💧 InverSmart DM19 Variable Speed Pool Pump – 14.5m³/h @ 10m Head

Save Up to 90% on Energy Bills with Whisper-Quiet, Premium Inverter Technology That Pays for Itself in Months 💰

📋 Product Overview

The InverSmart DM19 is a revolutionary variable speed pool pump that delivers premium performance at an entry-level price point. Powered by InverSilence technology and a Permanent Magnetic Synchronous Motor (PMSM), this pump achieves IE4 energy efficiency – the highest motor efficiency class available – while operating at a whisper-quiet 36 decibels.

Unlike traditional single-speed pumps that run at full power constantly, the DM19 intelligently adjusts motor speed from 30% to 100% capacity, precisely matching your pool’s filtration needs. This means dramatically lower energy consumption during daily operation, with full power available when you need it for backwash cycles.

Designed for pools between 30-60m³, the DM19 delivers up to 23.5m³/h maximum flow and 17m maximum head. Its self-priming design, saltwater compatibility, and intuitive touchscreen controller make it the smart choice for pool owners who demand efficiency, reliability, and long-term savings. With a 5-year manufacturer warranty, this pump is built to deliver exceptional value for years to come.

⭐ Key Features

✅ InverSilence Technology – Proprietary inverter control adjusts motor speed in single-round increments for precise, efficient operation at any capacity from 30% to 100%

✅ IE4 PMSM Motor – Permanent Magnetic Synchronous Motor delivers the highest efficiency class (IE4), reducing energy consumption by up to 90% compared to traditional pumps

✅ Whisper-Quiet 36dB Operation – Quieter than a refrigerator, making it ideal for residential installations near living areas without noise disturbance

✅ Smart Touchscreen Controller – Full digital interface displays real-time power consumption in watts, allowing you to monitor savings as they happen

✅ Programmable 7-Day Timer – Set up to 4 daily timers across a full week, automating your pool filtration schedule for maximum efficiency

✅ One-Touch Backwash Mode – Instantly switch to 100% capacity for thorough filter cleaning, then return to energy-saving operation

✅ Variable Speed Control – Adjust running capacity from 30% to 100% to match filtration needs, pool usage, and seasonal requirements

✅ Self-Priming Design – Eliminates manual priming and simplifies installation, can be mounted up to 2m above water level

✅ Saltwater Ready – Fully compatible with salt chlorination systems up to 3.5% concentration, with corrosion-resistant construction

✅ IP55 Protection Rating – Class F insulation with weatherproof housing ensures reliable operation in outdoor pool environments

🔧 Technical Specifications

Specification	Detail
Model	InverSmart DM19
Motor Power (P₁)	0.80 kW
Voltage / Frequency	220–240 V, 50/60 Hz
Maximum Flow (Qmax)	23.5 m³/h
Flow @ 8m Head	19.0 m³/h
Flow @ 10m Head	14.5 m³/h
Maximum Head (Hmax)	17 m
Noise Level	~36 dB(A)
Motor Efficiency Class	IE4 – PMSM
Pump Type	Variable Speed, Self-Priming
Speed Control Range	30% – 100%
Recommended Pool Volume	30 – 60 m³
Salt Water Compatible	Yes (up to 3.5% concentration)
Control System	Digital Touchscreen
Real-Time Display	Power consumption (watts)
Timer Programming	Up to 4 timers/day, 7-day week
Backwash Mode	One-touch activation
External Control Options	Digital input, RS485, Relay output
Protection Class	IP55
Insulation Class	Class F
Water Temperature Range	5°C – 50°C
Ambient Temperature Range	-10°C – 42°C
Maximum Humidity	<90% RH (at 20°C ±2°C)
Maximum Installation Height	2m above water level
Soft Start	Yes – 0 to rated amps steadily
Packing Dimensions	585 × 255 × 325 mm
Warranty	5 Years

💰 Usage Costs & Running Expenses

Understanding the true cost of running your pool pump is essential for making an informed decision. The InverSmart DM19’s variable speed technology delivers exceptional savings compared to traditional single-speed pumps.

