1100 Compact
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Swimming pool heat pumps

HP BLACK Inverter1100 Compact

HP BLACK Inverter |
HP GREEN Inverter Pro |
80-310kW T3 Tropical 50-60Hz |
50-450kW T3 Tropical 60Hz |
Tropical kit | up to 800 m³
Pool size

3-season Inverter

  • Heat pump of the highest quality equipped with the most up-to-date cutting edge technology
  • Primarily designed for small private swimming pools
  • Automatic cooling/heating
  • Full DC Inverter, with Twin-Rotary Inverter Compressor and DC fan motor
  • Regulation constantly reads out multiple operational parameters to optimize current operations
  • 4 working modes: BOOST, ECO-Silent, SMART, AUTO
  • Built in WiFi module for mobile phone control is optional
  • New environment-friendly refrigerant R32
  • COMPACT heat pump is one device, that provides desired water temperature in the pool.
  • Super quiet in ECO mode, only 13 dB (10m)
  • With titanium heat exchanger for chlorine, salt and sulphur water
  • Monoblock/split, Appropriate for rental appartments, Appropriate for fish pond/Oyster

EAN CODE: 0745314271233

Where to buy
Size guide
Pool size Summer season with cover/without cover
Heating capacity summer Air 27°C, Water 26°C
Heating capacity Spring/Autum Air 15°C Water 26°C
Cooling capacity Summer Air 35°C Water 32°C
Water temperature settings min-max
HP 900 BLACK Inverter Ideal for 25m³ Max. pool size 45m³ 1.8-9.0kW | 10.6-5.8 COP 1.3-6.6kW | 6.2-4.2 COP 4.9kW From +8°C to +40°C
HP 1100 BLACK Inverter Ideal for 30m³ Max. pool size 60m³ 2.3-11.5kW | 10.9-5.9 COP 1.8-8.6kW | 6.4-4.5 COP 6.5kW From +8°C to +40°C
HP 1500 BLACK Inverter Ideal for 40m³ Max. pool size 70m³ 2.9-15.4kW | 10.7-5.7 COP 2.1-11.5kW | 6.3-4.4 COP 6.7kW From +8°C to +40°C

Not sure which Heat Pump

should you choose?
How choose a heat pump?

Key data

Pool size | HP BLACK Inverter - Microwell
Pool size
30-60 m3
Heating Output | HP BLACK Inverter - Microwell
Heating Output
2.3-11.5 kW
Cooling Output | HP BLACK Inverter - Microwell
Cooling Output
3.5 kW
COP | HP BLACK Inverter - Microwell
Operating air temperature range | HP BLACK Inverter - Microwell
Operating air temperature range
-7°C to +43°C
Water temperature range | HP BLACK Inverter - Microwell
Water temperature range
+8°C to +35°C
DC compressor | HP BLACK Inverter - Microwell
DC compressor
Full Stepless DC inverter compressor
PV ready contact | HP BLACK Inverter - Microwell
PV ready contact
Titanium exchanger | HP BLACK Inverter - Microwell
Titanium exchanger
yes - Grade 1 ASTM B264M

Customize your

Heat pump
HP 1100 BLACK Inverter Compact

Why Inverter from Microwell?

At Microwell, we understand that a swimming pool is more than just a place to cool off during the scorching summer months; it's a sanctuary for relaxation and recreation. That's why we've developed the HP Black 900 Inverter Compact swimming pool heat pump, a state-of-the-art solution designed to elevate your pool experience to new heights. Dive into a world of comfort and energy efficiency with these standout features:

  1. We offer probably the most up-to-date cutting edge technology. This is called Full stepless inverter DC.
  2. We equip the water heat exchanger with the best titanium class Grade 1 ASTM 265 and the highest volume of titanium, heat exchange surface (up to 0.4m2). It is the softests and most ductile type of titanium material. It possesses the greatest formability and excellent corrosion resistance. Grade 1 titanium will ensure long happy life of your heat pump and will also prevent possible transport damage due to its high impact toughness.
  3. We use currently the best hydrophobic and protection coating with goldish look called GOLDFIN. Heat pump during its operations condensates considerable amount of water on its cooler fins, the more phobic material the better for the heat pump. Why protection? Because salt present in sea wind or acid rains damage other types of heat pumps without GoldFin. But GoldFin is able to resist these elements.
  4. We not only say that our heat pumps are to minus 7 degrees but we also equip the pumps with needed hardware to do so.
  5. ECO-Silent Mode is limiting the capacity of the heat pump to 65% when activated. This will ensure your desired water temperature at such a low noise level that you can essentially sleep in the room next to the heat pump.
  6. Proved performance and durability by customers across 20 countries and counting.

