🌊 Remora Professional 19 – 18.9kW Inverter Heat Pump with Wi-Fi for Swimming Pools & Koi Ponds

Transform your pool or Koi pond into a year-round oasis with Britain’s most advanced inverter heat pump. The Remora Professional 19 delivers exceptional 18.9kW heating power combined with whisper-quiet operation and full smartphone control, making it the intelligent choice for discerning pool and pond owners.

With an industry-leading COP of up to 17.05, this premium heat pump generates up to £17.05 worth of heat for every £1 of electricity consumed. Whether you’re heating a 70,000-litre swimming pool or maintaining optimal temperatures for valuable Koi, the Remora Professional 19 offers unmatched efficiency, control, and reliability.

Control from Anywhere in the World – Built-in Wi-Fi connectivity and Smart Life App integration mean you can adjust temperatures, switch modes, set timers, and monitor energy consumption from your smartphone, tablet, or computer. Heading home early and want a warmer pool? Simply open the app and boost the temperature remotely.

Exceptional Energy Efficiency – With COP ratings ranging from 5.01 to an outstanding 17.05 depending on conditions, this heat pump transforms ambient air into heat at remarkable efficiency levels. The advanced DC inverter technology continuously adjusts output to match demand, eliminating the wasteful on-off cycling of traditional fixed-speed units.

Ultra-Quiet Operation – At less than 30dB at 10 metres, the Remora Professional 19 is quieter than a whisper. The stepless DC inverter system with brushless fan motor and twin rotary compressor ensures peaceful operation that won’t disturb you, your neighbours, or your valuable Koi.

Year-Round Reliability – Unlike conventional heat pumps that struggle in cooler weather, the Remora Professional 19 maintains efficient operation down to -15°C, providing reliable heating throughout the British climate including autumn, winter, and early spring.

Premium British Engineering – From the powder-coated galvanised steel casing to the spiral titanium heat exchanger (40% more efficient than standard designs), every component reflects meticulous quality control and engineering excellence.

🎯 Key Features & Benefits

Smart Control & Connectivity

Wi-Fi Control as Standard – Factory-fitted Wi-Fi module connects to your home network for remote access via the Smart Life App (iOS and Android). View real-time water temperature, adjust set points, switch between operating modes, set multiple timers, and access comprehensive energy logs from anywhere with internet connection.

Four Intelligent Operating Modes:

• 🚀 Boost Mode – Maximum heat output for fastest temperature rise, ideal for rapid heating before pool parties or after cooler periods
• 🔇 Silent Mode – Reduced output for ultra-quiet overnight operation, perfect for residential areas with noise-sensitive neighbours
• 🌿 Eco Mode – Optimised for maximum energy efficiency and lowest running costs during routine operation
• 🧠 Smart Mode – Intelligent automatic adjustment that balances speed, efficiency, and quiet operation based on real-time conditions

Advanced Parameter Control – Access detailed operational settings, diagnostic information, fault history, and real-time sensor readings through the controller or app. This feature enables remote troubleshooting by qualified technicians without site visits.

Power Usage Logs – Monitor daily, weekly, and monthly energy consumption to understand running costs and optimise heating schedules.

Automatic Software Updates – When connected to Wi-Fi, the heat pump receives automatic firmware updates to improve performance and add new features.

Advanced Inverter Technology

Full Stepless DC Inverter System – Unlike traditional fixed-speed heat pumps that operate at a single output level, the Remora Professional 19 features a variable-speed twin rotary compressor that continuously adjusts from minimum to maximum capacity. This responsive technology:

• Reaches target temperature up to 50% faster than fixed-speed units
• Maintains precise temperature control within ±0.5°C
• Eliminates temperature fluctuations and overshoot
• Reduces power consumption during steady-state operation
• Extends compressor lifespan by avoiding hard starts

EEV Throttling Technology – Electronic Expansion Valve precisely controls refrigerant flow, increasing COP by up to 20% compared to conventional thermal expansion valves while improving performance across all operating conditions.

Brushless DC Fan Motor – Variable-speed fan adjusts airflow to match demand, reducing noise and energy consumption compared to traditional AC fan motors.

📄 Downloads & Documentation

Installation & Operation Manual 📥
Download Complete Manual (PDF, 42 pages) (opens in new tab)

This comprehensive manual includes detailed installation instructions, wiring diagrams, controller operation guides, maintenance schedules, troubleshooting procedures, error codes, and Wi-Fi setup instructions. Essential reading for installers and owners.

