BritTherm Сirculator Pump S4 Series S4 25/4-180 (661999403)

The BritTherm S4 25/4-180 Circulator Pump offers intelligent circulation for potable water systems, designed with a longer 180mm body and 1" BSP connections. With 9 smart operating modes including AUTO, constant pressure, and proportional pressure settings, this pump ensures efficient, reliable performance tailored to system demand. It’s housed in durable stainless steel and features electrical and thermal protection for long-term safety. The BritTherm Circulator Pump S4 25/4-180 is built for installers and engineers looking for efficiency, flexibility, and dependability in potable water circulation. Its extended 180mm length makes it ideal for replacing pumps in systems with longer fixing centres. With nine intelligent operating modes, including energy-saving AUTO and Night Mode, the pump dynamically adjusts to varying flow demands without manual recalibration. It features three “Old School” fixed-speed settings, two constant pressure (CP1, CP2), and two proportional pressure (PP1, PP2) modes for advanced control. Constructed with an EN1.4521 stainless steel casing, it’s safe for potable water use and protected against overheating and electrical faults. Whether you're fitting new or retrofitting existing pipework, this pump is a top-tier solution.   Features & Benefits: ✅ 180mm pump length with 1" BSP connections ✅ Hygienic EN1.4521 stainless steel construction ✅ 9 smart operation modes including AUTO and Night Mode ✅ Classic 3-speed manual control option ✅ Constant pressure settings: CP1 & CP2 ✅ Proportional pressure settings: PP1 & PP2 ✅ Night Mode lowers energy use to 5W ✅ Built-in electrical and thermal protection ✅ Ideal for potable water circulation systems ✅ Excellent for both domestic and light commercial use

BritTherm Сirculator Pump B3 Series B3 25/4-130 (661996902)

The BritTherm B3 25/4-130 Circulator Pump is a high-efficiency, smart pump designed for potable water circulation and recirculation systems. It features 9 built-in intelligent operating modes, including AUTO, constant and proportional pressure settings, three fixed speeds, and an energy-saving night mode. This model is ideal for a range of domestic and light commercial applications. A simple one-button interface makes operation straightforward, while built-in electrical and thermal protection ensures safety and reliability in all conditions. Designed for modern water circulation systems, the BritTherm Circulator Pump B3 Series B3 25/4-130 offers intuitive functionality with nine intelligent modes to meet diverse system requirements. AUTO mode dynamically selects the most efficient setting based on current demand, while CP1 and CP2 maintain constant pressure across varying flow rates. PP1 and PP2 automatically adjust pressure in proportion to changes in flow, providing tailored performance. Three traditional fixed-speed settings are available for manual control, and night mode reduces power usage to just 5 watts during low-demand periods. With electrical and thermal protection included, the pump defends against overheating and voltage issues. Its 130mm length makes it compact and installation-friendly, perfect for space-conscious environments.   Features & Benefits: ✅ 9 intelligent modes including AUTO, CP1, CP2, PP1, and PP2 ✅ Night mode reduces energy usage to just 5W ✅ Three fixed speeds for manual operation ✅ Easy-to-use single-button interface ✅ Constant and proportional pressure settings ✅ Smart adaptability to flow rate and system demands ✅ Compact 130mm body for straightforward fitting ✅ Electrical and thermal protection built in ✅ Ideal for domestic or light commercial use ✅ Optimised for potable water circulation and recirculation

BritTherm Automatic Сirculator Pump P5 Series P5 32/7-180 (661995716)

The BritTherm P5 32/7-180 Circulator Pump is a versatile pump designed for HVAC applications such as boilers, heat pumps, and heat interface units (HIUs). It features a 7-metre head and 32mm connections, providing reliable performance for domestic heating systems. With two unique PWM control modes compatible with major thermostats like Siemens and Honeywell, this pump offers 10 automatic operation modes for adaptable and efficient heating control, including an energy-saving night mode. The BritTherm P5 32/7-180 Circulator Pump is built to deliver efficient and adaptable performance in a wide range of heating systems, including boilers, heat pumps, and HIUs. Designed with 32mm pipe connections and a 7-metre head, it is well-suited to systems requiring higher pressure and consistent flow rates. This pump incorporates two unique PWM functions (GT and ST) for remote control via two low-voltage control cables. This feature ensures compatibility with a broad selection of controllers and thermostats, including popular brands like Siemens and Honeywell. It offers 10 automatic operation modes tailored to meet various system demands: AUTO mode provides a simple one-button start suitable for approximately 80% of heating systems. Two Constant Pressure Modes (CP1 and CP2) are ideal for underfloor heating and systems with stable flow requirements. Two Proportional Pressure Modes (PP1 and PP2) adapt to systems with more variable flow demands. Three fixed speed settings allow manual control over the full power range. An automatic night power reduction function decreases energy use to just 5 watts during low demand periods, without compromising heating quality. Electrical and thermal protections safeguard the pump against damage caused by external influences, ensuring long-lasting reliability.   Features & Benefits: ✅ 32mm connections for steady flow rates ✅ 7-metre head suitable for higher pressure requirements ✅ 180mm installation length for versatile fitting ✅ One-button AUTO mode for quick and easy setup ✅ Constant pressure modes perfect for underfloor heating ✅ Proportional pressure modes for systems with changing flow rates ✅ Three fixed speeds for manual operation ✅ Energy-saving night mode reduces consumption to 5W ✅ PWM remote control compatible with Siemens, Honeywell, and more ✅ Electrical and thermal protections to prevent pump damage