Inverter Technology for Unmatched Efficiency

Our HP Black 1100 Inverter Compact is engineered with cutting-edge inverter technology, setting it apart from traditional pool heaters. This intelligent system constantly adapts its heating output to match your pool's specific needs. As a result, you'll enjoy optimal water temperature without unnecessary energy consumption. Experience the pinnacle of energy efficiency, which translates to significant cost savings over time.

Space-Saving Design for Versatile Installation

Limited space? No problem. The HP Black 1100 Inverter Compact boasts a compact and space-saving design that makes installation a breeze, even in confined areas. Whether you have a cozy backyard or a commercial pool facility, our heat pump fits seamlessly into your setup. Say goodbye to space-related constraints and hello to year-round pool enjoyment.

Discover Black

Inverter Split
HP 1100 BLACK Inverter Split

Whisper-Quiet Operation for Serene Relaxation

Poolside tranquility is a must for any oasis. Our heat pump's advanced engineering ensures whisper-quiet operation. You can revel in the soothing sounds of water and nature without the disruptive noise commonly associated with conventional heating systems. It's the perfect complement to your serene poolside retreat.

User-Friendly Controls for Effortless Management

Take control of your pool's temperature with unparalleled ease. The intuitive controls of the HP Black 1100 Inverter Compact simplify temperature adjustments. The digital display provides real-time feedback, keeping you informed about your pool's status at all times. Managing your pool's comfort has never been this effortless.

GoldFin: Your Timeless Guardian

You ever wondered why heat pumps look blue or goldish (yellow) from the back? This the protection layers of the aluminum fins of the air exchanger. In Microwell we exclusively apply epoxy based GoldFin protection for all our products because it is just the best. GoldFin creates hydrophobic layer which repels water. In this case the heat pump in colder weather will freeze lot later than standard Bluefin and will defreeze itself faster than Bluefin. This will provide simply more heating. GoldFin is also superior in livelihood of the unit in salty air (coastal application) or sand. It will simply last longer.

24/7 operations

Utilize Microwell’s Internet of Things (IoT) console for BLACK INVERTER heat pump system, designed to provide continuous monitoring, alerts, and seamless operation. Our IOT console provides you as a landlord a continuous heads up on heat pump momentous operations as well as 90 days historical data. You can adjust heat pump operations based on your renting capacity, change target water temperatures and monitor heat pump’s performance. Should a maintenance or service be needed, your pool builder can be advised online and solve the matter.

Titanium Grade1 – no compromise

In Microwell we understand that livelihood of a heat pump is key factor when deciding for its purchase. Titanium Grade 1 ASTM B265M consists of at least 99.2% titanium, with small amounts of oxygen, iron and other compounds (carbon, nitrogen and hydrogen) up to 0.8%. The low impurity levels contribute to its exceptional corrosion resistance. This material also leave no trace, no odor and is neutral to its environment. All Microwell heat pumps are equipped exclusively with this type of titanium in their water exchangers.

Massive heat exchange area – up to 1.2m2

We apply extra surface of up to 1.2m2 of corrugated (twisted) titanium spiral. You can’t go around the physics, you can embrace it. The extensive heat exchange surface provides unprecedented performance and livelihood for each single Microwell heat pump.

Salt + Chlorine + UV + Electrolysis

Each Microwell heat pump is designed to work with various kinds of water, including those treated with chlorine, salt, electrolysis, sulfur or UV. This is mainly thanks to exclusive Titanium Grade1 ASTM B265M titanium tube material used inside water heat exchanger. Standard stainless steel or copper exchangers used in domestic heat pumps would typically last 1 month in pool application with water treated by chlorine. With Microwell heat pump you can be sure that materials used are designed for long harmless operations.

4 modes for maximum comfort

Black inverter heat pump is pre-programmed to operate in 4 modes – AUTO, BOOST, SMART and ECO. Each of them is set to provide different final heating or cooling output while keeping an eye of overall efficiency. Should you like to minimize heating time you may choose BOOST. Should you like to minimize energy bill, you may choose ECO. Or simply you can choose from our 2 fully automated modes AUTO and SMART targeting maximal comfort.

