BritTherm Сirculator Pump S5 Series S5 25/10-180 (661999503)

The BritTherm S5 25/10-180 Circulator Pump is engineered for powerful, intelligent performance in high-demand commercial water systems. Its robust EN1.4521 stainless steel body and 13 selectable operating modes make it a premium choice for maintaining optimal flow and pressure in potable water systems. From constant speed to AUTO, constant pressure and proportional pressure modes, this pump adapts to the demands of complex systems while reducing energy usage and enhancing durability through built-in protections. Ideal for commercial potable water circulation, the BritTherm Circulator Pump S5 Series S5 25/10-180 delivers top-tier performance and reliability. With a 180mm body crafted from EN1.4521 stainless steel, this pump resists corrosion and supports hygienic water supply operations. It features 13 programmable modes including four constant rotor speed settings, AUTO mode for hands-free optimisation, four constant pressure settings, and four proportional pressure modes that respond dynamically to demand changes. These advanced features help to reduce operating costs while improving system stability and responsiveness. Built-in thermal and electrical protections guard against system faults, ensuring consistent and reliable operation in demanding commercial settings.   Features & Benefits: ✅ Durable stainless steel EN1.4521 casing for potable water use ✅ 180mm body length suitable for commercial installations ✅ 13 user-selectable modes for complete control ✅ AUTO mode optimises performance and energy savings ✅ Four constant speed modes for reliable flow ✅ Four CP settings maintain constant pressure ✅ Four PP settings respond to changing system demand ✅ Electrical protection to prevent overload ✅ Thermal protection to avoid overheating ✅ Ideal for large-scale potable water applications

BritTherm Сirculator Pump B4 Series B4 25/5-180 (661999006)

The BritTherm B4 25/5-180 Circulator Pump is a high-efficiency solution for potable water circulation in larger systems. Designed with a 180mm body length and 25mm connections, it combines traditional fixed-speed control with nine intelligent operating modes, including AUTO, constant pressure, and proportional pressure options. With built-in energy-saving features and protective mechanisms, this pump delivers reliable performance, especially where longer pump bodies are required for direct replacements. The BritTherm Circulator Pump B4 25/5-180 is engineered for flexibility and long-lasting efficiency in heating and potable water systems. With its extended 180mm body, it is particularly suitable for direct replacement in installations requiring this size. Its 25mm ports support medium-head circulation applications, while the smart control system automatically adjusts performance for changing flow demands. The pump offers three manual speed options, AUTO mode for self-adjusting operation, two constant pressure settings (CP1 and CP2), and two proportional pressure modes (PP1 and PP2). For additional efficiency, the Night Operating Mode reduces power use to just 5 watts when demand is low. Electrical and thermal protection safeguards the unit from voltage fluctuations and overheating, making it a dependable choice for modern plumbing systems. Features & Benefits: ✅ Extended 180mm body ideal for replacement installations ✅ 25mm connections suitable for potable water circulation ✅ AUTO mode for intelligent, hands-free performance ✅ Three selectable fixed speeds ✅ Two constant pressure modes (CP1, CP2) ✅ Two proportional pressure modes (PP1, PP2) ✅ Night mode lowers energy usage to 5W ✅ Smooth and quiet operation ✅ Overheat and electrical protection included ✅ Simple, intuitive push-button controls

BritTherm Replacement Pump Head H4 Series H4 25/6 (661996605)

The BritTherm H4 25/6 Replacement Pump Head is a versatile and energy-efficient clockwise-rotating motor head ideal for combination gas boilers. Designed with built-in PWM (Pulse Width Modulation) functionality, it allows seamless remote control of rotor speed via a low-voltage signal from the boiler’s electronic board. Compatible with leading thermostat brands such as Siemens and Honeywell, the H4 25/6 is a dependable solution for modern heating systems including underfloor heating, solar installations, and heat pumps. Optimise your central heating system with the BritTherm H4 25/6, a reliable and easy-to-install replacement pump head built for clockwise rotor operation. This advanced motor uses PWM technology for remote speed adjustment and integrates directly with your boiler’s controller for smart, efficient operation. The H4 25/6 is equipped with 11 automatic operating programmes and 3 constant-speed modes, giving it the flexibility to handle a variety of domestic heating requirements. Its energy-saving night mode reduces consumption to just 5 watts without sacrificing performance. Built-in thermal and electrical protection ensure long-term reliability, making this unit ideal for any homeowner or engineer seeking a robust, energy-conscious upgrade.   Features & Benefits: ✅ Clockwise rotation for compatibility with a wide range of boilers ✅ Integrated PWM for smart remote speed control ✅ Compatible with Siemens, Honeywell, and other thermostat systems ✅ Suitable for smart home, solar, and heat pump systems ✅ 11 automatic operation programmes ✅ 3 constant “Old School” speed settings ✅ Night Power Reduction Function (down to 5W) ✅ Built-in protection against electrical and thermal faults ✅ Easy to retrofit and install ✅ Boosts system efficiency and reduces energy bills ✅ Designed for modern heating system upgrades

