💧 Aquagem InverMaster IM25 – 1.1kW Variable Speed Inverter Pool Pump

Transform Your Pool Experience with Ultra-Silent, Energy-Saving Inverter Technology – Save Up to 80% on Running Costs

📋 Product Overview

The Aquagem InverMaster IM25 represents a breakthrough in pool pump technology, combining cutting-edge InverSilence technology with intelligent automation to deliver exceptional performance at a fraction of traditional running costs. This 1.1kW variable speed inverter pump is engineered for medium-sized pools between 40-70m³, providing whisper-quiet operation starting from just 36 dB(A) – that’s up to 40 times quieter than conventional single-speed pumps.

Featuring a brushless DC IE5 motor and advanced volute hydraulic structure, the IM25 automatically adjusts its speed between 30% and 120% to match your pool’s exact requirements. The result? Maximum efficiency, minimal energy consumption, and a peaceful poolside environment. With built-in WiFi/Bluetooth connectivity, full touchscreen control, and smart AI-driven automation, the InverMaster IM25 puts you in complete control while dramatically reducing your electricity bills.

⭐ Key Features

✅ InverSilence Technology – Proprietary combination of inverter drive, volute hydraulic structure, and IE5 brushless DC motor for unparalleled quiet operation starting from just 36 dB(A)

✅ Up to 80% Energy Savings – Full inverter technology intelligently adjusts motor speed between 30%-120%, dramatically reducing electricity consumption compared to single-speed pumps

✅ Water-Cooled Design – Eliminates the need for noisy cooling fans, achieving up to 40 times quieter operation than conventional pumps

✅ Smart Touchscreen Controller – Integrated full-touch display showing real-time power consumption, flow rate, and running capacity with intuitive operation

✅ WiFi & Bluetooth Connectivity – Control and monitor your pump remotely via the InverFlow smartphone app, with timer programming and system diagnostics

✅ AI/MI Mode Selection – Choose between Auto Inverter Mode (automatic flow adjustment) or Manual Inverter Mode for complete control over pump performance

✅ Self-Priming Function – Automatic 1500-second priming cycle ensures reliable startup every time, with manual override option available

✅ Built-in Protection Systems – Comprehensive safety features including no-water protection, over-temperature protection, undervoltage protection, and motor overload protection

✅ External Control Options – Compatible with RS485 Modbus, digital input, analog input (0-10V or 0-20mA), and relay output for integration with automation systems

✅ Salt Water Compatible – Suitable for salt chlorinated pools with concentrations up to 0.5% (5g/L)

🔧 Technical Specifications

Specification	Details
Model	IM25
Maximum Power (P1)	1.10 kW
Supply Voltage	220-240V / 50-60Hz
Current Consumption	4.8 A
Maximum Water Flow (Qmax)	28.0 m³/h
Maximum Head (Hmax)	20.0 m
Water Flow at 8m Head	25.0 m³/h
Water Flow at 10m Head	21.5 m³/h
Recommended Pool Size	40-70 m³
Speed Range	30% – 120% adjustable
Noise Level	From 36 dB(A)
Motor Type	IE5 DC Brushless
Mechanical Seal	SUS316 Stainless Steel
Protection Class	Class F, IP55
Ambient Temperature Range	-10°C to 42°C
Water Temperature Range	5°C to 50°C
Maximum Installation Height	2m above water level
Salt Concentration Tolerance	Up to 0.5% (5g/L)
Humidity Tolerance	≤90% RH at 20°C
Recommended Pipe Size	63mm
Pump Dimensions	535mm (L) x 305mm (W) x 246mm (H)

💰 Usage Costs & Running Expenses

📊 Annual Running Cost Calculation

The InverMaster IM25’s variable speed technology delivers remarkable energy savings compared to traditional single-speed pumps. Here’s how the costs compare:

Assumptions:

• UK electricity rate: £0.2635 per kWh (Q4 2025 Ofgem price cap)
• Pool season: 180 days (6 months, April-September)
• Daily operation: 8 hours filtration

🏊 Scenario 1: Seasonal Residential Pool (6 Months Operation)

