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Best Central Heating Systems Accessories of 2025
Last updated on 24/12/2025
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Heat Pumps
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1
Trident Central Heating Water Circulation Pump
Trident
Why we love it
Silent running with ceramic bearings.
Accommodates most heating systems.
Comes with 6-year warranty.
Main Highlights
Ceramic bearings and shaft for silent running.
Easily accommodates the majority of heating systems.
Free cast iron connectors and rubber washers included.
6-year UK warranty. CE approved.
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9.8
Exceptional
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9.8
Exceptional
Trident
Trident Central Heating Water Circulation Pump
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Why we love it
Silent running with ceramic bearings.
Accommodates most heating systems.
Comes with 6-year warranty.
Main Highlights
Ceramic bearings and shaft for silent running.
Easily accommodates the majority of heating systems.
Free cast iron connectors and rubber washers included.
6-year UK warranty. CE approved.
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Value for Money
2
Team Controls Magnetic Boiler Filter 22mm Inline for Central Heating inc Full Bore Valves with Metal Handle - Team Supplies TCFILTER
Teams
Why we love it
Full bore valves included.
Efficient central heating protection.
Durable metal handle design.
Main Highlights
360 Fully Rotatable Installation
Full Bore Isolating Ball Valves with Metal Handles
Convenient in Line Fitting
Low Profile Drain Valve
Actively Filters Magnetite & Non-Ferrous System Debris
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9.7
Exceptional
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9.7
Exceptional
Teams
Team Controls Magnetic Boiler Filter 22mm Inline for Central Heating inc Full Bore Valves with Metal Handle - Team Supplies TCFILTER
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Why we love it
Full bore valves included.
Efficient central heating protection.
Durable metal handle design.
Main Highlights
360 Fully Rotatable Installation
Full Bore Isolating Ball Valves with Metal Handles
Convenient in Line Fitting
Low Profile Drain Valve
Actively Filters Magnetite & Non-Ferrous System Debris
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3
DB 5300 Central Heating System Freeze & Corrosion Protection – Long Lasting Antifreeze & Corrosion Inhibitor for Boilers, Radiators & Heating Systems – Professional Grade Protection 5 Litre
Chemiphase
Why we love it
Advanced freeze and corrosion protection.
Prevents costly damage and repairs.
Trusted by heating professionals.
Main Highlights
Complete Heating System Protection – DB 5300 provides advanced freeze and corrosion protection for boilers, radiators, and pipework, ensuring your central heating runs efficiently all year round.
Prevents Costly Damage – Protects against frozen pipes, rust, and scale build-up, extending the lifespan of your entire heating system and helping to avoid expensive repairs.
Professional Strength Formula – Trusted by heating engineers, this high-performance antifreeze and corrosion inhibitor delivers long-lasting protection even in harsh winter conditions.
Safe & Compatible – Suitable for use with all types of central heating systems, including mixed metal radiators, aluminium components, and modern condensing boilers.
Easy to Use – Simply add to the central heating system water for instant protection. Clear dosage instructions included for hassle-free application.
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9.5
Superb
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9.5
Superb
Chemiphase
DB 5300 Central Heating System Freeze & Corrosion Protection – Long Lasting Antifreeze & Corrosion Inhibitor for Boilers, Radiators & Heating Systems – Professional Grade Protection 5 Litre
Check Price
Show More
Why we love it
Advanced freeze and corrosion protection.
Prevents costly damage and repairs.
Trusted by heating professionals.
Main Highlights
Complete Heating System Protection – DB 5300 provides advanced freeze and corrosion protection for boilers, radiators, and pipework, ensuring your central heating runs efficiently all year round.
Prevents Costly Damage – Protects against frozen pipes, rust, and scale build-up, extending the lifespan of your entire heating system and helping to avoid expensive repairs.
Professional Strength Formula – Trusted by heating engineers, this high-performance antifreeze and corrosion inhibitor delivers long-lasting protection even in harsh winter conditions.
