BritTherm S1 Pump

The BritTherm S1 25/4-130 is a high-efficiency, three-speed manual domestic circulator designed for reliability and ease of installation. This model is an ideal replacement for older, failing pumps in domestic central heating systems, providing consistent water flow and whisper-quiet operation.

Key Features & Benefits

• Energy Efficient: Features 3 adjustable speed settings to match the specific flow requirements of your heating system.
• Standard Fitment: The 130mm port-to-port dimension ensures it is a direct "drop-in" replacement for most standard UK domestic pumps.
• Durable Construction: Built with a cast iron body and high-quality internal components for a long service life.
• Quiet Operation: Specifically engineered to reduce vibration and hydraulic noise within the pipework.

Technical Specifications

Designed for use in residential open-vented or sealed systems, the S1 series is compatible with water and water/glycol mixtures (up to 50%).

Compatibility & Installation

The BritTherm S1 25/4-130 is a cost-effective alternative to brands like Grundfos and DAB. It comes with a 130mm face-to-face distance, making it suitable for compact spaces and manifold installations.