InverMaster IM25 at 60% Capacity (Typical Filtration Mode):

• Power consumption at 60%: ~0.45 kW
• Daily usage: 8 hours × 180 days = 1,440 hours/year
• ✅ Annual energy: 0.45 kW × 1,440 hours = 648 kWh
• ✅ Annual cost: 648 kWh × £0.2635 = £170.75

Traditional 1.1kW Single-Speed Pump (Full Power):

• Power consumption: 1.1 kW constant
• ❌ Annual energy: 1.1 kW × 1,440 hours = 1,584 kWh
• ❌ Annual cost: 1,584 kWh × £0.2635 = £417.38

💵 Annual Saving: £246.63 (59% reduction)

🏢 Scenario 2: Commercial Pool / Year-Round Operation

InverMaster IM25 at 70% Capacity (16 hours/day, 365 days):

• Power consumption at 70%: ~0.55 kW
• Annual usage: 16 hours × 365 days = 5,840 hours/year
• ✅ Annual energy: 0.55 kW × 5,840 hours = 3,212 kWh
• ✅ Annual cost: 3,212 kWh × £0.2635 = £846.36

Traditional 1.5kW Single-Speed Pump (Comparable Output):

• Power consumption: 1.5 kW constant
• ❌ Annual energy: 1.5 kW × 5,840 hours = 8,760 kWh
• ❌ Annual cost: 8,760 kWh × £0.2635 = £2,308.26

💷 Annual Saving: £1,461.90 (63% reduction)

☀ Scenario 3: 4-Season Pool (Manufacturer Reference Case)

Based on Aquagem’s published data for year-round operation:

• Operation: 16 hours/day average, 365 days
• Electricity rate: €0.25/kWh (≈£0.21/kWh)

InverMaster 1.1kW Variable Speed:

• ✅ Annual energy consumption: Approximately 2,500 kWh
• ✅ Annual cost: ~£660

Traditional 1.5kW Single-Speed Pump:

• ❌ Annual energy consumption: 8,322 kWh
• ❌ Annual cost: ~£2,190

💰 Annual Saving: ~£1,530 📈 5-Year Saving: ~£7,650 ⚡ CO₂ Reduction: 2,338 kg annually (equivalent to planting 130 trees)

🎯 Real World Examples & Applications

🏊‍♂ Private Residential Pools (40-70m³)

The IM25 is ideally sized for medium domestic pools. Run at 50-70% capacity for daily filtration, automatically adjusting flow to maintain crystal-clear water while keeping energy costs to a minimum. The ultra-quiet operation (from 36 dB) means no disturbance during poolside relaxation.

🏨 Hotel & Holiday Rental Pools

Perfect for hospitality applications where quiet operation and reliable performance are essential. WiFi connectivity allows remote monitoring, while the 4-timer programming ensures optimal filtration schedules without staff intervention. Running costs are dramatically lower than traditional pumps, improving operational margins.

🛁 Spa & Hot Tub Applications

With water temperature tolerance up to 50°C, the IM25 works seamlessly with heated spa installations. The variable speed control provides gentle circulation when heat retention is priority, ramping up for hydrotherapy jets when needed.

🌊 Water Features & Fountain Circulation

The adjustable flow rate (8-28 m³/h) makes the IM25 suitable for decorative water features requiring consistent, reliable circulation. The quiet operation is particularly valuable in garden and landscaping applications.

🔄 Pump Replacement & Upgrades

Upgrading from an older single-speed pump to the InverMaster IM25 typically pays for itself within 18-24 months through energy savings alone. Compatible with standard 63mm pipework and most existing filtration systems, installation is straightforward for qualified technicians.

