & Europe model only. Additional freight costs apply for European deliveries outside the UK.

🌡️ Pool Sizing Guide & Heat-Up Time Estimates

Choosing the right heat pump capacity is essential for efficient heating. The 7kW Comfortline is ideal for pools and hot tubs between 15-30m³ (3,300-6,600 gallons).

Recommended Pool Sizes

Estimated Heat-Up Times

⏱️ How long to heat your pool? Use these estimates as a guide. Actual times vary based on ambient temperature, wind exposure, pool insulation, and whether you use a pool cover.

Formula Used: Time (hours) = (Pool Volume m³ × Temp Rise °C × 1.16) ÷ Heat Pump kW

Heat-Up Times at 15°C Air Temperature (5.0 kW output)

Heat-Up Times at 26°C Air Temperature (7.0 kW output)

💡 Pro Tips for Faster Heating:

✅ Always use a quality pool cover – reduces heat-up time by 40-60%
✅ Run the heat pump during the warmest part of the day for maximum efficiency
✅ Insulate pipes between the pool and heat pump to minimize heat loss
✅ Maintain proper water flow rate (2-4 m³/hour for optimal performance)
✅ Consider starting heating 2-3 days before you plan to use the pool

⚠️ Important Disclaimer: These are theoretical estimates calculated under ideal laboratory conditions. Real-world performance depends on multiple factors including ambient air temperature, humidity, wind speed, pool insulation, water circulation rate, pool cover usage, and heat loss through the pool structure. Always allow extra time for initial heating, especially in cooler weather.

Why Pool Owners Choose the Comfortline 7kW:

✅ Dramatically Lower Running Costs – Proven 66% savings versus traditional electric heaters, with average COP of 9.0 (up to 10.3 at optimal conditions)

✅ WiFi Control as Standard – Adjust temperature, monitor performance, and switch modes remotely from your smartphone

✅ 7 Times Quieter – Ultra-silent operation at just 42.8 dB(A) average, with dedicated Silence Mode dropping even lower for peaceful night-time heating

✅ Lightning-Fast Heat-Up – 8x faster than standard 3kW electric heaters thanks to intelligent inverter technology

✅ All-Season Performance – Reliable operation from 0°C to 43°C with automatic defrost function

✅ Eco-Friendly R32 Refrigerant – 68% lower global warming potential than traditional R410A refrigerants

✅ Built to Last – Steel body with plastic coating, 5-year heat exchanger warranty, premium GMMC inverter compressor

💰 Running Cost Comparison & Energy Savings

One of the most compelling reasons to choose the Comfortline Inverter Heat Pump is the dramatic reduction in operating costs compared to traditional heating methods.

Real-World Cost Savings

Based on owner testimonial: “The cost savings that I have made with this model have been huge – 66% cheaper on my hot tub running costs and 8x faster on the heat-up times versus my old 3kW electric heater.”

How Much Can You Save?

💡 Why Inverter Technology Saves More Money:

Traditional on/off heat pumps run at 100% capacity constantly, cycling on and off. This wastes energy and causes efficiency drops. The Comfortline’s inverter compressor adjusts from 20-100% capacity, running continuously at the optimal speed for current conditions. This results in:

• Higher average COP across all operating conditions
• Less electrical current spikes from compressor start/stop cycles
• Longer equipment life due to reduced mechanical stress
• More stable pool temperature with minimal overshoot

Seasonal Operating Costs

Example: 180-Day Pool Season (15-20m³ pool, maintaining 28°C)

• Traditional 12.5kW On/Off Heat Pump: Approximately 2,000 kWh consumption
• 12.5kW Comfortline Inverter: Approximately 700 kWh consumption
• Potential Annual Savings: 1,300 kWh (£390+ at £0.30/kWh)

Note: Proportional savings apply to the 7kW model for appropriately sized pools

🔧 Installation Requirements & Clearances

Professional installation by a qualified technician is mandatory for warranty compliance and safe operation.

Minimum Installation Clearances

Critical spacing requirements for optimal performance:

⚠️ DO NOT INSTALL:

• In enclosed spaces or indoors without proper ventilation
• Where air inlet or outlet can be blocked by vegetation, walls, or other obstructions
• In locations exposed to corrosive fumes or chemicals
• Where condensate drainage cannot be properly managed

📄 Downloads & Technical Documentation

Access complete technical specifications, installation guides, and operation manuals:

📥 Download Product Manual (PDF) (opens in new tab)
Complete installation instructions, wiring diagrams, operational guide, troubleshooting, and maintenance procedures. Essential reading for installers and owners. 21 pages.

