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Swimming pool heat pumps

HP Green line1400 ON/OFF

HP 1100 | 40 m³
HP 1000 | 40 m³
HP 1500 | 60 m³
HP 1400 | 60 m³
HP 1700 | 70 m³
HP 2300 | 80 m³
HP 2400 | 80 m³
HP 2800 | 120 m³
HP 3000 | 120 m³
HP Green line Inverter | 40 m³
HP Green line | 40 m³
Tropical kit | up to 800 m³
Heating Output | HP Green line - Microwell
Heating Output
13.5-17 kW
Cooling Output | HP Green line - Microwell
Cooling Output
8.1 kW
COP | HP Green line - Microwell
Operating Range | HP Green line - Microwell
Operating Range
- 15°C to + 40°C
Pool size
60 m³
Colors list
  • Automatic cooling/heating
  • Economical fixed speed
  • Hot gas defrost is STANDARD
  • New environment friendly refrigerant R32
Accessories icon | Microwell Accessories
Truereal icon | Microwell Highlights
360 icon | Microwell 360 view
Description icon | Microwell Description
Specs icon | Microwell Tech. Data
Download icon | Microwell Downloads


Standard equipment
  • MICROWELL HP heat pump
  • Circulation pump control
  • MicroECONOMY+
  • ultraQUIET+
  • antiVIBRATION+
  • easyINSTTALL+
  • User manual
  • Smart wifi control
  • Winter module
  • Heat exchanger frost protection
  • Condensate tray defrost
  • Protection cover


HP Green line - Microwell

360 view


Operating on the thermodynamic principle, which is considered to be one of the most energy efficient systems for water heating or water cooling, Microwell heat pumps are capable of extracting ambient air from any environment ensuring maximum performance with an efficiency that remains unsurpassed on the market.

Microwell swimming pool heat pumps are designed for heating or cooling the water in pools and hot tubs at minimum operational costs.

HP 1400 Green is a powerful heat pump suited for pools up to 60m3 in volume.

HP 1400 Green can provide up to 14.2 kW of heating at typical seaside conditions of air temperature 26°C, water temperature 26°C and air humidity 80%. At typical inland conditions of air temperature 26°C, water temperature 26°C and air humidity 63% the heat pump provides with 11.8 kW. At dry conditions with humidity 35% the pump reaches above 10.8kW heating output.

Heat and cool with one device. Heat pump HP 1400 Green is designed for heating and cooling. The control is very simple. When you set your desired water temperature, the heat pump will automatically heat or cool to keep your desired temperature. HP 1400 Green provides with up to 8.1 kW cooling output.

Highly efficient ecological refrigerant

Reducing Global Warming & Ozone Layer Depletion by HP production The quantity of R32 refrigerant used is significantly lower as compared to the R410A refrigerant. Consequently, this results in decreasing the potential of global warming and minimal depletion of the ozone layer. That´s why Microwell developed the new generation of swimming pool heat pumps, working on the principles of R32 refrigerant with higher capacity.

High efficiency. Swimming pool heat pump is designed to compensate higher investment costs by very low operational costs compared to electric or gas heater. Microwell heat pumps are designed for a maximum efficiency reaching COP values up to 7. Efficiency of the heat pump is a ratio between power consumption (energy you pay) and actual heating or cooling output (energy you receive). With electric heater, the ratio is 1=1, i.e. what you consume and pay you get in the form of heat. Gas heaters may reach efficiency of 1.3. Heat pump’s COP of 7 means that you pay for 1kWh and you get 7kWh of energy. In cooling mode the heat pump provides with solid ratio of 4. Heat pump’s advantage is that it is independent from sun, day or night and weather. Currently the heat pump is the most efficient way of water conditioning in pools or hot tubs.

How is heat pump so efficient? Microwell HP 1400 Green heat pump is able to extract the heat/cold that is present in ambient environment and leveraged pass it into the pool water. If you take your refrigerator, it creates cold inside the fridge by releasing the heat from the back. Heat pump takes the heat (energy or calories) from ambient air and transforms it into the water. The surrounding air cools down in the process. When working in cooling mode, the excessive heat from water is passed into surrounding air. When heating, higher the ambient air temperature is, more free energy can the heat pump extract and thus reach higher efficiency. At favorable conditions you pay around 15% of heat, i.e. 85% of heat is free. Microwell heat pump is built on currently the most eco-friendly refrigerant R32.

Extraordinary PREMIUM line.PREMIUM line of Microwell swimming pool heat pumps contains the highest amount of titanium inside the heat exchanger and applies unique tangential principle to control the water flow. Microwell PREMIUM swimming pool heat pumps provide warm pool:

  • At lowest cost possible
  • In shortest possible time
  • With lowest noise possible

HP 1400 Green is equipped with Microwell unique microECONOMY+ feature offering the most economy circulation pump control. Microwell swimming pool heat pumps can be connected to existing water system (filtration) or it can have an individual circulation pump. A swimming pool heat pump needs continuous water flow to heat or cool. HP 1400 Green tells the circulation pump when heat pump needs to heat or cool. The circulation is turned on and off according to this request. Microwell applies specially designed software that will sample the water and also put the whole system into sleep for the time when heating or cooling is not required. This saves precious energy and results in lower operational costs of the pool.