BritTherm Automatic Сirculator Pump P6 Series P6 32/15-180 (661995806)

The BritTherm P6 32/15-180 is the most powerful model in the P6 Series, delivering a massive 15-metre head for the most demanding central heating and underfloor systems. With 32mm connections, 10 operational modes and dual PWM compatibility, this pump offers smart control and exceptional performance. Ideal for commercial-scale or complex domestic installations, it provides robust flow, enhanced safety, and effortless automation. For installations requiring unmatched power and reliability, the BritTherm P6 32/15-180 is a high-output solution tailored to modern heating systems. With its 15m head height, this 180mm pump easily supports extended pipe runs and multi-zone underfloor heating or radiator circuits. It comes equipped with 10 selectable modes, including constant and proportional pressure settings, and three fixed-speed options for legacy systems. Its dual PWM control modes (GT and ST) allow remote operation with leading thermostats and controllers, including Siemens, Honeywell and others. Electrical and thermal protections are built-in to prevent damage from system faults or overheating. Whether you’re fitting a high-volume domestic system or light commercial heating, this pump ensures consistent, efficient circulation.   Features & Benefits: ✅ Massive 15m head for large or multi-zone systems ✅ 32mm ports for high-volume water flow ✅ AUTO Mode suits 80% of heating applications ✅ Constant and proportional pressure modes for system tuning ✅ Three fixed-speed options for traditional control ✅ Dual PWM (GT & ST) compatible with major brands ✅ Ideal for smart thermostats and controllers ✅ Integrated electrical and thermal safety features ✅ Quiet, efficient motor reduces running costs ✅ Designed for large HVAC and underfloor systems

BritTherm Automatic Сirculator Pump P4 Series P4 25/4-180 (661995603)

The BritTherm P4 25/4-180 Circulator Pump offers high performance and installation flexibility for modern HVAC systems. With a 180mm body length and 4-metre head, this 25mm pump is suitable for larger installations, heat interface units, and underfloor heating. Featuring 11 automatic work programmes and PWM remote control compatibility, it adapts to a wide range of heating demands while improving efficiency and control. Designed for demanding domestic and commercial systems, the BritTherm P4 25/4-180 Circulator Pump combines intelligent functionality with exceptional flexibility. Its longer 180mm body makes it ideal for retrofits and systems requiring extended fitting space, while the 25mm connections and 4-metre head ensure reliable circulation across standard heating loops. Equipped with 11 work modes—including AUTO mode, three constant pressure settings (CP1–CP3), and three proportional pressure settings (PP1–PP3)—the pump can automatically adapt to changing flow demands, making it perfect for underfloor heating and zoned systems. Traditional fixed-speed modes are also available for simpler setups. The integrated PWM control interface allows for remote pump frequency management using compatible thermostats such as Siemens and Honeywell, supporting energy-saving smart home installations. Built-in electrical and thermal protection safeguards against system faults and ensures long-term reliability.   Features & Benefits: ✅ 25mm connections with a 4-metre head – ideal for compact and mid-size heating systems ✅ 180mm extended body – suitable for installations needing more reach ✅ 11 intelligent modes including AUTO, constant, and proportional pressure control ✅ PWM interface supports remote control from smart thermostats ✅ Compatible with major brands like Siemens and Honeywell ✅ Excellent for boilers, HIUs, heat pumps, and underfloor heating ✅ AUTO mode adjusts output to system needs automatically ✅ Electrical and thermal protection guards against damage ✅ Night power reduction for energy-efficient operation ✅ Simple user interface for fast setup and configuration

BritTherm Automatic Сirculator Pump P1 Series P1 25/5-180 (661995305)

The BritTherm P1 25/5-180 Circulator Pump is designed for optimal performance in larger heating systems requiring a 180mm pump body. Equipped with smart AUTO mode, three manual speed settings, and an energy-saving night function, it intelligently adapts to system demands while keeping energy usage low. With electrical and thermal protection, it ensures reliable, long-lasting operation in both domestic and light commercial environments. The BritTherm Automatic Circulator Pump P1 25/5-180 offers smart, energy-efficient heating control in a robust 180mm format. Ideal for homes and small commercial systems, this model automatically adjusts its performance using intelligent AUTO mode to match real-time system requirements—delivering comfort while reducing energy consumption. Installers can manually select between three fixed-speed settings for tailored control when preferred, and the integrated night-time reduction mode drops power usage to as low as 5 watts when demand is low. With built-in electrical and thermal protection, the pump resists damage from power surges or overheating, ensuring consistent and dependable circulation. The 180mm body provides flexibility for systems that require a longer fitting size, making the P1 25/5-180 a reliable upgrade or replacement choice.   Features & Benefits: ✅ 180mm body ideal for larger heating systems ✅ Smart AUTO mode adapts to system demand ✅ Manual fixed-speed operation with 3 selectable settings ✅ Energy-saving night function reduces power to 5W ✅ Integrated thermal and electrical safety protection ✅ 1" BSP connections for standard system compatibility ✅ Quiet operation with low vibration ✅ Easy one-button interface for quick adjustments