📥 Download Product Brochure (PDF) (opens in new tab)
Full technical specifications across the entire Comfortline range, COP performance data, energy comparison charts, and key feature explanations. 3 pages.

Installation Checklist

✅ Solid, level concrete foundation or anti-vibration mounting brackets
✅ Hard-wired electrical connection with RCD protection (no plug permitted)
✅ Proper earthing/grounding connection
✅ Circulation pump with minimum 10m head and 2-4 m³/hour flow
✅ Water pipe runs between pool and heat pump kept to maximum 10m
✅ Insulation on all pipe runs to minimize heat loss
✅ Bypass valve system for easy servicing
✅ Condensate drainage pipe connected to unit base
✅ Connection kit with appropriate unions and check valves

💡 Recommended: Use the dedicated Air Source Connection Kit which includes everything needed: bypass valve setup, check valve, unions, elbows, and pipework.

Electrical Installation Requirements

• Qualified electrician installation mandatory
• Hard-wired connection (no plug)
• 230V 50Hz single-phase supply
• 3 × 1.5mm² power cable (up to 10m run)
• 8A breaker with 30mA residual current device (RCD)
• 8A fuse
• Proper earthing essential

⚠️ Safety Warning: Incorrect installation can result in equipment damage, injury, or death. Only qualified professionals should install this equipment.

❓ Frequently Asked Questions

Q: How much does it cost to run the Comfortline 7kW heat pump?
A: Running costs depend on your electricity rate, ambient temperature, and pool size. With an average COP of 9.0, you get 9kW of heating for every 1kW of electricity consumed. This means approximately 66-89% lower costs compared to electric heaters. For a typical 20m³ pool, expect running costs around £15-30 per month during active season, compared to £100+ for electric heating.

Q: Can I install this heat pump myself to save money?
A: No. Professional installation by a qualified technician is mandatory for warranty coverage and safety compliance. The unit requires hard-wired electrical connection, proper water flow management, and precise placement for optimal performance. DIY installation voids all warranties and creates safety hazards.

Q: Will this heat pump work in winter or cold weather?
A: Yes, the Comfortline operates reliably from 0°C to 43°C ambient temperature with automatic defrost. However, efficiency decreases as temperature drops – at 15°C air temp, output is 5.0 kW (COP 6.0), while at 26°C air temp, output increases to 7.0 kW (COP 10.3). For year-round use in very cold climates, consider oversizing the heat pump or using a pool cover to reduce heat loss.

Q: How loud is this heat pump? Will it disturb my neighbors?
A: The Comfortline is exceptionally quiet at an average 42.8 dB(A) – comparable to a refrigerator and about 7 times quieter than traditional pool heaters. At 10 meters distance, sound drops to just 18.8-30.2 dB(A). The dedicated Silence Mode reduces noise by an additional 3 dB(A) for virtually silent night-time operation. Most installations are unnoticeable to neighbors.

Q: Is WiFi control really necessary? How does it work?
A: WiFi control (included as standard on this model) adds significant convenience. You can remotely adjust temperature, switch between Smart and Silence modes, monitor inlet temperature, and check system status from your smartphone. This is particularly useful for starting heating before arriving at your pool, troubleshooting issues, or adjusting settings without going outside. While not essential, most users find it invaluable.

Q: What size pool is this 7kW model suitable for?
A: The AMIR07 is recommended for pools between 15-30 m³ (3,300-6,600 gallons). Hot tubs and small plunge pools (10-15m³) will heat very quickly. Larger pools (25-30m³) are suitable but will experience longer heat-up times. If your pool exceeds 30m³, consider the 9kW (AMIR09) or 13kW (AMIR13) models for better performance.

Q: Do I need to drain the heat pump in winter when not in use?
A: Yes, absolutely. If you’re closing your pool for winter, you must drain all water from the heat exchanger to prevent freeze damage. Even with the auto-defrost function, standing water can freeze when the unit is powered off, potentially cracking the titanium heat exchanger. Use the drain plug on the inlet pipe connection to fully drain the unit, then cover it for winter storage.

Q: Can I use this with a salt water pool or hot tub?
A: Yes! The titanium spiral heat exchanger is specifically designed for salt water compatibility up to 3.5% salinity (35g per litre). Titanium is highly corrosion-resistant, making this heat pump ideal for saltwater chlorination systems. However, maintain proper water chemistry to maximize equipment lifespan.