Premium Construction & Components

Spiral Titanium Heat Exchanger – Advanced spiral tube design provides 40% greater heat transfer efficiency than conventional straight-tube titanium exchangers. Pure titanium construction offers superior corrosion resistance for long-term reliability with chlorinated or salt water.

Powder-Coated Galvanised Steel Casing – High-quality matt finish provides attractive appearance and weather protection. The robust casing features integrated fan grille with sleek modern design.

Waterproof Flush-Fit LCD Touch Screen – Full-colour display with intuitive touch controls is completely waterproof (no additional cover required). The flush-mounted design prevents water pooling and maintains clean appearance. Digital readouts show inlet temperature, outlet temperature, set point, operating mode, and system status.

R32 Refrigerant – Eco-friendly refrigerant with lower Global Warming Potential (GWP) than older R410A or R22 refrigerants. R32 provides better energy efficiency and reduced environmental impact while meeting latest environmental regulations.

Winter Cover Included – Protective cover prevents debris and leaves entering the unit during off-season storage, extending equipment lifespan.

Safety & Protection Systems

Comprehensive Protection Features:

• Low/high pressure protection
• High/low temperature protection
• Anti-freeze protection (automatic activation when temperature drops below 5°C)
• Water flow protection (prevents operation without adequate flow)
• High discharge temperature protection
• Compressor over-current protection
• 3-minute restart delay (protects compressor from short-cycling)

Automatic Defrost – Intelligent defrost cycle activates when required to maintain efficiency in cold conditions. Heating indicator flashes during defrost mode.

📊 Complete Technical Specifications

Specification	Details
Model	Remora Professional 19
Heating Capacity (A27/W27)	9.57 ~ 18.9 kW
Heating Capacity (A15/W26)	6.02 ~ 13.8 kW
Coefficient of Performance (A27/W27)	6.63 ~ 17.05
Coefficient of Performance (A15/W26)	5.01 ~ 8.25
Max Input Power (A27/W27)	0.99 ~ 2.85 kW
Max Input Power (A15/W26)	1.1 ~ 2.75 kW
Power Supply	230V / 50Hz
Maximum Current Draw	18.48A
Recommended Circuit Protection	25A Type C MCB (Circuit Breaker)
Refrigerant Type	R32 (eco-friendly, low GWP)
Heat Exchanger Material	Spiral Titanium
Compressor Type	Twin Rotary DC Inverter
Fan Motor Type	Brushless DC Variable Speed
Fan Air Direction	Horizontal Discharge
Nominal Water Flow Rate	7–9 m³/hour
Water Connections	1½” BSP female thread / solvent socket
Operating Temperature Range	-15°C to +43°C ambient
Water Temperature Range	5°C to 40°C (adjustable)
Noise Level (at 10m distance)	<30 dB(A)
Dimensions (L × W × H)	1020 × 408 × 715 mm
Weight	62 kg
Wi-Fi Connectivity	Built-in (Smart Life App compatible)
Control Interface	Waterproof LCD Touch Screen + App
Protection Rating	IPX4 (outdoor weather protected)
Warranty	4 years parts & labour; 10 years compressor & heat exchanger (parts only years 5-10)

Technical Note: A27/W27 indicates air temperature 27°C and water temperature 27°C (optimal conditions). A15/W26 indicates air temperature 15°C and water temperature 26°C (typical UK conditions). COP and capacity vary with ambient and water temperatures.

🏊 Pool & Pond Sizing Guide

Recommended Applications:

Pool/Pond Volume	Temperature Rise	Suitability
Up to 50,000 litres	1°C per day	✅ Excellent
50,001 – 70,000 litres	1°C per day	✅ Very Good
70,001 – 90,000 litres	0.8°C per day	✅ Good
90,001 – 110,000 litres	0.6°C per day	⚠️ Adequate (consider pool cover)
Over 110,000 litres	Variable	⚠️ Consider larger model or dual units

Calculations based on moderate UK climate (15°C ambient) and uncover pool. With a thermal pool cover, suitable volume increases by approximately 40%.

⏱ Estimated Heat-Up Times

Understanding how quickly your pool will heat helps with planning and expectations. The table below shows estimated times to increase water temperature under typical UK conditions (15°C ambient air temperature, 80% humidity).

