💧 InverSmart DM15 Variable Speed Pool Pump – 11m³/h @ 10m Head

Smart Inverter Technology That Pays For Itself – Up to 70% Energy Savings with Whisper-Quiet 36dB Operation

📋 Product Overview

The InverSmart DM15 Pool Pump represents the next generation of pool circulation technology, combining cutting-edge inverter technology with a Permanent Magnetic Synchronous Motor (PMSM) to deliver exceptional performance at a fraction of the running cost of traditional pumps.

Engineered for residential swimming pools of 20-40m³, this IE4-rated variable speed pump doesn’t just circulate water – it transforms how you manage your pool. The intelligent touchscreen controller allows you to fine-tune performance from 30% to 100% capacity, meaning you use only the power you need for daily filtration while retaining full capacity for backwash operations.

With an impressive maximum flow rate of 21m³/h and 15m head, the DM15 handles demanding installations with ease. Yet it operates at just 36dB – quieter than a refrigerator – making it perfect for residential settings where noise matters. Fully compatible with saltwater systems up to 3.5% concentration and backed by a comprehensive 5-year warranty, the InverSmart DM15 is the smart choice for pool owners who demand efficiency, reliability, and peace of mind.

⭐ Key Features

✅ Variable Speed Control (30-100%) – Precisely adjust pump output to match your exact needs, reducing energy waste during low-demand periods while maintaining full power when required

✅ IE4 PMSM Motor Technology – Permanent Magnetic Synchronous Motor delivers up to 70% energy savings compared to traditional single-speed pumps through superior magnetic efficiency

✅ Ultra-Quiet 36dB Operation – Runs quieter than a soft conversation or refrigerator, ideal for residential pools near living spaces or bedrooms

✅ Smart Touchscreen Controller – Intuitive full-touch interface displays real-time power consumption in watts, allowing you to monitor exactly how much energy you’re using

✅ Programmable 7-Day Timer – Set up to 4 independent timers per day across a full weekly schedule for completely hands-free operation

✅ One-Touch Backwash Mode – Instantly switches to full 100% capacity for filter cleaning, then returns to your programmed settings

✅ Self-Priming Design – Automatically draws water up to 2m above pool level, simplifying installation in equipment rooms

✅ Saltwater Compatible – Fully certified for salt-chlorinated pools with concentrations up to 3.5%, with corrosion-resistant construction

✅ Soft Start Technology – Gradually ramps from 0 amps to rated power, reducing electrical stress and extending motor life

✅ 5-Year Manufacturer Warranty – Comprehensive coverage provides complete peace of mind for your investment

🔧 Technical Specifications

Specification	Detail
Model	DM15
Motor Power (P₁)	0.66 kW
Voltage / Frequency	220-240V, 50/60 Hz
Maximum Flow Rate (Qmax)	21 m³/h
Maximum Head (Hmax)	15 m
Flow @ 10m Head	11 m³/h
Flow @ 8m Head	15 m³/h
Recommended Pool Size	20-40 m³
Speed Control Range	30% – 100%
Noise Level	~36 dB(A)
Motor Efficiency Class	IE4 (PMSM)
Protection Class	IP55
Insulation Class	Class F
Connection Size	2″ Unions (included)
Maximum Water Temperature	5°C – 50°C
Salt Concentration Tolerance	Up to 3.5%
Maximum Humidity	<90% RH
Maximum Installation Height	2m above water level
Ambient Temperature Range	-10°C to 42°C
Timer Capability	4 timers/day, 7-day weekly schedule
Packing Dimensions	585 x 255 x 325 mm
Warranty	5 Years

💰 Usage Costs & Running Expenses

Understanding your actual running costs helps you appreciate the true value of inverter technology. Here’s a detailed breakdown based on current UK energy prices and realistic usage scenarios.