📊 Annual Running Cost Calculation

UK Electricity Rate Used: £0.2635 per kWh (Ofgem Price Cap, Q4 2025)

Typical Residential Pool Usage:

• Daily operation: 8 hours
• Swimming season: 180 days (6 months, April–September)
• Total annual hours: 1,440 hours

🏊 InverSmart DM19 at Reduced Speed (50% capacity for daily filtration)

At 50% speed, the PMSM motor draws approximately 0.11 kW (based on manufacturer data showing 10x energy savings potential):

• Power consumption: 0.11 kW × 1,440 hours = 158.4 kWh/year
• ✅ Annual cost: 158.4 kWh × £0.2635 = £41.74

❌ Traditional Single-Speed Pump (1.1 kW)

A comparable single-speed pump runs at full power constantly:

• Power consumption: 1.1 kW × 1,440 hours = 1,584 kWh/year
• ❌ Annual cost: 1,584 kWh × £0.2635 = £417.39

💷 Annual Savings Summary

Pump Type	Annual kWh	Annual Cost	Savings
❌ Single-Speed (1.1 kW)	1,584 kWh	£417.39	—
✅ InverSmart DM19 (variable)	158.4 kWh	£41.74	£375.65/year

💰 You save approximately £375 per year – the pump pays for itself in under 2 years!

♨️ Extended Season / Year-Round Pool Usage

For heated pools or those with longer seasons running 12 hours daily for 300 days:

Total hours: 3,600 hours/year

Pump Type	Annual kWh	Annual Cost	Annual Savings
❌ Single-Speed (1.1 kW)	3,960 kWh	£1,043.46	—
✅ InverSmart DM19 (variable)	396 kWh	£104.35	£939.11/year

💸 Extended season savings: Nearly £940 per year!

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🎯 Real World Examples & Applications

🏊‍♂️ Residential Swimming Pools

The DM19 is ideal for medium to large domestic pools between 30-60m³. Its variable speed operation means you can run the pump at lower speeds during the day for continuous, quiet filtration, then increase to full power for evening backwash cycles. The 36dB noise level ensures peaceful garden enjoyment even when the pump is running.

🛁 Spa & Hot Tub Integration

For properties with combined pool and spa systems, the DM19 provides reliable water circulation for both. The wide temperature tolerance (5°C–50°C) makes it suitable for heated spa applications, while the programmable timers allow separate schedules for pool and spa circulation.

🌊 Water Features & Fountains

The adjustable flow rate (30%–100%) makes the DM19 versatile enough to power decorative water features. Reduce speed for gentle fountain effects or increase for dramatic displays. The quiet operation ensures water features enhance rather than disturb your outdoor ambiance.

🏢 Small Commercial Pools

Holiday lets, boutique hotels, and small wellness centres benefit from the DM19’s commercial-grade reliability with residential running costs. The RS485 and relay output options allow integration with building management systems for automated control.

🔄 Pump Replacement & Upgrades

Replacing an aging single-speed pump? The DM19’s self-priming design and standard connections make retrofit installation straightforward. Most existing plumbing configurations accommodate the DM19 without modification, and the energy savings begin immediately upon installation.

☀️ Solar-Heated Pool Systems

The DM19 pairs excellently with solar heating systems. Run at reduced speed during daylight hours to maximise solar gain, then program higher speed cycles for evening filtration. The real-time power display helps optimise the balance between circulation and energy efficiency.

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💡 Cost Savings Examples

📍 Scenario 1: Upgrading from a 10-Year-Old Single-Speed Pump

Your situation: You have a 45m³ pool with an ageing 1.1 kW single-speed pump running 8 hours daily during a 6-month season.