💡 Cost Savings Examples

📍 Scenario: Upgrading from a 10-Year-Old Single-Speed Pump

Old Pump: 1.5kW single-speed, running 8 hours/day, 180 days/year

• ❌ Annual consumption: 2,160 kWh
• ❌ Annual cost: £569.16

New InverMaster IM25: Running at average 55% capacity

• ✅ Annual consumption: 713 kWh
• ✅ Annual cost: £187.88

💵 Annual Saving: £381.28 ⏱ Payback Period: Approximately 18-24 months (depending on purchase price) 📊 5-Year Net Saving: Over £1,900

📍 Scenario: Holiday Let with Extended Season

Property: 60m³ pool, operated April-October (7 months) Daily filtration: 10 hours

Traditional Pump (1.1kW constant):

• ❌ Hours: 10 × 210 days = 2,100 hours
• ❌ Consumption: 2,310 kWh
• ❌ Annual cost: £608.69

InverMaster IM25 at 65% average:

• ✅ Consumption: ~1,000 kWh
• ✅ Annual cost: £263.50

💷 Annual Saving: £345.19 📈 10-Year Saving: £3,451.90

📍 Scenario: Commercial Leisure Centre

Facility: Two 65m³ pools requiring 24/7 circulation Annual operation: 8,760 hours per pump

Two Traditional 1.5kW Pumps:

• ❌ Total consumption: 26,280 kWh
• ❌ Annual cost: £6,924.78

Two InverMaster IM25 Units at 60% average:

• ✅ Total consumption: ~7,900 kWh
• ✅ Annual cost: £2,081.65

💰 Annual Saving: £4,843.13 ⏱ Payback Period: Under 12 months 📊 10-Year Saving: Over £48,000

📥 Downloads & Resources

📄 InverMaster IM25 Installation & Operation Manual – Complete installation instructions, electrical connections, control panel operation, WiFi setup, troubleshooting guide, and maintenance procedures (PDF) Download: InverMaster-IM1C-16-manual-1.pdf

📄 InverMaster Brand Brochure – Product overview, InverSilence technology explanation, performance curves, specifications for all models (IM20/IM25/IM30), and dimensional drawings (PDF) Download: INVERMASTERbrandbrochure.pdf

🏆 Why Choose the InverMaster IM25?

✅ Proven Energy Savings – Up to 80% reduction in electricity costs versus single-speed pumps, with real-world savings of £200-£1,500+ annually depending on usage

✅ Ultra-Quiet Operation – At just 36 dB(A), up to 40 times quieter than conventional pumps, allowing peaceful enjoyment of your pool area

✅ Intelligent Automation – AI-driven controls automatically optimise performance, reducing the need for manual adjustment and ensuring efficient operation

✅ Premium Build Quality – IE5 efficiency brushless DC motor, SUS316 stainless steel mechanical seal, and IP55 protection rating for long service life

✅ Comprehensive Warranty – Backed by manufacturer warranty with UK-based support from Parts4Tubs

✅ Future-Proof Connectivity – WiFi and Bluetooth control via smartphone app, plus RS485 Modbus for integration with pool automation systems

🛒 Why Buy From Parts4Tubs?

✅ UK Pool Equipment Specialists – Dedicated expertise in swimming pool, hot tub, and spa equipment with knowledgeable technical support

✅ Competitive Pricing – Direct sourcing means excellent value on premium equipment like the InverMaster range

✅ Fast UK Delivery – Quick dispatch to get your pool up and running with minimal delay

✅ Technical Support – Expert advice on product selection, installation guidance, and after-sales assistance

✅ Genuine Products – Authorised supplier of authentic Aquagem InverMaster pumps with full manufacturer warranty

✅ Comprehensive Range – Full selection of pool equipment, spare parts, and accessories from leading brands

✨ Summary

The Aquagem InverMaster IM25 is the intelligent choice for pool owners who demand exceptional performance without excessive running costs or noise. With its revolutionary InverSilence technology delivering up to 80% energy savings and 40 times quieter operation than conventional pumps, the IM25 transforms pool ownership. Advanced features including WiFi/Bluetooth control, AI-driven automation, and comprehensive protection systems ensure reliable, efficient operation for years to come. Whether upgrading an existing installation or specifying a new build, the InverMaster IM25 delivers compelling value through dramatically reduced electricity bills and a quieter, more enjoyable pool environment.

Invest in the InverMaster IM25 today and start saving from day one.