Madimack InverElite V4 19kW Pool Heat Pump
Madimack InverElite V4 19kW Pool Heat Pump is temporarily out of stock and will ship as soon as it's available.
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Don't Guess - Ask Us!
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Delivery and Shipping Info*
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Madimack InverElite V4 19kW Pool Heat Pump
Madimack InverElite V4 19kW Pool Heat Pump is temporarily out of stock and will ship as soon as it's available.
Madimack InverElite V4 19kW Pool Heat Pump
Madimack InverElite V4 19kW — the world's most efficient and quietest pool heat pump, sized for large residential pools. Peak COP of 20.0 delivers near-unmatched energy savings, and triple-layered sound insulation keeps operation whisper-quiet.
- Physically Stocked, unlike most "drop-shipping" websites.
- Shipped from VIC, NSW, WA, QLD
- Documentation: Brochure | User Manual | Sizing Chart
- Shipping: Someone may be required to help lift the heater from the delivery truck if a tailgate lifter isn't available.
Choose Your Size — InverElite V4 Range
The InverElite V4 is available in 9 outputs. This page is for the 19kW model. View other sizes:
Unsure which size is right for your pool? View the Madimack Sizing Chart or contact our team for a recommendation.
InverElite V4 19kW — Key Specifications
- Heating Capacity (Air 27°C / Water 27°C / 80% humidity): 19.0 kW
- Heating Capacity (Air 15°C / Water 26°C / 70% humidity): 13.0 kW
- COP Range (warm conditions): 20.0~7.0
- COP Range (cool conditions): 7.9~5.0
- Cooling Capacity (Air 35°C / Water 28°C): 10.8 kW
- Rated Input Power: 0.31~2.6 kW
- Rated Input Current: 1.35~11.3 A
- Sound Level at 1 m: 37.5~46.0 dB(A)
- Sound Level at 10 m: 17.5~26.0 dB(A) — whisper-quiet
- Recommended Water Flow: 100 L/min
- Power Supply: 230V / 1-Phase
- Electrical Connection: Hard Wired
- Net Dimensions (L × W × H): 1036 × 494 × 655 mm
- Refrigerant: R32
- Water Connection: 40 mm
- Operating Air Temperature: -20°C to 43°C
- Temperature Set Range: 5°C to 40°C
- Compressor: Twin-Rotary Mitsubishi DC
- Casing: Marine-grade aluminium alloy
Why Choose the InverElite V4?
World's First 3D Airflow Ventilation — A 3-directional ventilation system that reduces installation space while improving efficiency and performance.
Twin-Rotary Mitsubishi DC Compressor — Rapid heat-up times paired with a commercial-grade centrifugal fan for exceptional power-to-performance efficiency.
Whisper-Quiet Operation — Triple-layered sound insulation (condensed fibre, foam, and metal jacket) makes the V4 the quietest heat pump available.
Marine-Grade Protection — Corrosion-resistant aluminium alloy jacket built for harsh Australian conditions.
Quick & Easy Installation — Universal external quick-connect plugs simplify install. Only heat pump with external universal controls, allowing multiple devices to connect seamlessly.
User-Friendly Digital Display — Sleek display with advanced features for effortless control and monitoring.
Warranty*
- 7 years on all parts
- 10 years on the compressor
- 25 years on the heat exchanger
*Refer to Madimack's Warranty Schedule for full terms and conditions.
In plumbing, named sizes are not the actual measurements. A pipe called “50mm” or “2"” does not measure 50 mm across. Instead, it follows nominal sizing, an internationally-standardised naming system.
Use the Outside Diameter (OD) to check your pipe against fittings. Below is a quick reference for common spa & pool pipe sizes:
| Imperial Name | Metric Name | Pipe Diameter (OD) |
|---|---|---|
| 1/2" | 15mm | ~21.2–21.5 mm |
| 3/4" | 20mm | ~26.6–26.9 mm |
| 1" | 25 mm | ~33.4–33.7 mm |
| 1.5" | 40 mm | ~48.1–48.4 mm |
| 2" | 50 mm | ~60.2–60.8 mm |
| 2.5" | 65 mm | ~75.2–75.5 mm |
These are nominal sizes and are designed to fit matching fittings — not to measure exactly what their name suggests. These are based on PVC Pressure Pipe AS/NZ 1477 Dimensions1.
- º Internal diameters vary slightly by manufacturer and class.
- 1 Not all pool/spa fittings match these dimensions exactly. Some do not follow Australian or international standards. Chinese spas may use proprietary fittings.
Understanding Plumbing Sizes & Nominal Measurements
Plumbing sizes can be confusing. PVC and many other pipe systems use nominal sizes—the size is a name, not the exact measured dimension. This convention is used across most pool and spa systems so that pipes and fittings remain compatible.
Why pipe sizes don’t match the measurements
The Nominal Pipe Size (NPS) system standardises pipe dimensions so that pipes, fittings, valves, and accessories interoperate. Plumbers work with these nominal names every day, but DIYers can be tripped up if they try to match by a tape-measure alone.
How to Measure Pipe Correctly
-
Pipe size is identified by:
- The pipe’s Outside Diameter (OD).
- The fitting’s Inside Diameter (ID) (socket opening).
- Pipe Class / Schedule (e.g., Class 9, 12, 18 or Sch 40) relates to wall thickness and therefore the Internal Diameter (ID) and pressure rating.
- The outside diameter of a fitting is not useful (wall thickness varies by manufacturer).
Hose & Tube Dimensions
Common flexible hose sizes used in pool/spa systems (approximate IDs).
| Imperial Name | Metric Name | Inside Diameter (ID) |
|---|---|---|
| 3/8" | 9–10 mm | ~9 mm |
| 3/4" | 19 mm | ~19 mm |
BSP – British Standard Pipe Thread Sizes
BSP thread names are also nominal. The thread OD will not equal the nominal name.
| BSP Thread Size Naming | Outside Diameter (mm / inch) | TPI |
|---|---|---|
| 1/16" BSP | 7.7 mm / 0.304" | 28 |
| 1/8" BSP | 9.7 mm / 0.383" | 28 |
| 1/4" BSP | 13.16 mm / 0.518" | 19 |
| 3/8" BSP | 16.66 mm / 0.656" | 19 |
| 1/2" BSP / 15 mm | 20.99 mm / 0.825" | 14 |
| 5/8" BSP | 22.99 mm / 0.902" | 14 |
| 3/4" BSP / 20 mm | 26.44 mm / 1.041" | 14 |
| 7/8" BSP | 30.20 mm / 1.189" | 14 |
| 1" BSP / 25 mm | 33.25 mm / 1.309" | 11 |
| 1-1/4" BSP | 41.91 mm / 1.650" | 11 |
| 1-1/2" BSP / 40 mm | 47.80 mm / 1.882" | 11 |
| 2" BSP / 50 mm | 59.61 mm / 2.347" | 11 |
| 2-1/4" BSP | 65.71 mm / 2.587" | 11 |
| 2-1/2" BSP | 75.18 mm / 2.960" | 11 |
| 3" BSP | 87.88 mm / 3.460" | 11 |
| 4" BSP | 113.03 mm / 4.450" | 11 |
| 5" BSP | 138.43 mm / 5.450" | 11 |
| 6" BSP | 163.83 mm / 6.450" | 11 |
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