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The Thermotec Edge Inverter Heat Pump is a high-performance, energy-efficient heating and cooling solution designed for koi ponds, swimming pools and aquatic systems. Available in models ranging from 10kW to 30kW, the Thermotec Edge combines advanced full inverter technology with intelligent temperature control to deliver reliable, economical year-round operation.
Featuring a variable-speed inverter compressor and fan, the Thermotec Edge automatically adjusts its heating output according to demand. This helps maintain stable water temperatures while reducing electricity consumption, operating noise and unnecessary wear compared with traditional fixed-speed heat pumps.
Designed to operate in ambient temperatures as low as -15°C, the Thermotec Edge is particularly well suited to koi ponds requiring controlled temperatures throughout the colder months. Its high-efficiency design offers a COP of up to 21.5 under favourable operating conditions, delivering excellent heating performance while keeping running costs to a minimum.
The integrated WiFi functionality allows users to monitor and adjust temperatures remotely, providing convenient control of their pond heating system. Selected models also feature a boost function, delivering additional heating capacity when required.
Built with a corrosion-resistant titanium heat exchanger and durable outdoor casing, the Thermotec Edge is designed for long-term reliability in demanding outdoor environments.
Key Features
Full inverter technology for energy-efficient heating and cooling.
Available in heating capacities from 10kW to 30kW.
Suitable for year-round operation, including ambient temperatures as low as -15°C.
COP of up to 21.5 under optimal operating conditions.
Integrated WiFi connectivity for remote temperature monitoring and adjustment.
Variable-speed compressor and fan for quiet, economical operation.
Boost function on applicable models for increased heating output.
Titanium heat exchanger for durability and corrosion resistance.
Intelligent temperature control to maintain stable water temperatures.
Remote diagnostic capabilities for easier troubleshooting and servicing.
Ideal for Koi Ponds
Maintaining stable water temperatures is an important part of successful koi keeping, particularly during seasonal temperature changes and winter months.
The Thermotec Edge range allows pond owners to manage water temperatures efficiently, whether maintaining warmer conditions during the growing season, controlling temperature fluctuations or providing supplementary heating throughout winter.
With multiple heating capacities available, the range can accommodate a wide variety of pond sizes and installations. Correct sizing will depend on pond volume, insulation, covers, desired temperature and environmental conditions.
Installation Information
The Thermotec Edge is designed for installation outdoors with adequate airflow around the unit. A suitable water circulation system and bypass arrangement should be installed to maintain the manufacturer's recommended flow rate.
Electrical installation must be carried out by a suitably qualified electrician in accordance with the requirements of the selected model.
Warranty
3-year parts and labour warranty.
5-year compressor and heat exchanger warranty.
Choosing the Correct Model
Heat pump performance and efficiency vary depending on ambient air temperature, water temperature and operating conditions.
Please contact Queni Koi Southern if you require assistance selecting the most suitable Thermotec Edge model for your pond.
Please Note: Heating capacity, electrical requirements, dimensions, water flow rates and performance figures vary between models. Please refer to the technical specifications for your selected model before purchasing.
Model kW Recommended Max Pool Volume Absolute Max Pool Volume Thermotec Edge Horizontal 10.5kW Boost to 12kW 30m³ 45m³ Thermotec Edge Horizontal 13.8kW Boost to 15kW 40m³ 60m³ Thermotec Edge Horizontal 17kW Boost to 18kW 50m³ 75m³ Thermotec Edge Horizontal 20.5kW Boost to 22kW 65m³ 95m³ Thermotec Edge Horizontal 21.5kW Boost to 23.5kW (3 Phase) 65m³ 95m³ Thermotec Edge Horizontal 25kW Boost to 28kW 75m³ 120m³ Thermotec Edge Horizontal 30kW Boost to 32kW 93m³ 116m³ Thermotec Edge Horizontal 30kW Boost to 32kW (3 Phase) 93m³ 116m³ Model Rated Current Runs from 13A UK Plug? Min Cable Size MCB RCD 10.5kW boost to 12kW 11.2A Yes 2.5mm2 Type C 13A 13.8kW boost to 15kW 12.5A Yes 2.5mm2 Type C 13A 17kW boost to 18kW 14.1A No 2.5mm2 Type C 16A 20.5kW boost to 22kW 16.6A No 4mm2 Type C 25A 21.5kW boost to 23.5kW (3-Phase) 9.04A No 6mm2 Type C 32A 25kW boost to 28kW 23.91A No 6mm2 Type C 32A 30kW boost to 32kW 27.4A No 6mm2 Type C 32A 30kW boost to 32kW (3 Phase) 12.0A No 2.5mm2 Type C 20A Please Note: The warranty will not apply where the heat pump has been installed incorrectly, or has been damaged by freezing.
Please Note: These are not eligible for loyalty points -
What types of products do you offer?
At Queni Koi Southern, we provide a curated selection of high-quality pond supplies and premium koi food. Our products include innovative items like the Sinking Air Line for seamless pond aeration and advanced koi food such as the JPD Shogun, designed to enhance the health and vibrancy of your koi.
How can I ensure the well-being of my koi?
To promote the well-being of your koi, it's essential to provide them with high-quality food and maintain a healthy pond environment. Our expertly formulated koi food under the trademarked brand Kenko Koi food and our pond supplies are designed to support the health and vibrancy of your aquatic life, ensuring your pond remains a thriving ecosystem.
What is your shipping policy?
We pride ourselves on prompt delivery! We offer free next working day delivery on orders over £100, and we use trusted carriers to ensure your products arrive safely and on time. For more details, please check our shipping policy on our website.
What should I do if I receive a damaged or incorrect product?
If you receive a damaged or incorrect product, please contact us at orders@queni-koi.co.uk as soon as possible. We will replace the product free of charge and cover the return shipping costs for the incorrect or damaged item.
Can I return koi or specially made products?
Unfortunately, once koi have left our premises, we cannot accept any responsibility for them, and they cannot be returned. Additionally, specially made products, such as custom filtration systems, can only be returned if they are faulty or damaged.
How do I cancel my order?
If you wish to cancel your order, you can do so within 14 days of receiving your products. Please contact us at orders@queni-koi.co.uk for authorization.
What is your refund policy?
We will refund all sums paid by you if the items are returned in the condition they were sent. Please allow up to 3-5 days for us to process your return once we receive the items back.
How can I contact customer support?
You can reach our customer support team by emailing us at sales@qk-s.co.uk or by calling us / messaging us on Whatsapp at 0116 2677053. We're here to help!