Safe & Compatible – Suitable for use with all types of central heating systems, including mixed metal radiators, aluminium components, and modern condensing boilers.
Easy to Use – Simply add to the central heating system water for instant protection. Clear dosage instructions included for hassle-free application.
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4
Kudos-Trading - Fernox F8 Super Strength Cleaner Boiler Central Heating System Sludge Remover Radiator Protector Inhibitor 500ml Boiler Protection Cleaner
Kudos-Trading
Why we love it
Restores system efficiency rapidly.
Easy for DIY use.
Cost-effective concentrated solution.
Main Highlights
New, advanced and improved formula, super strength, rapid, powerful central heating cleaner for heavily contaminated, dirty systems. Strong, citric acid cleaner to restore efficiency; delivers rapid results.
Easy to use and apply: Fernox F8 Cleaner can be added to the system via a radiator, filling loop, or a Fernox Tf1 filter, making it simple for both professionals and DIY enthusiasts to use.
Non-foaming, faster to flush from system, easy to use; system can operate normally during the cleaning process. It accelerates all cleaning processes; powerflush, manual and magnetic flush. Removes dirt, limescale and other installation and corrosion debris, compatible with all metals and materials, including aluminium.
Concentrated solution for cost-effective treatment: One 500ml bottle of Fernox F8 Cleaner is sufficient to treat an average-sized domestic central heating system, offering a cost-effective solution to maintain system efficiency.
Eliminates radiator cold spots and system noise, treating up to 130L One bottle treats up to 130 litres, 16 radiators and 250 sqm of underfloor heating which covers 97% of Uk homes
Citrate-based cleaner for use in heavily contaminated systems in accordance with bs 7593:2019, Fast-acting; accelerates all cleaning processes including powerflushing, manual and magnetic flushes
Compatible with all metals and materials: Safe to use with any central heating system, Fernox F8 Cleaner is compatible with all metals, including aluminum, and a wide range of materials such as plastics and rubber.
Rapid results: With a fast-acting formula, Fernox F8 Cleaner works quickly to deliver noticeable improvements in system performance, usually within as little as one hour of circulation.
Power Cleaner F8 is supplied in 500 ml bottles. Keep out of reach of children. Do not mix with other chemicals. For further safety information, consult the Safety Data Sheet (sds) Removes sludge, limescale and corrosion debris Non-acidic (pH neutral), non-toxic & non-foaming
Inhibitor-friendly: Designed to work in conjunction with Fernox Protector F1, Fernox F8 Cleaner ensures your central heating system remains clean and efficient while also benefiting from long-term protection.
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9.3
Superb
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9.3
Superb
Kudos-Trading
Kudos-Trading - Fernox F8 Super Strength Cleaner Boiler Central Heating System Sludge Remover Radiator Protector Inhibitor 500ml Boiler Protection Cleaner
Check Price
Show More
Why we love it
Restores system efficiency rapidly.
Easy for DIY use.
Cost-effective concentrated solution.
Main Highlights
New, advanced and improved formula, super strength, rapid, powerful central heating cleaner for heavily contaminated, dirty systems. Strong, citric acid cleaner to restore efficiency; delivers rapid results.
Easy to use and apply: Fernox F8 Cleaner can be added to the system via a radiator, filling loop, or a Fernox Tf1 filter, making it simple for both professionals and DIY enthusiasts to use.
Non-foaming, faster to flush from system, easy to use; system can operate normally during the cleaning process. It accelerates all cleaning processes; powerflush, manual and magnetic flush. Removes dirt, limescale and other installation and corrosion debris, compatible with all metals and materials, including aluminium.
Concentrated solution for cost-effective treatment: One 500ml bottle of Fernox F8 Cleaner is sufficient to treat an average-sized domestic central heating system, offering a cost-effective solution to maintain system efficiency.