BritTherm Сirculator Pump B1 Series B1 20/12-180 (661996708)

The BritTherm B1 20/12-180 Circulator Pump is a high-performance, three-speed circulation pump built with a durable bronze body for safe use with cold and hot drinking water. Designed for demanding applications, this model delivers strong flow capacity and flexibility with manually selected speed settings. With reliable thermal and electrical protection, it’s a time-tested solution for domestic and light commercial systems. Built to handle higher capacity circulation requirements, the BritTherm B1 20/12-180 Circulator Pump offers robust performance in potable water systems. Its bronze body construction provides excellent corrosion resistance, making it suitable for both hot and cold water circulation. The pump features a manual switch with three fixed speeds, enabling users to easily adjust flow settings across the full power range to match the system's demands. This “Old School” design is favoured for its reliability and simplicity in a wide range of installation types. To ensure safe and long-lasting operation, the pump is equipped with integrated electrical and thermal protection systems. These features safeguard against external faults and thermal overloads, preventing unexpected breakdowns and maintaining system reliability. This model’s 180mm length and powerful performance make it ideal for larger domestic systems, commercial premises, or multi-zoned heating and water circulation applications.   Features & Benefits: ✅ Three-speed manual operation for adaptable flow control ✅ High-capacity performance for larger systems ✅ Bronze body for safe use with drinking water ✅ Reliable and easy-to-service design ✅ Electrical and thermal safety protection built in ✅ Ideal for both domestic and commercial water systems

BritTherm Automatic Сirculator Pump P5 Series P5 25/5-130 (661995706)

The BritTherm P5 25/5-130 Circulator Pump is a high-efficiency, intelligent solution for domestic heating systems, including boilers, HIUs, and hot water loops. Featuring a 5-metre head and standard 130mm body, it fits most modern installations with ease. With 10 operation modes, dual PWM control, and an energy-saving night function, this pump is ideal for systems requiring adaptive pressure and speed control. It’s compatible with popular thermostat brands and offers a smart, safe, and reliable heating upgrade. The BritTherm P5 25/5-130 Circulator Pump delivers robust performance and intelligent operation, suited for a wide variety of heating system configurations. With a 5-metre head height and 25mm connections, it’s well-matched for zoned central heating, hot water recirculation, and underfloor heating circuits. The unit includes 10 built-in control modes that cater to varied system needs: AUTO mode for general use, constant pressure settings (CP1 and CP2) for steady-flow systems, and proportional pressure modes (PP1 and PP2) for systems where flow demand varies. It also offers three fixed speeds for legacy system compatibility. Dual PWM terminals (GT and ST) allow integration with smart thermostats from trusted brands like Siemens and Honeywell. The night mode reduces power usage to only 5 watts, cutting energy bills without compromising comfort. Protection features include advanced electrical and thermal safeguards that enhance pump durability and shield it from system-related faults, delivering confidence and longevity for the installer and homeowner alike.   Features & Benefits: ✅ Compact 130mm body for easy installation ✅ 5-metre head ideal for small to medium heating circuits ✅ 25mm ports for standard domestic systems ✅ Dual PWM control inputs for remote integration ✅ AUTO mode handles 80% of household setups ✅ Constant & proportional pressure settings for precision control ✅ Legacy three-speed mode for older systems ✅ Night-time power reduction down to 5W ✅ Thermal and electrical protection built in ✅ Compatible with Siemens, Honeywell, and other major controllers

BritTherm Automatic Сirculator Pump P6 Series P6 32/12-180 (661995804)

The BritTherm P6 32/12-180 is a high-performance circulation pump engineered for demanding HVAC installations. With a powerful 12-metre head and large 32mm connections, it handles high-volume systems with ease. This advanced model includes 10 automatic modes and twin PWM functions, ensuring compatibility with smart thermostats and delivering maximum energy efficiency. Ideal for underfloor heating and complex systems, it balances performance with reliable protection. Designed for installers seeking maximum flow and versatility, the BritTherm P6 32/12-180 offers a standout 12m head height and 32mm bore, making it ideal for large underfloor heating arrays and multi-zone radiator systems. Its 10 automatic modes cover every installation scenario, from constant and proportional pressure to manual speed settings. With integrated GT and ST PWM control, this pump seamlessly connects to smart thermostats and controllers from brands like Siemens and Honeywell. Energy-saving AUTO and night modes ensure lower running costs without compromising performance. It also includes robust thermal and electrical protection, providing long-lasting safety in any domestic heating setup.   Features & Benefits: ✅ 12m head height for large, multi-zone systems ✅ 32mm ports allow high flow capacity ✅ AUTO Mode fits 80% of heating setups ✅ Constant & proportional pressure modes for fine control ✅ Three-speed manual settings for traditional setups ✅ Dual PWM control (GT & ST) for remote integration ✅ Compatible with Siemens, Honeywell, and more ✅ Energy-efficient with night mode functionality ✅ Built-in electrical and thermal protection ✅ Ideal for demanding underfloor and radiator systems