Heat-Up Time Estimates (Typical UK Conditions)

Pool Volume	Initial Temp	Target Temp	Temperature Rise	Estimated Time*
40,000 litres	18°C	24°C	6°C	18-22 hours
40,000 litres	20°C	26°C	6°C	18-22 hours
50,000 litres	18°C	24°C	6°C	23-28 hours
50,000 litres	20°C	28°C	8°C	31-38 hours
60,000 litres	16°C	24°C	8°C	37-46 hours
60,000 litres	20°C	26°C	6°C	28-35 hours
70,000 litres	18°C	25°C	7°C	38-47 hours
80,000 litres	18°C	26°C	8°C	50-62 hours

Formula Used: Time (hours) = (Pool Volume in litres × Temperature Rise in °C × 1.16) ÷ (Heat Pump Average kW × 1000)

⚠️ Important Disclaimers:

• These are estimates only and actual performance varies significantly based on multiple factors
• Warmer ambient temperatures produce faster heating; colder temperatures slower heating
• Wind, humidity, and overnight temperature drops significantly affect performance
• Heat loss continues during heating – a thermal pool cover can reduce heating time by 30-50%
• Calculations assume continuous operation in Boost mode with average output of 12 kW
• Initial heating from very cold water takes longer than routine temperature maintenance
• Koi ponds with heavy stocking may benefit from slightly lower target temperatures

💡 Pro Tip: For fastest results, use a thermal pool cover during heating and overnight. This can reduce heat-up time by 30-50% and ongoing running costs by up to 70%.

💰 Running Cost Comparison

Based on average UK electricity prices (£0.28 per kWh, 2024) and using the heat pump’s average COP of 12.0 under moderate conditions:

Cost to Raise Pool Temperature by 5°C

Pool Volume	Heat Required	Without Heat Pump	With Remora Pro 19 (COP 12)	Savings
40,000 litres	232 kWh	£65.00 (electric)	£5.42	£59.58
50,000 litres	290 kWh	£81.20 (electric)	£6.77	£74.43
60,000 litres	348 kWh	£97.44 (electric)	£8.12	£89.32
70,000 litres	406 kWh	£113.68 (electric)	£9.47	£104.21

Versus Gas Heating: At £0.06 per kWh gas with 85% efficiency boiler, the heat pump still offers approximately 40% cost savings while producing zero local emissions.

Annual Running Cost Example (Typical 60,000L Pool):

• Heating season: April-September (6 months)
• Average use: Maintaining 26°C
• Estimated annual electricity: 2,500 kWh
• Annual heating cost: Approximately £58 (vs £350+ with direct electric or £180+ with gas)

🔧 Installation Requirements

Electrical Installation

⚠️ Professional Installation Required – This 18.9kW model requires installation by a qualified electrician. Unlike the smaller 8kW, 10kW, and 14kW models in the Remora Professional range, this unit does NOT include a 13A plug.

Electrical Specifications:

• Dedicated 230V circuit required
• Maximum current draw: 18.48A
• Recommended protection: 25A Type C MCB
• Cable specification: 3 × 2.5mm² minimum
• Earth bonding essential for safety
• RCD protection strongly recommended

Physical Installation

Location Requirements:

• Must be installed outdoors in well-ventilated area
• Minimum clearances: 500mm sides, 2000mm front (air discharge), 300mm rear
• Level, stable base (concrete pad recommended)
• Avoid enclosed spaces or areas where discharged cool air can recirculate
• Keep away from dense vegetation, fences, or walls that restrict airflow
• Position away from bedroom windows (although extremely quiet)
• Condensate drain access required (produces several litres per hour in humid conditions)

Plumbing Installation:

• Install downstream of pool filter and pump
• Install upstream of chemical feeders, ozonators, or chlorinators
• Water connections: 1½” BSP female thread or solvent socket
• Recommended flow rate: 7-9 m³/hour
• Bypass valve system recommended for easy maintenance
• Quick-disconnect unions facilitate servicing
• Ensure water inlet is higher than pool surface level (for above-ground pools)

Placement Considerations:

• Can be positioned at ground level for in-ground pools
• For above-ground pools, position at ground level (below waterline) – no need to elevate
• Ensure condensate drainage to suitable location
• Consider future access for maintenance and servicing
• Wi-Fi signal strength at installation location (10m extension cable included)

🌡️ Seasonal Performance Expectations

The Remora Professional 19’s inverter technology provides outstanding efficiency across all seasons:

Spring (March-May) | 10-15°C Ambient

• COP: 8-12 typical
• Excellent heating performance as temperatures rise
• Ideal time to bring pool up to temperature for season
• Moderate electricity consumption

Summer (June-August) | 18-25°C Ambient

• COP: 12-17 typical
• Peak efficiency conditions
• Minimal electricity consumption for temperature maintenance
• Can provide cooling function if desired (reduce water temperature on hot days)