Eliminates radiator cold spots and system noise, treating up to 130L One bottle treats up to 130 litres, 16 radiators and 250 sqm of underfloor heating which covers 97% of Uk homes
Citrate-based cleaner for use in heavily contaminated systems in accordance with bs 7593:2019, Fast-acting; accelerates all cleaning processes including powerflushing, manual and magnetic flushes
Compatible with all metals and materials: Safe to use with any central heating system, Fernox F8 Cleaner is compatible with all metals, including aluminum, and a wide range of materials such as plastics and rubber.
Rapid results: With a fast-acting formula, Fernox F8 Cleaner works quickly to deliver noticeable improvements in system performance, usually within as little as one hour of circulation.
Power Cleaner F8 is supplied in 500 ml bottles. Keep out of reach of children. Do not mix with other chemicals. For further safety information, consult the Safety Data Sheet (sds) Removes sludge, limescale and corrosion debris Non-acidic (pH neutral), non-toxic & non-foaming
Inhibitor-friendly: Designed to work in conjunction with Fernox Protector F1, Fernox F8 Cleaner ensures your central heating system remains clean and efficient while also benefiting from long-term protection.
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5
Fernox 56599 F1 500 ml Central Heating Protector
Fernox
40% Off
Why we love it
Protects against corrosion effectively.
Achieves significant gas savings.
Prevents radiator cold spots.
Main Highlights
Protects Against Corrosion & Scale
When Used with F3 Cleaner Can Achieve 15% Gas Savings
Stops Frequent Venting of Radiators
Prevents Sticking Pumps
Prevents Radiator Cold Spots
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9.1
Superb
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9.1
Superb
Fernox
Fernox 56599 F1 500 ml Central Heating Protector
40% Off
Check Price
Show More
Why we love it
Protects against corrosion effectively.
Achieves significant gas savings.
Prevents radiator cold spots.
Main Highlights
Protects Against Corrosion & Scale
When Used with F3 Cleaner Can Achieve 15% Gas Savings
Stops Frequent Venting of Radiators
Prevents Sticking Pumps
Prevents Radiator Cold Spots
Show More
6
Sentinel - X100 Inhibitor 1L, Market Leading Heavy Duty Central Heating Inhibitor, Protection Against Corrosion and limescale, ensures Maximum Heating Efficiency and extends System Life, Clear (88000)
Sentinel
Why we love it
Extends system's lifespan efficiently.
Protects against limescale, corrosion.
Recommended by boiler manufacturers.
Main Highlights
The industry standard inhibitor, providing protection for clean central heating systems against limescale and corrosion; recommended by all major boiler manufacturers
Heavy duty inhibitor which protects against limescale and corrosion
Sentinel X100 Inhibitor will extend the life of the system, ensuring maximum efficiency and minimising fuel usage
Ensures optimum system efficiency
pH neutral formulation
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8.9
Excellent
Check Price
8.9
Excellent
Sentinel
Sentinel - X100 Inhibitor 1L, Market Leading Heavy Duty Central Heating Inhibitor, Protection Against Corrosion and limescale, ensures Maximum Heating Efficiency and extends System Life, Clear (88000)
Check Price
Show More
Why we love it
Extends system's lifespan efficiently.
Protects against limescale, corrosion.
Recommended by boiler manufacturers.
Main Highlights
The industry standard inhibitor, providing protection for clean central heating systems against limescale and corrosion; recommended by all major boiler manufacturers
Heavy duty inhibitor which protects against limescale and corrosion
Sentinel X100 Inhibitor will extend the life of the system, ensuring maximum efficiency and minimising fuel usage
Ensures optimum system efficiency
pH neutral formulation
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7
QuickFill - SEL9260: Central Heating Dosing Tool - Add Chemicals Like Fernox Central Heating Inhibitor, Sludge Remover, Leak Sealer & Sentinel X100 to Your Central Heating System
SPI
Why we love it
Effortless and accurate dosing.
Quick chemical introduction.
Compatible with radiator tappings.
