Heatform HF Inverter Master Selection Guide

Model Variant	Recommended Pool Size*	Boost Heat Output (Air 15°C / 26°C)	Power Input & Protection	Dimensions (L x W x H) & Weight
HF Inverter XS	30 to 45 m³ (30,000 to 45,000 L)	6.5 kW / 8.9 kW	1.3 kW input (C 10 A breaker)	958 x 380 x 569 mm (47 kg)
HF Inverter S+	55 to 70 m³ (55,000 to 70,000 L)	9.5 kW / 12.2 kW	1.8 kW input (C 16 A breaker)	958 x 380 x 569 mm (53 kg)
HF Inverter M	70 to 85 m³ (70,000 to 85,000 L)	11.2 kW / 16.1 kW	3.4 kW input (C 20 A breaker)	1080 x 474 x 715 mm (62 kg)
HF Inverter XM	85 to 105 m³ (85,000 to 105,000 L)	14.6 kW / 20.4 kW	4.1 kW input (C 20 A breaker)	1080 x 474 x 715 mm (63 kg)
HF Inverter L	105 to 130 m³ (105,000 to 130,000 L)	18.2 kW / 24.2 kW	4.6 kW input (C 25 A breaker)	1178 x 525 x 569 mm (93 kg)

(Recommended pool volumes apply to covered outdoor pools operating May through September. All models require a standard 230V / 1-Phase / 50Hz electrical supply.)

Precision Climate Control for Residential Swimming Pools The Heatform HF Inverter range delivers engineered thermal management across five distinct cabinet sizes (XS, S+, M, XM, and L) tailored specifically for domestic pool installations. By modulating compressor and fan performance in real time, the unit continuously matches thermal loss to maintain ideal water temperatures without consuming excess electricity.

Three Intelligent Operating Modes Tailor performance effortlessly to match heating demands and acoustic preferences:

Boost Mode: Operates at 100 percent capacity to quickly bring cold pool water up to target temperature.
Smart Mode: Automatically modulates output between full speed and low speed, maintaining water temperature with COP efficiency ratings reaching between 5.2 and 10.8 in warm weather.
Silence Mode: Restricts power output for whisper-quiet evening operation, achieving maximum efficiency ratios up to 10.8 COP while using minimal electricity.

Acoustic Insulation and Standard Single Phase Wiring Engineered for garden environments, noise output at 10 metres ranges from an imperceptible 23 dB(A) on the XS model up to 31 dB(A) on the flagship L model. Every model operates on a standard 230V single phase electrical supply, allowing straightforward connection to residential distribution boards with appropriate C-curve circuit breakers.

Professional Installation and Setup Available We offer complete professional installation and commissioning services for customers who prefer a seamless, hassle-free installation. Our qualified engineers manage positioning, bypass plumbing integration, electrical safety checks, and initial Wi-Fi setup to ensure your system operates at peak seasonal efficiency right from day one.

Eco-Friendly R32 Refrigerant Technology Pre-charged with high efficiency R32 refrigerant, the system maximizes heat capture from outdoor ambient air while meeting modern environmental standards.

Key Technical Specifications

Operating Power Supply: 230V / Single Phase / 50 Hz
Refrigerant Type: Eco-friendly R32 gas
Maximum Heating Capacity (Air 26°C / Water 26°C): 8.9 kW (XS) up to 24.2 kW (L) in Boost Mode
Seasonal Heating Capacity (Air 15°C / Water 26°C): 6.5 kW (XS) up to 18.2 kW (L) in Boost Mode
Maximum Power Input: 1.3 kW (XS), 1.8 kW (S+), 3.4 kW (M), 4.1 kW (XM), and 4.6 kW (L)
Required Circuit Breaker Rating: C 10 A (XS), C 16 A (S+), C 20 A (M & XM), and C 25 A (L)
Minimum Water Flow Requirements: 3 m³/h (XS), 4 m³/h (S+), 5 m³/h (M), 6 m³/h (XM), and 8 m³/h (L)
Acoustic Noise Output at 10m: 23 to 26 dB(A) on XS up to 26 to 31 dB(A) on L
Net Unit Weight: 47 kg (XS), 53 kg (S+), 62 kg (M), 63 kg (XM), and 93 kg (L)

Installation & Operating Guidelines

Electrical Infrastructure Verification: Confirm your distribution board has sufficient capacity for the dedicated C-type circuit breaker specified for your chosen model (10A to 25A).
Plumbing Integration: Install the heat pump on the return line downstream of primary filtration, ensuring your pump delivers the required minimum water flow rate (3 m³/h to 8 m³/h depending on model).
Positioning and Clearances: Place the heat pump on a solid, level pad outdoors, providing clear air intake and exhaust space around the housing.
Operation Mode Configuration: Set your target temperature on the digital display and select Boost Mode for initial warming, switching to Smart Mode for automated daily management.

Frequently Asked Questions

Which Heatform HF Inverter model suits my pool size? Pool sizing applies to covered pools running May through September: XS suits 30 to 45 m³, S+ suits 55 to 70 m³, M suits 70 to 85 m³, XM suits 85 to 105 m³, and L suits 105 to 130 m³.

What electrical breaker size is needed for the Heatform HF Inverter? All units require a 230V single phase supply. The XS model uses a 10A breaker, S+ uses 16A, M and XM use 20A, and the L model uses a 25A breaker.

How quiet is the Heatform HF Inverter during operation? At 10 metres distance, sound pressure levels range between 23 dB(A) and 31 dB(A) depending on model size and operational mode, keeping garden sound to a minimum.

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