Q: How long does it take to heat my pool from cold?
A: Heat-up time depends on pool volume, starting temperature, ambient air temperature, and whether you use a pool cover. As a guide, a 20m³ pool heated from 15°C to 28°C (13°C rise) takes approximately 50 hours at 26°C air temp, or 70 hours at 15°C air temp. Using a quality pool cover can reduce these times by 40-60%. See the detailed heat-up time tables above for more scenarios.

Q: What maintenance does the Comfortline heat pump require?
A: Maintenance is minimal. Regularly check that the air inlet and outlet are free from debris and obstructions. Clean the exterior with mild detergent and water – never use solvents or harsh chemicals. Inspect electrical connections and mounting bolts periodically. Have a professional service check refrigerant levels and system performance annually. In winter, drain the unit completely if not in use.

Q: What’s the difference between Smart Mode and Silence Mode?
A: Smart Mode allows the full variable capacity range (20-100%), optimizing for fastest heating and maximum performance. Silence Mode caps maximum capacity at 80%, reducing noise by 3 dB(A) while still maintaining efficient heating. Use Smart Mode during the day for rapid heating, and switch to Silence Mode at night for peaceful operation.

Q: Is the R32 refrigerant safe? What are the environmental benefits?
A: R32 is a modern, eco-friendly refrigerant with a Global Warming Potential (GWP) of 675 – 68% lower than the older R410A refrigerant (GWP 2,088). It’s also more energy-efficient and has zero ozone depletion potential. R32 is widely adopted across Europe as the responsible choice for heat pump applications. The refrigerant is safely sealed within the system and poses no risk during normal operation.

Q: What warranty is included and what does it cover?
A: The heat exchanger is covered for 5 years (parts only after first 12 months). The compressor and all other components are covered for 2 years (parts only after first 12 months). The casing is covered for 2 years. Warranty requires professional installation and proof of regular maintenance. Labor costs are not included after the first year.

🎯 Is the Comfortline 7kW Right for Your Pool?

This heat pump is PERFECT for you if:

✅ You own a pool or hot tub between 15-30 m³ (3,300-6,600 gallons)
✅ You want to dramatically reduce heating costs (proven 66%+ savings)
✅ You value quiet operation that won’t disturb family or neighbors
✅ You appreciate smart technology and WiFi control convenience
✅ You’re committed to eco-friendly heating solutions
✅ You want reliable performance even in cooler UK weather (down to 0°C)
✅ You plan for professional installation and proper maintenance

Consider a different model if:

❌ Your pool exceeds 30 m³ – upgrade to AMIR09 (9kW) or AMIR13 (13kW)
❌ You need heating in sub-zero temperatures regularly – consider commercial-grade models
❌ You require instant heating – heat pumps excel at maintenance, not rapid heat-up
❌ You’re not willing to invest in professional installation

📦 What’s Included in the Box

• 1× Comfortline Inverter Heat Pump AMIR07 unit
• 1× User manual and installation guide
• 1× Condensate drainage nozzle
• 1× Control panel overlay
• Basic mounting hardware

You Will Need to Purchase Separately:

• Air Source Connection Kit (recommended)
• 2-inch flapper check valve
• Bypass valve assembly
• Water circulation pump (if not already installed)
• Insulated pipework
• Professional installation services

🏆 Real Owner Review: Why I Chose the Comfortline

“I chose the Comfortline Heat Pump for my own DIY Hot Tub. I have also supplied this unit to customers too. For me, the cost savings that I have made with this model have been huge – 66% cheaper on my hot tub running costs and 8x faster on the heat-up times versus my old 3KW electric heater.

I love the simplicity of the unit. The simple controls, the almost lack of complicated features means it is a case of turning it on and setting a temperature, that is all. WiFi would be a ‘nice-have’ rather than a ‘must have’ for most people, but this model now includes it as standard.

For the price, I think you will struggle to find a better unit.”

— Verified Owner & Industry Professional

🚀 Ready to Transform Your Pool Heating?

The Comfortline Inverter Heat Pump 7kW with WiFi delivers unmatched efficiency, whisper-quiet operation, and intelligent temperature control at an exceptional price point. Backed by comprehensive warranties and designed for the demanding UK climate, this is the smart investment that pays for itself through dramatically reduced running costs.

Don’t let high heating bills keep you from enjoying your pool or hot tub. Upgrade to intelligent inverter technology and experience the difference that true efficiency makes.

⚠️ UK & Europe Model Only – Additional freight charges apply for European deliveries outside the UK.

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