BritTherm Automatic Сirculator Pump P4 Series P4 25/4-130 (661995602)

The BritTherm P4 25/4-130 Circulator Pump delivers reliable and adaptable performance for a wide range of heating applications, including boilers, heat pumps, and HIUs. Featuring 11 automatic modes and a powerful 4-metre head, this 25mm pump offers superb efficiency and control. The integrated PWM function ensures compatibility with modern thermostats and smart controllers, making it ideal for underfloor and variable-flow systems. The BritTherm P4 25/4-130 Circulator Pump is engineered for efficiency, adaptability, and modern system integration. With a 130mm body and 25mm connections, this pump is perfect for domestic HVAC installations where space and performance go hand-in-hand. Its 4-metre head offers sufficient power for small to mid-size systems, ensuring effective circulation and comfort. Designed to meet the demands of diverse systems, this model includes 11 operating modes: three fixed-speed options for traditional control, AUTO mode for system-responsive performance, and six dynamic pressure settings—three constant (CP1–CP3) and three proportional (PP1–PP3). These modes support everything from underfloor heating to multi-zone heating systems. The P4 25/4-130 also features a PWM (Pulse Width Modulation) interface, allowing low-voltage remote control integration with leading thermostat brands like Honeywell and Siemens. Safety is assured with inbuilt electrical and thermal protection, guarding against common issues such as voltage spikes and overheating.   Features & Benefits: ✅ 25mm connection with a 4-metre head for compact system circulation ✅ Space-saving 130mm body suitable for modern installations ✅ 11 smart work programmes including AUTO and adaptive pressure control ✅ PWM function enables remote control integration with smart thermostats ✅ Compatible with Honeywell, Siemens, and other controller systems ✅ Ideal for HIUs, heat pumps, and underfloor heating ✅ AUTO mode intelligently adapts to system demand ✅ Built-in electrical and thermal protection for long-lasting reliability ✅ Energy-saving performance with night power reduction ✅ Easy setup and simple operation with intuitive control panel

BritTherm Automatic Сirculator Pump P1 Series P1 25/9-130 (661995316)

The BritTherm P1 25/9-130 Automatic Circulator Pump offers a powerful 9-metre head with a compact 130mm body, ideal for demanding heating systems in tight spaces. Featuring an intelligent AUTO Mode, three manual speed settings, and energy-saving night mode, this high-performance pump combines versatility with efficiency. Built-in protection ensures reliable operation in all conditions. Designed to handle higher-pressure requirements in more demanding heating systems, the BritTherm Automatic Circulator Pump P1 Series P1 25/9-130 delivers up to a 9-metre head while maintaining a compact 130mm body size. This makes it an excellent option for space-limited installations where performance cannot be compromised. Equipped with four built-in operational modes, the pump includes a smart AUTO Mode that automatically adapts its performance to match the heating system's requirements. For traditional setups, three fixed-speed settings can be easily selected with a single button. Energy efficiency is enhanced with an Automatic Night Power Reduction Function, which reduces consumption to just 5 watts during low-demand periods. Electrical and thermal protection ensure the pump is safeguarded from external electrical issues.   Features & Benefits: ✅ 9-metre head performance in compact 130mm size ✅ AUTO Mode for intelligent energy-efficient operation ✅ Three selectable fixed speed settings ✅ 5W night power saving mode ✅ Single-button control for ease of use ✅ Electrical & thermal protection built in ✅ Ideal for high-performance heating in tight spaces

BritTherm Automatic Сirculator Pump P1 Series P1 25/12-130 (661995322)

The BritTherm P1 25/12-130 Circulator Pump is a compact, high-performance unit delivering a 12-metre head height for demanding central heating systems. With 130mm body length and 25mm connections, it offers an ideal balance of power and space-saving design. Featuring AUTO Mode for energy-efficient performance and manual speed options for precise control, this pump is perfect for new installations or direct replacements where powerful flow is required in a compact format. The BritTherm P1 Series P1 25/12-130 is designed to handle more demanding heating applications with a high-performance 12-metre head. Despite its power, the 130mm length allows for easy installation in tight spaces, particularly where system upgrades are needed without major pipework changes. Four operating modes—including intelligent AUTO Mode—ensure this circulator pump can optimise energy use without compromising performance. Alternatively, engineers can select one of three manual speeds. The pump also includes an automatic night-time energy-saving mode, reducing power usage to just 5 watts during low-demand periods. With built-in thermal and electrical protection, the P1 25/12-130 is a robust and reliable choice for residential and light commercial use.   Features & Benefits: ✅ High 12m head for increased flow capacity ✅ Compact 130mm body for easy installation ✅ AUTO Mode intelligently adapts to system demand ✅ Three fixed speeds for traditional control ✅ 5W night power reduction for energy savings ✅ Built-in electrical and thermal protection ✅ Ideal for upgrades or restricted spaces