Why use a heat pump for your koi pond

Easy Install

Simple Operation

Prevents Winter Stress

Extends Season

Stable Water Temperatures

Protect Koi Health

Energy Efficient

Low Operating Cost

20+Years HEATING KOI PONDS

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Andrew Wilson
1 year ago
Excellent service before and after my purchase. Many thanks to Dane for the fantastic customer support. I would highly recommend heatpumpsforpools. I’ll be shopping here again.
Fantastic experience thanks to David Kelly at heatpumps4pools. David checked over my order and made sure it was appropriate for my needs, and facilitated delivery to coincide with my awkward schedule. You have made a loyal customer of me! Thank you so much!
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Stephen Pettitt
2 years ago
Absolutely excellent after sales service.
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Clinton Barnard
2 years ago
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Clare Albinson
2 years ago
A truly great company. Right from the get go of my first enquiry they were more than helpful without being pushy at all and their helpfulness and generosity is continuing even down to helping out with a non warranty issue. I can recommend them wholeheartedly.
Clare

Keep Your Koi Healthy with Thermotec Heat Pumps

Maintaining a stable pond temperature (e.g., +12°C) throughout winter and spring offers significant health benefits for koi, reducing stress and helping prevent diseases and parasite attacks. Stable temperatures avoid harmful fluctuations, supporting koi immune systems and overall well-being.

Heat pumps, like those in the Thermotec Inverter range, are an efficient way to heat koi ponds year-round, significantly reducing heating costs compared to gas boilers or electric heaters.

Operates Down to -15°C

Programmable Accuracy of ±0.5°

High Heat Output at Low Air Temperatures

SELECT YOUR HEAT PUMP

Thermotec Inverter Edge Pond Sizing Guide

Select the right model based on your pond’s volume. For expert advice, contact our team.

ModelMax Pond Volume (Gallons)
Thermotec Edge 10.5kW (12kW Boost)4,500
Thermotec Edge 13.5kW (15kW Boost)6,000
Thermotec Edge 16kW (18kW Boost)7,500
Thermotec Edge 20.5kW (22kW Boost)9,600
Thermotec Edge 24kW (26kW Boost)11,600
Thermotec Edge 26kW (28kW Boost)13,800
Thermotec Edge 30kW (32kW Boost)19,900
Thermotec Edge 30kW (32kW Boost 3-Phase)19,900

Note: The maximum pond volume indicates the capacity each model can effectively heat, based on standard conditions. For precise sizing tailored to your pond, consult HeatPumps4Pools for expert advice.

Select Your Heat Pump!

Key Koi Pond Products...

Thermotec Inverter Edge Horizontal Heat Pump

Thermotec Inverter Edge Horizontal Heat Pump with Wi-Fi for Swimming Pools or Koi Ponds.

See our sizing guide above and ensure you are getting the correct capacity heat pump for your pond!

Add To Cart – 10.5kW (12kW Boost)

Most customers start with the 10.5kW model, but larger options are available!

Add To Cart – 20.5kW (22kW Boost)

Need more power? Explore the next size up:

Add To Cart – 30kW (32kW Boost 3-Phase)

Want to browse the full product range?

View Full Product Range

Frequently Asked Questions

The Thermotec Inverter Pond Heat Pump is recommended because it operates effectively at low ambient temperatures down to -15°C, making it suitable for year-round use, including in harsh winters. Unlike cheaper models designed for summer, it provides high heat output in cold weather and is fully inverter-driven, automatically adjusting compressor and fan speeds for optimal efficiency with COPs up to 13.

HeatPumps4Pools offers free sizing advice to select the correct Thermotec model based on your pond size – see how table below if you know the size of your pond. The kit includes all necessary parts and full installation instructions. A minimum pond water temperature of +8°C is required for startup, and a backup heater is recommended for extreme cold or emergencies. Ensure the pond is covered to minimize heat loss.

HeatPumps4Pools offers free sizing advice to select the correct Thermotec model based on your pond size – see how table below if you know the size of your pond. The kit includes all necessary parts and full installation instructions. A minimum pond water temperature of +8°C is required for startup, and a backup heater is recommended for extreme cold or emergencies. Ensure the pond is covered to minimise heat loss.

As a rule of thumb, we recommend increasing the power of your heater by 2.5x compared to the sizing table above. However, please contact a member of the team before purchasing to ensure you are getting sufficient capacity.

Most customers require the following – mounting feet to ensure the heat pump does not freeze up over winter (from the condensate); a bypass kit to ensure the flow rate through the heater matches manufacuterer recommendations; and a winter cover.

HeatPumps4Pools provides free technical advice, delivery to most UK postcodes, and worldwide shipping. We have a network of over 150 engineers for repairs and support. Contact them at +44 (0)1268-206560 (9 AM–5 PM, Mon–Sat) or enquiries@heatpumps4pools.com. Our address is Unit 3 Sovereign Business Park, Cranes Farm Road, Basildon, SS14 3JD.

Why The Thermotec Is The Right Heat Pump FOR YOUR KOI

Fully Inverter-Driven Technology

The Thermotec Inverter Pro uses advanced inverter technology. It automatically adjusts the compressor and fan speed to meet the heating demand. This ensures maximum efficiency and energy savings. Enjoy ultra-low running costs with a COP of up to 13.
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Smart Wi-Fi & 4G Control

Includes a free Wi-Fi module for remote control via the Aqua Temp App. Monitor and manage your heat pump from your smartphone or browser. No Wi-Fi at the location? Use the optional 3G/4G DTU module with built-in data.
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User-Friendly Touchscreen Display

Comes with a large 5” colour touchscreen panel. Displays real-time water temperature, system status, power usage and more. Shows graphs and fault codes for quick diagnostics. Backlit screen for clear viewing day or night.
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Quiet Operation

Operates with low noise thanks to inverter technology and smart fan control. Adjusts automatically based on temperature needs. Keeps your garden or pond area peaceful and undisturbed.
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Koi Pond Temperature Accuracy

Built-in settings allow for +/- 0.5°C precision. No external thermostat required. For colder climates, we recommend a backup heater below +8°C water temp.
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Remote Technical Support

We can remotely connect to your heat pump for support. Troubleshoot, adjust settings, or diagnose faults from a distance. Faster solutions without the need for an on-site engineer.
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Installation Accessories Included

Each unit comes with essential fittings: Basic winter cover Water connection unions (50mm) Rubber mounting feet Optional extras include heavy-duty covers, feet, and plumbing adaptors.
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Energy-Efficient Performance

Delivers up to 13kW of heat per 1kW of electricity. Significantly reduces your energy bills. A reliable, eco-friendly solution for pool and pond heating.
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