📊 Annual Running Cost Calculation

Assumptions:

• UK Electricity Rate: £0.2635 per kWh (Ofgem Price Cap Q4 2025)
• Swimming Season: 180 days (April – September)
• Daily Operation: 8 hours average

InverSmart DM15 at Variable Speed (Average 50% Capacity):

At 50% speed, the DM15 consumes approximately 0.20 kW (significantly reduced from the 0.66 kW maximum)

• Daily consumption: 0.20 kW × 8 hours = 1.6 kWh
• Seasonal consumption: 1.6 kWh × 180 days = 288 kWh
• ✅ Annual running cost: 288 kWh × £0.2635 = £75.89

🏊 Usage Scenario Comparison

Scenario 1: Daily Filtration (Low Speed Operation)

🏊 Running at 40% capacity for standard filtration:

• Power consumption: ~0.15 kW
• Daily cost: 0.15 kW × 8 hours × £0.2635 = £0.32
• ✅ Monthly cost: £9.50

Scenario 2: Peak Season Operation (Higher Demand)

☀️ Running at 70% capacity during hot weather:

• Power consumption: ~0.40 kW
• Daily cost: 0.40 kW × 10 hours × £0.2635 = £1.05
• ✅ Monthly cost: £31.50

Scenario 3: Traditional Single-Speed Pump Comparison

❌ Typical 1.1 kW single-speed pump running 8 hours:

• Daily consumption: 1.1 kW × 8 hours = 8.8 kWh
• Seasonal consumption: 8.8 kWh × 180 days = 1,584 kWh
• ❌ Annual running cost: 1,584 kWh × £0.2635 = £417.39

💸 Energy Savings Summary

Pump Type	Power Draw	Annual kWh	Annual Cost
❌ Traditional 1.1kW Single-Speed	1.10 kW	1,584 kWh	£417.39
❌ Older Variable Speed (0.75kW average)	0.75 kW	1,080 kWh	£284.58
✅ InverSmart DM15 (0.20kW average)	0.20 kW	288 kWh	£75.89

💰 Your Annual Saving vs Single-Speed Pump: £341.50

💷 Your Annual Saving vs Older Variable Speed: £208.69

⚡ Energy Reduction: Up to 82% less electricity consumption

🎯 Real World Applications

🏊‍♂️ Residential Swimming Pools (20-40m³)

The InverSmart DM15 is perfectly sized for typical UK residential pools. A 30m³ garden pool requires approximately 2-3 water turnovers daily for proper filtration. At the 11m³/h flow rate achieved at 10m head, the DM15 completes a full turnover in under 3 hours, allowing you to run at reduced speed while maintaining crystal-clear water quality.

Typical Installation: Equipment room up to 2m above water level, 8-hour daily runtime at 40-50% capacity for standard filtration, boosting to 100% for weekly backwash operations.

🛁 Spa & Hot Tub Circulation Systems

The variable speed capability makes the DM15 excellent for spa applications where gentle circulation prevents surface disturbance while maintaining water quality. The self-priming design handles above-ground installations common in spa configurations.

Typical Installation: Run at 30-40% for continuous circulation, increasing to 70-80% for hydrotherapy jet activation when compatible with your spa plumbing configuration.

🌊 Water Features & Fountain Systems

Architectural water features benefit from the ultra-quiet 36dB operation, ensuring pump noise doesn’t detract from the aesthetic experience. Variable speed control allows precise flow adjustment to achieve the perfect fountain height or waterfall effect.

Typical Installation: Continuous operation at low speed (30-50%) with programmable timers to reduce flow during evening hours for subtle lighting effects.

🔄 Pump Upgrades & Replacements

If you’re replacing an aging single-speed pump, the InverSmart DM15 offers a straightforward upgrade path. The standard 2″ union connections fit most existing installations, and the dramatic energy savings begin immediately upon installation.

Upgrade Consideration: The included 2″ unions match industry-standard plumbing. Self-priming capability means you maintain flexible installation options even if your equipment room sits above pool level.

♨️ Heated Pool & Heat Pump Integration

The DM15 works seamlessly with pool heating systems and heat pumps. When heating, you can increase circulation to distribute warmth efficiently, then reduce to economy mode once target temperature is reached. The smart timer coordination means heating cycles can align with off-peak electricity tariffs.

Typical Installation: Program higher circulation during heat pump operation, dropping to minimum flow overnight to maintain temperature with minimal energy expenditure.

💡 Cost Savings Examples

📍 Scenario 1: Upgrading from Traditional Single-Speed Pump

Current Situation: A pool owner operates a 10-year-old 1.1 kW single-speed pump for 8 hours daily during the 6-month swimming season.