Full year heating. HP 1400 Green is also designed for a full year heating, particularly winter time. Typical winter can experience air temperatures -15°C. Heat pump thus needs to be protected against possible frost damage and equipped with systems that will keep the heat pump’s performance at desired level.

Long livelihood. Microwell swimming pool heat pumps are designed for 15+ years livelihood. The product requires minimal maintenance. You only need to ensure cleanness of air exchanger from leaves, dust and other particles.

Titanium. Amount of titanium is very important to a swimming pool heat pump. The amount talks about the actual heat transfer area, i.e. power and efficiency of each heat pump. Microwell is proudly using 40% more titanium in heat pumps’ water exchangers. This maximizes the performance and efficiency COP&EER far ahead of others. HP 1400 Green uses 0.48m2 of titanium whereas others use less than 0.25m2.

Microwell heat pump is only 1045mm high and 440mm deep. This saves space and does not protrude in the garden.

Microwell HP 1400 Green consumes on average 2.53kW while heating to 11.8 kW (air temperature 26°C, water temperature 26°C, relative humidity 63%) at 37dB(A) only confirms how well designed and manufactured the pumps are.

Extra features. Microwell is continuously focusing on customers’ demands and wishes. Each heat pump is equipped with special features unique about Microwell heat pumps.

antiVIBRATION+ offering special set of mounting silent blocks eliminating excessive vibration and noise.

microECONOMY+ offering the most economical circulation pump control.

antiFREEZE+ offering non-stop antifreeze protection of your heat pump.

WINTER module allowing the pump to work down to -15°C of ambient air temperature.

Condensate tray defrost and Heat exchanger frost protection to complete the winter package and operations down to -15°C of ambient air temperature.

Microwell has been in business for 25 years, currently exporting to 30+ countries worldwide.

Typically, the unit is in stock near you. Due to many different ways the unit can be tailored on demand, it may take up to 10 days to deliver the unit to you.

If you need assistance in sizing the right heat pump for you please use our online HOW TO CHOOSE tool

Or click on SELECT THE RIGHT HEAT PUMP on the left side of your screen.

Technical data

Pool capacity (m³ / cover / no cover)
Heating capacity (kW / A25 / W10 / RH35%)
Heating capacity (kW / A26 / W26 / RH63%)
Heating capacity (kW / A26 / W10 / RH80%)
Cooling capacity (kW / A30 / W35)
Power consumption (kW)
COP (A26 / W26 / RH63%)
Operating temperature (C)
Water flow (m³h / kPa)
Power supply (V AC/ph)
Heat exchanger (Titanium type)
Titanium surface (m²)
Acoustic pressure level(dB(A) / 1m / 2m / 4m / 8m)
Water circuit connection (mm / inch / thread)
Dimensions (WxHxD)
HP 1000/1100
9.1 - 10
10.7 - 11.3
13.1 - 13.9
6.5 - 7.2
1.74 - 1.88
5.7 - 6.5
-15 to +40
4-6 / 5-15 (1 - 5)
Titanium Gr 2 ASTM B338
0.43 - 0.56
from 870x655x320
HP 1400/1500
12.1 - 13
14.1 - 14.9
17.2 - 17.4
9.5 - 10.3
2.29 - 2.47
5.7 - 6.15
-15 to +40
4-6 / 5-15 (1 - 5)
Titanium Gr 2 ASTM B338
0.48 - 0.70
from 870x655x320
HP 1700
-15 to +40
6-8 / 5-15
Titanium Gr 2 ASTM B338
HP 2300/2400
-15 to +40
8-10 / 5-15
Titanium Gr 2 ASTM B338
from 942x1250x360
HP 2800/3000
-15 to +40
8-12 / 5-15
Titanium Gr 2 ASTM B338
from 942x1250x360
HP GREEN 1000/1400 on-off
40/30 - 60/40
7.8 - 10.8
8.2 - 11.8
9.8 - 14.2
6.8 - 8.1
1.92 - 2.59
-15 to +40
4 - 8 / 15
Titanium Gr 2 ASTM B338
0.42 - 0.48
from 1045x710x440
HP GREEN 1000/1400 Inverter Pro
40/30 - 60/40
7.7 - 10.5
5.2 - 5.4
10.8 - 15
7.6 - 9.5
1.72 - 2.09
5.2 - 5.4
-15 to +40
3.5 - 4 / 14
Titanium Gr 2 ASTM B338
0.52 - 0.7
from 1050x870x450

Manufacturer reserves the right to change the technical data without notice.