Current Setup	InverSmart DM19
❌ 1,584 kWh/year	✅ 158 kWh/year
❌ £417/year running cost	✅ £42/year running cost

💰 Annual saving: £375

⏱ Payback period: Under 2 years based on typical pump pricing

📈 5-year total savings: £1,875

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📍 Scenario 2: Year-Round Heated Indoor Pool

Your situation: You operate an indoor pool at 12 hours daily, 365 days per year, currently using a 1.5 kW single-speed pump.

Current Setup	InverSmart DM19
❌ 6,570 kWh/year	✅ 657 kWh/year
❌ £1,731/year	✅ £173/year

💰 Annual saving: £1,558

⏱ Payback period: Under 6 months

📈 5-year total savings: £7,790 (plus avoiding one pump replacement)

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📍 Scenario 3: Holiday Let with Pool

Your situation: You run a holiday cottage with a 50m³ pool. During peak season (May–September), the pump runs 10 hours daily. Off-season, minimal circulation at 4 hours daily.

Peak season (150 days × 10 hours = 1,500 hours):

• ❌ Single-speed: 1,650 kWh = £434.78
• ✅ InverSmart at 60%: 198 kWh = £52.17

Off-season (215 days × 4 hours = 860 hours at 30% speed):

• ❌ Single-speed: 946 kWh = £249.27
• ✅ InverSmart at 30%: 47.3 kWh = £12.46

Annual Totals	Single-Speed	InverSmart DM19
❌ Total kWh	2,596 kWh	✅ 245 kWh
❌ Total cost	£684.05	✅ £64.63

💰 Annual saving: £619.42

📊 ROI: 188% in the first year alone

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📥 Downloads & Resources

📄 InverSmart Product Factsheet – Complete specifications, application conditions, and controller features (PDF)

📄 InverSmart Technical Brochure – Detailed performance curves, dimensional drawings, and full range comparison (PDF)

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🏆 Why Choose the InverSmart DM19?

✅ Pays for Itself Quickly – With potential savings of £375+ annually, the DM19 typically achieves full payback in under 2 years, then continues saving you money for its entire lifespan

✅ Premium Performance at Entry-Level Price – Delivers features found in competitors’ top-tier models at a fraction of the cost, including IE4 motor efficiency and smart touchscreen control

✅ Neighbour-Friendly Operation – At just 36dB, the DM19 is quieter than a typical conversation, eliminating noise complaints and allowing evening operation without disturbance

✅ Future-Proof Technology – RS485 connectivity and relay outputs enable smart home integration, while variable speed operation meets emerging energy efficiency regulations

✅ 5-Year Manufacturer Warranty – Comprehensive coverage gives you complete peace of mind, backed by durable Class F insulation and IP55 weatherproofing

✅ Immediate Energy Savings – Start reducing your electricity bills from day one with intelligent variable speed operation that matches pump output to actual filtration requirements

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🛒 Why Buy From Parts4Tubs?

✅ Expert Pool Equipment Specialists – Dedicated knowledge of pumps, filters, and pool systems ensures you get the right product for your specific application

✅ Competitive Pricing – We work directly with manufacturers to bring you premium equipment at the best possible prices

✅ Fast UK Delivery – In-stock items dispatched promptly for quick delivery to your door

✅ Technical Support – Our team is available to help with sizing, installation queries, and ongoing support throughout your ownership

✅ Trusted Supplier – Established reputation for quality products and excellent customer service within the UK pool and spa industry

✨ Summary

The InverSmart DM19 Variable Speed Pool Pump represents the perfect balance of performance, efficiency, and value. Its InverSilence technology and IE4-rated PMSM motor deliver up to 90% energy savings compared to traditional single-speed pumps, while whisper-quiet 36dB operation ensures peaceful enjoyment of your pool area. With intuitive touchscreen controls, programmable 7-day timers, and one-touch backwash functionality, managing your pool has never been easier or more economical. Backed by a comprehensive 5-year warranty, the DM19 is a smart investment that pays dividends from the very first electricity bill.