Autumn (September-November) | 10-15°C Ambient

• COP: 7-11 typical
• Extends swimming season into autumn
• Use thermal cover for best efficiency
• Excellent for maintaining Koi pond temperatures

Winter (December-February) | 0-8°C Ambient

• COP: 5-8 typical
• Continues operation down to -15°C
• Essential for Koi ponds requiring stable winter temperatures
• Higher electricity consumption but still more efficient than electric heaters
• Automatic anti-freeze protection activates below 5°C water temperature

🛡️ Warranty & Support

Comprehensive Warranty Coverage:

• Years 1-4: Full parts and labour warranty
• Years 5-10: Compressor and heat exchanger parts warranty
• Warranty requires installation by qualified professional and annual servicing
• Extended warranty options available

Customer Support:

• UK-based technical support team
• Remote diagnostics via Wi-Fi connectivity
• Comprehensive installation and operation manual
• Video guides and troubleshooting resources
• Nationwide network of approved service engineers

🎓 Frequently Asked Questions

Q: How long will it take to heat my pool?

A: This depends on several factors including pool volume, starting temperature, target temperature, ambient conditions, and whether you use a pool cover. As a general guide, a 60,000-litre pool might take 28-35 hours to rise from 20°C to 26°C under typical UK spring/autumn conditions (15°C ambient). See our heat-up time estimates table above for more examples. Using a thermal pool cover can reduce heating time by 30-50%.

Q: Do I need a pool cover?

A: While not essential, a thermal pool cover is highly recommended. It can reduce heat-up times by 30-50%, cut ongoing running costs by up to 70%, and significantly improve efficiency. The investment in a good quality cover typically pays for itself within one season through reduced electricity costs.

Q: Can this heat pump heat my pool in winter?

A: Yes, the Remora Professional 19 operates efficiently down to -15°C ambient temperature. However, heat output and efficiency decrease as ambient temperatures drop. For year-round swimming pools in the UK, expect longer heat-up times and higher running costs during winter months. A thermal cover becomes essential for winter use. The unit is particularly popular with Koi pond owners who need stable water temperatures year-round.

Q: How quiet is the Remora Professional 19?

A: Exceptionally quiet at less than 30dB at 10 metres distance. For comparison, this is quieter than a whisper (30dB) and significantly quieter than a refrigerator (40dB) or normal conversation (60dB). The Silent mode further reduces noise output for overnight operation in residential areas.

Q: What is COP and why does it vary so much?

A: COP (Coefficient of Performance) is the ratio of heat output to electrical input. A COP of 12 means the heat pump generates 12kW of heat for every 1kW of electricity consumed. COP varies based on ambient air temperature and water temperature – warmer air and cooler water produce higher COPs. The Remora Professional 19’s COP ranges from 5.01 (cold conditions) to 17.05 (optimal conditions).

Q: Can I control the heat pump when I’m away from home?

A: Absolutely! The built-in Wi-Fi and Smart Life App allow complete control from anywhere with internet connection. Adjust temperature, change modes, set timers, and monitor energy consumption from your smartphone, tablet, or computer anywhere in the world. Perfect for warming the pool before returning from holiday or checking Koi pond temperatures remotely.

Q: Is professional installation really necessary?

A: Yes. This 18.9kW model requires a dedicated electrical circuit installed by a qualified electrician, proper plumbing integration with your pool’s filtration system, and correct positioning for optimal performance. Professional installation ensures safety, efficiency, warranty coverage, and compliance with building regulations. The smaller models (8kW, 10kW, 14kW) come with plugs for outdoor sockets, but this powerful unit needs hardwiring.

Q: How much does it cost to run?

A: Running costs depend on pool volume, target temperature, ambient conditions, usage patterns, and electricity prices. As a guide, maintaining a 60,000-litre pool at 26°C throughout a typical 6-month swimming season costs approximately £58 in electricity (based on average COP of 12 and £0.28/kWh). This compares to £350+ for direct electric heating or £180+ for gas heating. Using a thermal pool cover reduces costs further.

Q: What maintenance is required?

A: The Remora Professional 19 requires minimal maintenance:

• Clean or backwash pool filter regularly (poor water flow is the most common issue)
• Check water flow and pressure periodically
• Keep area around unit clear of debris and vegetation
• Clean air intake fins quarterly with garden hose (low pressure)
• Annual professional service recommended (checking refrigerant, electrical connections, sensors)
• Winterize properly if shutting down for extended periods (drain water from heat exchanger)
• Use supplied winter cover during off-season storage

Q: Will this work with my existing pool pump and filter?