Main Highlights
Quick and easy dosing of chemicals into central heating systems
Gravity-fed dosing method for effortless and accurate chemical introduction
Suitable for use with inhibitors, sludge removers or anti-freeze
Compatibility: 1/2" BSP radiator tappings
Dose a System with up to 1 Litre of Inhibitor, Antifreeze or sludge remover in under 17 Seconds
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8.8
Excellent
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8.8
Excellent
SPI
QuickFill - SEL9260: Central Heating Dosing Tool - Add Chemicals Like Fernox Central Heating Inhibitor, Sludge Remover, Leak Sealer & Sentinel X100 to Your Central Heating System
Check Price
Show More
Why we love it
Effortless and accurate dosing.
Quick chemical introduction.
Compatible with radiator tappings.
Main Highlights
Quick and easy dosing of chemicals into central heating systems
Gravity-fed dosing method for effortless and accurate chemical introduction
Suitable for use with inhibitors, sludge removers or anti-freeze
Compatibility: 1/2" BSP radiator tappings
Dose a System with up to 1 Litre of Inhibitor, Antifreeze or sludge remover in under 17 Seconds
Show More
8
ColumPRO Central Heating Dosing Tool, Designed for Adding Rust Inhibitors, Sludge Cleaner, Antifreeze Fluid & Sentinel x100 Inhibitor
ColumPRO
Why we love it
Fast, efficient heating system.
Optimized flow and resistance.
Durable, corrosion-resistant design.
Main Highlights
Fast Dosing — Complete a Full Heating System in Around 30 Seconds for Maximum Efficiency
Advanced Multi-Stage Design — Optimized to Boost Flow Rate, Reduce Resistance, and Accelerate Fluid Injection
Durable Corrosion-Resistant Build — Safely Handles Rust Inhibitors, Sludge Cleaners, Antifreeze, and Sentinel X100
Universal BSP Compatibility — Fits the Vast Majority of Radiators for Smooth, Hassle-Free Chemical Dosing
Clean, No-Spill Operation — Designed for Controlled Injection Without Mess, Making Maintenance Significantly Easier
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8.7
Excellent
Check Price
8.7
Excellent
ColumPRO
ColumPRO Central Heating Dosing Tool, Designed for Adding Rust Inhibitors, Sludge Cleaner, Antifreeze Fluid & Sentinel x100 Inhibitor
Check Price
Show More
Why we love it
Fast, efficient heating system.
Optimized flow and resistance.
Durable, corrosion-resistant design.
Main Highlights
Fast Dosing — Complete a Full Heating System in Around 30 Seconds for Maximum Efficiency
Advanced Multi-Stage Design — Optimized to Boost Flow Rate, Reduce Resistance, and Accelerate Fluid Injection
Durable Corrosion-Resistant Build — Safely Handles Rust Inhibitors, Sludge Cleaners, Antifreeze, and Sentinel X100
Universal BSP Compatibility — Fits the Vast Majority of Radiators for Smooth, Hassle-Free Chemical Dosing
Clean, No-Spill Operation — Designed for Controlled Injection Without Mess, Making Maintenance Significantly Easier
Show More
9
DB 5300 Central Heating System Freeze & Corrosion Protection – Long Lasting Antifreeze & Corrosion Inhibitor for Boilers, Radiators & Heating Systems – Professional Grade Protection 1 Litre
Chemiphase
Why we love it
Complete protection for heating systems.
Prevents costly pipe damage.
Trusted by heating professionals.
Main Highlights
Complete Heating System Protection – DB 5300 provides advanced freeze and corrosion protection for boilers, radiators, and pipework, ensuring your central heating runs efficiently all year round.
Prevents Costly Damage – Protects against frozen pipes, rust, and scale build-up, extending the lifespan of your entire heating system and helping to avoid expensive repairs.
Professional Strength Formula – Trusted by heating engineers, this high-performance antifreeze and corrosion inhibitor delivers long-lasting protection even in harsh winter conditions.
Safe & Compatible – Suitable for use with all types of central heating systems, including mixed metal radiators, aluminium components, and modern condensing boilers.
