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BritTherm

BritTherm H3 25/8 Replacement Pump Head (661996508)

£154.99
£154.99
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Free next day delivery*

Orders received before 13:00 will be dispatched on a next working day courier service, however, next day delivery can not be guaranteed.

Deliveries to Northern Ireland, and the Highlands and Islands usually take 2-3 working days.

Browse the BritTherm range

H3 25/8 Technical Specifications

Energy Efficiency Index (EEI) ≤ 0.21
Automatic programs: 11
Max Head: 8 meter
Max Flow: 3.6 м³/hour
Power: 3 ~ 65 watt
Current: 0.05 ~ 0.5 ampere
Maximum System Pressure: 10 Bar
Protection Class: IP44
Temperature Class: TF 110C
Insulation Class: E
Color: White-Black
Material: Cast Iron
Weight: 2.0 kg

P/N 661996508

BritTherm H3 Range Features

The H3 Series universal electric motor, featuring remote electronic rotor speed control, is designed for repairing or replacing motors in modern combination gas boilers with COUNTERCLOCKWISE rotor rotation.

Remote Speed Control: Utilizes PWM technology via a low-voltage signal from the boiler's electronic board, enabling compatibility with controllers like Siemens, Honeywell, and smart home systems.

Versatile Applications: Ideal for underfloor heating, solar systems, heat pumps, and more.

11 Automatic Programs: Includes 3 fixed speeds (“Old School”) and energy-efficient night mode reducing power to 5 watts.

Built-In Safety: Electrical and thermal protection guard against external damage.

Download Catalogue (13.6 MB)

  • 6-Year Guarantee

    All BritTherm pumps are backed by a comprehensive 6-year warranty, highlighting their reliability and quality.

  • Energy Efficiency

    All models comply with Ecodesign (ErP) requirements, featuring Energy Efficiency Index (EEI) ratings as low as ≤0.16, offering significant energy savings.

  • Precision Engineering

    Each pump undergoes rigorous testing, including 10-bar pressure tests, to ensure reliability and operational safety.

BritTherm H3 Certifications

UKCA certified: Guaranteeing compliance with UK safety, health, and environmental protection regulations.

CE certified: Ensuring compliance with European safety, health, and environmental protection standards.

  • Low Noise Level

    Engineered for quiet operation, ensuring minimal disruption in domestic and commercial environments.

  • User-Friendly Design

    Features like easy installation, intuitive control panels, and automatic adjustment modes make BritTherm pumps simple to use and maintain.

  • Wide Product Variety

    BritTherm offers a comprehensive range of pumps, including domestic, commercial, solar, underfloor heating, booster, and recirculation pumps, catering to diverse customer needs.

Replacement Pump Heads

Ensure your BritTherm pump stays in peak condition with our range of replacement pump heads, designed for quick and easy installation.
Perfectly compatible with BritTherm circulators, these high-quality replacement heads help extend the lifespan of your pump, delivering reliable performance without the need to replace the entire unit.

View Replacement Pump Heads

Full BritTherm Range

To see the complete range of BritTherm pumps, click below.
The collection includes all sizes and types of the moderm BritTherm range.

View Range

Why Shop With Us

  • FREE EXPRESS DELIVERY

    Express delivery as standard to mainland UK.

  • One Tree Planted for Every Order

    We plant a tree for every delivery made, offsetting our environmental impact one tree at a time.

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  • LOW CARBON DELIVERY

    We ship directly from suppliers to yourself, reducing CO2 production.

  • PAPERLESS WORKING

    We are entirely paperless, cutting down on day-to-day waste. We do not even own a printer!