A: Yes, the heat pump connects to your existing pool plumbing downstream of the filter and pump. Your pool pump must provide adequate water flow (7-9 m³/hour) for optimal performance. Most standard pool pumps easily meet this requirement. The heat pump requires the pool pump to be running in order to operate – this ensures proper water circulation.

Q: Can it cool as well as heat?

A: Yes, the Remora Professional 19 features both heating and cooling modes. The cooling function can reduce water temperature on exceptionally hot summer days if desired, though most UK pool owners primarily use the heating function. Some users activate cooling in late summer to extend the swimming season as air temperatures drop.

Q: What happens if there’s a power cut?

A: The heat pump will stop operating and restart automatically once power is restored (after the built-in 3-minute restart delay). All settings including temperature set point, operating mode, and timer settings are retained in memory. The Wi-Fi connection will reconnect automatically when network access is restored.

Q: Is the R32 refrigerant safe and environmentally friendly?

A: Yes, R32 is a modern, eco-friendly refrigerant with significantly lower Global Warming Potential (GWP of 675) compared to older refrigerants like R410A (GWP 2,088) or R22 (GWP 1,810). R32 provides better energy efficiency, is non-ozone depleting, and meets all current environmental regulations. It is mildly flammable (A2L classification) but installed in hermetically sealed systems with comprehensive safety protections.

✅ What’s Included

• Remora Professional 19 Heat Pump (18.9kW)
• Waterproof LCD Touch Screen Controller (pre-installed)
• Built-in Wi-Fi Module with 10m Extension Cable
• Winter Protective Cover
• Installation and Operation Manual (42 pages)
• Condensate Drain Fitting
• Factory Warranty Documentation

Not Included (Typically Required):

• Electrical installation (by qualified electrician)
• Water plumbing connections and valves
• Thermal pool cover (highly recommended)
• Concrete base pad (recommended)

🚚 Delivery & Installation Information

Delivery: The Remora Professional 19 is carefully packaged and typically delivered within 3-5 working days to mainland UK addresses. The unit weighs 62kg and requires two people for safe handling.

Installation: Professional installation by a qualified electrician and pool technician is required. Installation typically takes 4-6 hours depending on site conditions and complexity. Ensure electrical circuit, water plumbing, and suitable location are prepared in advance.

Commissioning: After installation, the system should be commissioned by the installer including leak testing, water flow verification, electrical safety checks, Wi-Fi setup, and operational demonstration.

🌟 Why Buy from Parts4Tubs?

• Authorised UK Dealer – Genuine Remora products with full manufacturer warranty
• Expert Technical Support – Our team understands pool and Koi pond heating systems
• Competitive Pricing – Best value on premium heating solutions
• Fast UK Delivery – Quick dispatch to get your project moving
• Installation Support – Guidance connecting you with qualified installers in your area

📞 Need Help Choosing?

Not sure if the Remora Professional 19 is the right size for your pool or pond? Our technical team can help you:

• Calculate the optimal heat pump size for your specific volume
• Estimate realistic heat-up times for your location and conditions
• Compare running costs versus your current heating method
• Assess installation requirements and complexity
• Recommend compatible accessories like pool covers and timers

Contact us today for expert, no-obligation advice on selecting the perfect heating solution for your pool or Koi pond.

🔍 Technical Summary

The Remora Professional 19 represents the pinnacle of pool and pond heating technology, combining British engineering excellence with cutting-edge Japanese inverter technology. The 18.9kW maximum output provides powerful heating for large residential pools and substantial Koi ponds, while the stepless inverter system ensures whisper-quiet operation and outstanding energy efficiency.

With built-in Wi-Fi connectivity, four intelligent operating modes, and comprehensive smart controls via the Smart Life App, this heat pump offers unprecedented convenience and control. The spiral titanium heat exchanger, twin rotary compressor, EEV throttling technology, and eco-friendly R32 refrigerant deliver consistent, reliable performance throughout the year, even in challenging British weather conditions down to -15°C.

Backed by a comprehensive 4-year parts and labour warranty (plus 10-year coverage on compressor and heat exchanger), the Remora Professional 19 provides peace of mind alongside exceptional performance. Whether you’re maintaining perfect temperatures for prized Koi or extending your swimming season, this premium heat pump delivers efficient, quiet, and reliable heating year after year.

Investment Protection: At typical UK electricity prices, the Remora Professional 19 saves hundreds of pounds annually compared to direct electric heating or traditional gas boilers. The exceptional efficiency and low running costs mean the heat pump typically pays for itself within 3-4 years through energy savings alone, while providing enhanced comfort, convenience, and environmental benefits.