RS-485 Modbus

RS-485, in the context of the Modbus communication protocol, is a widely used interface for industrial control systems and automation applications. RS-485 is a standard for serial communication that allows multiple devices to communicate with each other over long distances. Each Microwell pool heat pump is equipped with RS-485 port based on ModBus protocol. You can program the heat pump to be voice-controlled and also integrated into your smart house control system. The distance to your Microwell heat pump has never been so close.

Technical data and more

If you want to know more just click

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

HP 1100 BLACK Inverter is a powerful heat pump suited for pools up to 60m3 in volume.

HP 1100 BLACK provides 8.6 kW of heating capacity at conditions of air temperature 26°C, water temperature 15°C and air humidity 70%. This heat pump can provide up to 11.5 kW of heating at typical conditions of air temperature 27°C, water temperature 26°C and air humidity 80%.

COMPACT version

COMPACT heat pump is one device, that provides desired water temperature in the pool. It requires only water connection, power supply and convenient place to be installed. Simple and affordable system.

HP Inverter technology

Inverter technology enables powerful yet quiet performance of Microwell heat pumps, while minimising the energy consumption. New Microwell models come exclusively with R32 gas.

Heat and cool with one device. Heat pump HP 1100 BLACK 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 1100 BLACK Inverter provides with up to 6.5 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 1100 BLACK 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 INVERTER line. Microwell BLACK Inverter swimming pool heat pumps provide warm pool:

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

HP 1100 BLACK 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. Pool heat pump 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.

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 1100 uses 0.5m2 of titanium whereas others use less than 0.25m2.

Microwell HP 1100 BLACK dimensions (LxWxH): 932 x 377 x 609 mm. This saves space and does not protrude in the garden.

Microwell HP 1100 BLACK consumes on average 1.95kW while heating to 11.5 kW (air temperature 27°C, water temperature 26°C, relative humidity 80%) at 41dB(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.

ultraQUIET+ offering exceptional silence of the unit eliminating any excessive noise.

easyINSTALL+ Heat pump is designed as plug-n-play device.

WiFi module available on demand.

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

Technical data

Pool capacity (m³ / cover / no cover)
Heating capacity (kW / A27 / W27 / RH80%)
Heating capacity (kW / A15 / W26 / RH70%)
Cooling capacity (kW / A35 / W28 / RH80%)
Rated input power (kW)
Operating air temperature (°C)
Water flow (m³h / kPa)
Power supply
Heat exchanger (Titanium type)
Titanium surface (m²)
Acoustic pressure level dB(A) /1m
Water circuit connection (mm / inch )
Net dimensions (WxHxD)
HP 1000 GREEN On-Off
-5°C...+43°C, with accessories: -15°C...+60°C
Titanium Gr 1 ASTM B265
50 (6/4´´)
HP 1100 GREEN Inverter Pro
Titanium Gr 1 ASTM B265
50 (6/4´´)
HP 1400 GREEN On-Off
-5°C...+43°C, with accessories: -15°C...+60°C
Titanium Gr 1 ASTM B265
50 (6/4´´)
HP 1500 GREEN Inverter Pro
Titanium Gr 1 ASTM B265
50 (6/4´´)
HP 1700 GREEN On-Off
-5°C...+43°C, with accessories: -15°C...+60°C
Titanium Gr 1 ASTM B265
50 (6/4´´)
HP 1700 Green Inverter ro
Titanium Gr 1 ASTM B265
50 (6/4´´)
HP 2100 GREEN Inverter Pro
Titanium Gr 1 ASTM B265
50 (6/4´´)
HP 2300 Inventor
-5°C...+43°C, with accessories: -15°C...+60°C
Titanium Gr 1 ASTM B265
50 (6/4´´)
HP 2400 Premium
-5°C...+43°C, with accessories: -15°C...+60°C
Titanium Gr 1 ASTM B265
50 (6/4´´)
HP 2700 GREEN Inverter Pro
Titanium Gr 1 ASTM B265
50 (6/4´´)
-5°C...+43°C, with accessories: -15°C...+60°C
Titanium Gr 1 ASTM B265
50 (6/4´´)
-5°C...+43°C, with accessories: -15°C...+60°C
Titanium Gr 1 ASTM B265
50 (6/4´´)

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

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