Easy to Use – Simply add to the central heating system water for instant protection. Clear dosage instructions included for hassle-free application.
Show More
8.7
Excellent
Check Price
8.7
Excellent
Chemiphase
DB 5300 Central Heating System Freeze & Corrosion Protection – Long Lasting Antifreeze & Corrosion Inhibitor for Boilers, Radiators & Heating Systems – Professional Grade Protection 1 Litre
Check Price
Show More
Why we love it
Complete protection for heating systems.
Prevents costly pipe damage.
Trusted by heating professionals.
Main Highlights
Complete Heating System Protection – DB 5300 provides advanced freeze and corrosion protection for boilers, radiators, and pipework, ensuring your central heating runs efficiently all year round.
Prevents Costly Damage – Protects against frozen pipes, rust, and scale build-up, extending the lifespan of your entire heating system and helping to avoid expensive repairs.
Professional Strength Formula – Trusted by heating engineers, this high-performance antifreeze and corrosion inhibitor delivers long-lasting protection even in harsh winter conditions.
Safe & Compatible – Suitable for use with all types of central heating systems, including mixed metal radiators, aluminium components, and modern condensing boilers.
Easy to Use – Simply add to the central heating system water for instant protection. Clear dosage instructions included for hassle-free application.
Show More
10
Prozwee Transparent Central Heating Dosing Tool,Radiator Dosing Funnel - for Adding Fernox Central Heating inhibitors, Sludge removers, Leak sealants, and Sentinel X100 Chemicals
Prozwee
Why we love it
Transparent design for easy monitoring.
User-friendly assembly for convenience.
Universal connector fits all radiators.
Main Highlights
Transparent Design --Our filling tool is made of transparent high-quality ABS, making it easy to observe and monitor the progress of adding various chemicals at all times.
Easy to Use --The radiator dosing tool includes three accessories, namely a funnel, a bent pipe, and a joint, which can be easily assembled and installed in place. Utilizing gravity injection method to achieve easy and precise chemical injection without the need for manual operation.
Strong Universality --Our radiator dosing tool uses a 1/2 "BSP universal connector, which can adapt to almost all radiator interfaces, and the connector is leak free and stain free, making it easy to add chemicals.
Widely used --Suitable for adding inhibitors, sludge removers or antifreeze, such as central heating inhibitors, Sentinel leak inhibitors, Fernox or other chemical agents.
What you get --A set of dosing tools (funnel, elbow, and funnel connector).Attention: It is recommended to install the funnel joint first, then the L-shaped elbow, and finally the funnel when using it, to ensure that the funnel can be perpendicular to the ground.
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8.7
Excellent
Check Price
8.7
Excellent
Prozwee
Prozwee Transparent Central Heating Dosing Tool,Radiator Dosing Funnel - for Adding Fernox Central Heating inhibitors, Sludge removers, Leak sealants, and Sentinel X100 Chemicals
Check Price
Show More
Why we love it
Transparent design for easy monitoring.
User-friendly assembly for convenience.
Universal connector fits all radiators.
Main Highlights
Transparent Design --Our filling tool is made of transparent high-quality ABS, making it easy to observe and monitor the progress of adding various chemicals at all times.
Easy to Use --The radiator dosing tool includes three accessories, namely a funnel, a bent pipe, and a joint, which can be easily assembled and installed in place. Utilizing gravity injection method to achieve easy and precise chemical injection without the need for manual operation.
Strong Universality --Our radiator dosing tool uses a 1/2 "BSP universal connector, which can adapt to almost all radiator interfaces, and the connector is leak free and stain free, making it easy to add chemicals.
Widely used --Suitable for adding inhibitors, sludge removers or antifreeze, such as central heating inhibitors, Sentinel leak inhibitors, Fernox or other chemical agents.
What you get --A set of dosing tools (funnel, elbow, and funnel connector).Attention: It is recommended to install the funnel joint first, then the L-shaped elbow, and finally the funnel when using it, to ensure that the funnel can be perpendicular to the ground.
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