GRE Mini HPM30 heat pump for above-ground pools up to 30 m³
GRE Mini HPM30 heat pump for above-ground pools up to 30 m³ subject to supplier availability.
Estimated delivery time: 7 to 10 business days (bulky item)
Description
Description
The GRE Mini HPM30 heat pump is designed to heat above-ground pools of up to 30 m³. Its compact design and direct installation in the filtration circuit make it easy to add heating without needing to install a by-pass kit.
Under A28/W28 and 80% humidity conditions, it delivers 4.2 kW of heating capacity, with power consumption of 1.00 kW and a COP of 4.2. Under more demanding A15/W26 and 70% humidity conditions, it delivers 3.2 kW, consumes 0.91 kW, and achieves a COP of 3.51.
The 30 m³ figure is the maximum volume indicated by GRE. The time needed to heat the water will also depend on the outdoor temperature, the water's initial temperature, heat loss, and whether a pool cover is used.
What does the GRE Mini HPM30 offer?
Easy installation
It connects to the pool filtration circuit, and GRE specifies that no by-pass kit is required.
Performance under different conditions
At A28/W28 and 80% RH, it delivers 4.2 kW with 1.00 kW power consumption and a COP of 4.2. At A15/W26 and 70% RH, it delivers 3.2 kW with 0.91 kW power consumption and a COP of 3.51.
32/38 mm connection
Ready for connection using Ø32 or Ø38 mm hoses, commonly used with above-ground pools.
Titanium heat exchanger
It features a titanium-in-PVC condenser for heat exchange with the pool water.
Installation and technical features
How is it installed?
The HPM30 must be installed outdoors in a well-ventilated area. It is integrated into the filtration return circuit before the water returns to the pool.
- No by-pass kit required.
- Ø32/38 mm water connections.
- Recommended minimum flow rate: 2 m³/h.
- Power supply: single-phase 220–240 V ~ 50 Hz.
- Operating range: 12 to 42 ºC.
HPM30 features
| Reference | HPM30 | Maximum volume | 30 m³ |
| Heating capacity A28/W28 · 80% RH | 4.2 kW | Power consumption A28/W28 | 1.00 kW |
| COP A28/W28 | 4,2 | Heating capacity A15/W26 · 70% RH | 3.2 kW |
| Power consumption A15/W26 | 0.91 kW | COP A15/W26 | 3,51 |
| Power supply | 220–240 V ~ 50 Hz / 1PH | Operating temperature | 12–42 ºC |
| Minimum flow rate | 2 m³/h | Connections | Ø32/38 mm |
| Refrigerant | R32 · 290 g | Noise level | 46 dB(A) |
| Weight | 26 kg | Dimensions | 43.5 × 43.6 × 51 cm |
GRE Mini HPM heat pump comparison
The GRE Mini HPM range lets you choose a model based on pool volume. The HPM30 offers greater heating capacity than the HPM20 and is specified by GRE for pools of up to 30 m³.
| Feature | HPM20 | HPM30 CURRENT MODEL | HPM40 |
|---|---|---|---|
| Maximum volume | 20 m³ | 30 m³ | 40 m³ |
| Heating capacity A28/W28 · 80% RH | 2.5 kW | 4.2 kW | 5.5 kW |
| Power consumption A28/W28 | 0.59 kW | 1.00 kW | 1.31 kW |
| COP A28/W28 | 4,2 | 4,2 | 4,2 |
| Heating capacity A15/W26 · 70% RH | 1.9 kW | 3.2 kW | 4.2 kW |
| Power consumption A15/W26 | 0.56 kW | 0.91 kW | 1.20 kW |
| COP A15/W26 | 3,4 | 3,51 | 3,5 |
| Operating range | 12–42 ºC | 12–42 ºC | 12–42 ºC |
| Recommended minimum flow rate | 2 m³/h | 2 m³/h | 2 m³/h |
| Connections | Ø32/38 mm | Ø32/38 mm | Ø32/38 mm |
| R32 refrigerant | 160 g | 290 g | 400 g |
| Dimensions | 31.3 × 36.4 × 42.8 cm | 43.5 × 43.6 × 51 cm | 51.5 × 47.8 × 54 cm |
| Weight | 18 kg | 26 kg | 30 kg |
Frequently asked questions
Does the GRE HPM30 need a bypass installed?
No. GRE specifies that the HPM30 can be installed in the filtration circuit without a bypass kit.
Is it suitable for any 30 m³ pool?
30 m³ is the maximum pool volume specified by GRE. The actual ability to reach and maintain the desired temperature will depend on environmental conditions, heat loss, and whether a cover is used.
Why are two different power ratings listed for the HPM30?
Because GRE specifies performance under different test conditions. The HPM30 delivers 4.2 kW at A28/W28 and 80% RH, and 3.2 kW at A15/W26 and 70% RH. Available power varies with environmental conditions.
What hose diameter does it use?
The HPM30 has connections for Ø32 and Ø38 mm hoses, commonly used in filtration systems for above-ground pools.