• ❌ Old pump annual electricity: 1,584 kWh
• ❌ Old pump annual cost: £417.39

After InverSmart DM15 Installation:

• ✅ New pump annual electricity: 288 kWh (at 50% average speed)
• ✅ New pump annual cost: £75.89

💰 Annual Saving: £341.50

⏱️ Payback Period: Approximately 2-2.5 years (based on typical pump replacement costs)

📈 5-Year Total Savings: £1,707.50

📍 Scenario 2: All-Year Pool Operation (Heated Pools)

For pools operated year-round with heating:

Running 6 hours daily across 365 days at 50% average capacity:

• Annual consumption: 0.20 kW × 6 hours × 365 days = 438 kWh
• ✅ Annual cost: £115.41

Compared to single-speed pump:

• ❌ Single-speed annual: 1.1 kW × 6 hours × 365 days = 2,409 kWh = £634.77

💰 Annual Saving: £519.36

📈 5-Year Total Savings: £2,596.80

📍 Scenario 3: Extended Summer Season Operation

For pools running April through October (214 days):

Running 10 hours daily at 60% average capacity:

• Consumption: 0.30 kW × 10 hours × 214 days = 642 kWh
• ✅ Annual cost: £169.17

Compared to traditional pump:

• ❌ Traditional: 1.1 kW × 10 hours × 214 days = 2,354 kWh = £620.28

💰 Annual Saving: £451.11

📊 Quick Comparison Table

Scenario	Traditional Pump Cost	InverSmart DM15 Cost	Annual Saving	5-Year Saving
Standard Season (180 days, 8hrs)	£417.39	£75.89	💰 £341.50	📈 £1,707.50
Extended Season (214 days, 10hrs)	£620.28	£169.17	💰 £451.11	📈 £2,255.55
Year-Round (365 days, 6hrs)	£634.77	£115.41	💰 £519.36	📈 £2,596.80

All calculations based on UK Ofgem Price Cap Q4 2025: £0.2635 per kWh

📥 Downloads & Resources

📄 InverSmart Product Factsheet – Complete specifications, feature overview, and model comparison chart Download Factsheet (PDF)

📄 InverSmart Technical Brochure – Detailed technical documentation including performance curves, dimensions, and installation requirements Download Brochure (PDF)

🛒 Why Buy From Parts4Tubs?

✅ Specialist Pool & Spa Expertise – We understand pool equipment inside and out, providing genuine technical advice rather than generic sales speak

✅ Competitive Pricing – Direct relationships with manufacturers mean we pass savings directly to you without compromising on quality

✅ Fast UK Delivery – Stock held in the UK for rapid dispatch to get your pool running quickly

✅ Technical Support – Our team can answer your installation and sizing questions before and after purchase

✅ Genuine Products – Authentic manufacturer stock with full warranty support and documentation

✅ Easy Returns – Hassle-free returns policy if the product isn’t right for your application

🏆 Why Choose the InverSmart DM15?

✅ Proven Energy Savings – IE4-rated PMSM motor delivers genuine 70%+ energy reduction versus traditional pumps, with real-world savings of £300-500+ annually

✅ Whisper-Quiet Operation – At just 36dB, it’s quieter than a refrigerator – no more pump house noise disturbing your garden relaxation

✅ Smart Investment – The pump typically pays for itself within 2-3 years through electricity savings alone, then continues saving for years to come

✅ Complete Control – Variable speed from 30-100% plus 7-day programmable timers mean total flexibility to match your pool’s exact requirements

✅ Built to Last – Quality construction with 5-year warranty coverage provides confidence in your investment

✅ Universal Compatibility – Works with sand filters, cartridge filters, heat pumps, and saltwater chlorination systems up to 3.5% salt concentration

✨ Summary

The InverSmart DM15 Pool Pump delivers the perfect combination of cutting-edge efficiency, intelligent control, and reliable performance for residential pool owners. With IE4-rated PMSM motor technology achieving up to 70% energy savings, whisper-quiet 36dB operation, and intuitive smart controls, it transforms pool maintenance from an ongoing expense into a manageable investment. Backed by a comprehensive 5-year warranty and proven to pay for itself through electricity savings alone, the DM15 represents the smart choice for pool owners who demand quality, efficiency, and peace of mind.