Next working day delivery
Free UFH plan form here
Excellent reviews
Quote builder available
Price match guarantee
Kudos Trading

call us on
0115 694 4454

×
  • Account Page Link
    • Shopping Cart Shopping Cart
      2Shopping Cart
    • Home
    • Underfloor Heating
      • Water Underfloor Heating
        • Manifold Kits With Pump
        • Manifolds
          • Brass / Nickle Manifolds
          • Stainless Steel Manifolds
        • Blending Valves & Pump Stations
        • Pumps
        • Eurocones
        • Manifold Accessories
        • Wet System Kits
      • Electric Underfloor Heating
        • Cable Mats 100W/m²
        • Cable Mats 150W/m²
        • Loose Cable
        • In-Screed Cable
        • Cable Repair Kits
        • Fixing Tape
        • Flexible Conduit
      • UFH Laying Systems & Insulation
        • Castlated Tray
        • Clips & Rails
        • Depron
        • Dual Overlay
        • E-UFH Laying Systems
        • Edging
        • Fixings
        • ROP & Aqualay
        • Spreader Plate
        • Tile Backer Board
        • XPS & Adhesive
      • Pipe
        • PE-RT/AL/PE-RT
        • PE-RT 3-layer
        • PEX/AL/PEX
        • Pre-insulated PEX
        • Conduit
    • Controls
      • Hubs and Wiring Centres
        • Wired Wiring Centres
        • Wireless Wiring Centres
        • Hubs and Internet Gateways
        • Heatmiser Wiring Centres
        • Salus Wiring Centres
        • Reliance Wiring Centres
        • Actuators
      • Thermostats for Water
        • Wired Thermostats
        • Wireless Thermostats
        • Heatmiser Neo Thermostats
        • Heatmiser Slimline Thermostats
        • Heatmiser Touch Screen Thermostats
        • Salus Thermostats
        • Reliance Thermostats
      • Thermostats for Electric
        • Digital Programmable Thermostats
        • Smart Thermostats
        • Touch Screen Thermostats
      • Control Accessories
        • Heatmiser Neo & RF Accessories
        • RF Repeaters & Recievers
        • Sensors
    • Electrical
      • Electric Underfloor Heating
        • Cable Mats 100W/m²
        • Cable Mats 150W/m²
        • Loose Cable
        • In-Screed Cable
        • Cable Repair Kits
      • Electric Heating
        • Mirror Demisters
        • Infrared Heaters
      • Installation Components
        • Fixing Tape
        • Flexible Conduit
    • Plumbing
      • Pipe, Valves & Fittings
        • Pipe
        • Couplers
        • Isolation Valves
        • Plumbing Manifolds
        • Lever Ball Valves
        • Check Valves
        • Pressure Reducing Valves
        • Filters & Strainers
        • Relief Valves & Vents
        • Shock Arrestors / Water Hammer
        • Antifreeze Valves
        • Motorised Valves
        • TRVs
        • Thermostatic Mixing Valves
      • Press Fittings
        • M-Press
          • M-Press Fittings (Water)
          • M-Press Valves (Water)
          • M-Press Tools
        • U-Press
          • U-Press Fittings
          • U-Press Tools
      • Towel Rail & Immersion Heaters Elements
        • Copper Immersion Heaters
        • Incoloy Immersion Heaters
        • Incoloy / Copper Immersion Heaters
        • Titanium Immersion Heaters
        • Immersion Heater Thermostats
        • Towel Rail Elements
      • Compounds Sprays & Smoke Testing
        • Flux
        • Gas Leak Detection
        • Pipe Sealing & Jointing Compound
        • PVC Cement
        • Silicone Grease & Spray
        • Smoke Testing
      • Sanitaryware & Accessories
        • Shower Accessories
        • WC Flush Valves
        • WC Pan Connectors
        • WC Seats
      • Water Treatment
        • Cleaners & Sealers
        • Inhibitors & Protectors
        • Physical Water Conditioners
        • Water Softening
    • Building
      • Cleaners Protectors & Primers
        • Cleaners & Protectors
        • Primers
      • Levelling Compound & Tile Adhesives
        • Levelling Compounds
        • Tile Adhesives
    • Tools & Accessories
      • Plumbing Tools & Accessories
        • Pipe Freezing Kits
        • Pipe Working Tools
        • Press Tools
        • Soldering & Brazing
        • Testing & Commissioing
        • Underfloor Heating Installation
      • Building Tools & Accessories
        • Mixing Tubs
        • Priming
      • Electrical Tools & Accessories
        • Batteries
    • Contact Us
    • UFH Plan
    • Menu Menu
    You are here: Home1 / Shop2 / Water Treatment3 / Cleaners & Sealers4 / Fernox Solar Cleaner | Solar Thermal System Cleaning 500ml
    “Fernox F2 Boiler Noise Silencer | Stop Kettling Fast 500ml” has been added to your basket. View basket
    Fernox Solar Cleaner 500 ml cleaner for solar thermal systems, white bottle with red cap and blue‑yellow‑red label.

    Fernox Solar Cleaner | Solar Thermal System Cleaning 500ml

    £26.64 Inc Vat

    Fernox Solar Cleaner is a specialist formulation designed to remove sludge, debris, and installation residues from solar thermal systems. It restores system efficiency and protects pumps, heat exchangers, and pipework. Ideal for commissioning new systems or cleaning existing installations.

    11 in stock

    SKU: FER-59430 Category: Cleaners & Sealers Brand: Fernox Water Treatment
    • Description
    • Additional information
    • Delivery

    The Fernox Solar Cleaner provides an effective solution for cleaning solar thermal systems during commissioning or routine maintenance. It removes sludge, flux residues, and other contaminants that restrict flow and reduce heat transfer. As a result, systems regain efficiency and operate more reliably.

    Solar thermal systems operate at high temperatures. Therefore, they require a cleaner designed specifically for solar applications rather than standard heating chemicals.

    What Is Fernox Solar Cleaner?

    Solar Cleaner is a specialist chemical cleaner formulated for use in solar thermal circuits. It targets debris that builds up during installation and operation, including flux residues and particulate matter.

    Unlike general-purpose cleaners, Fernox Solar Cleaner works safely within solar system materials. Consequently, it protects components while delivering thorough cleaning performance.

    How Fernox Solar Cleaner Works

    Once added to the solar circuit, Solar Cleaner circulates through the system. It breaks down contaminants and suspends debris in the fluid. Therefore, flushing removes harmful build-up quickly and effectively.

    Because the formulation handles high operating temperatures, it performs reliably during cleaning cycles without degrading.

    Removes Sludge and Installation Debris

    Fernox Solar Cleaner clears sludge, dirt, and residues that reduce system efficiency. As a result, pumps and heat exchangers perform as intended.

    Protects Solar System Components

    The cleaner protects pipework, seals, and metals commonly used in solar systems. Therefore, it supports long-term reliability and reduces wear.

    Suitable for Commissioning and Maintenance

    Installers can use this Cleaner on new systems before adding heat transfer fluid. In addition, it suits existing systems that require performance restoration.

    Next Working Day Delivery: Yes, we hold all our products in stock at our 7000 sq ft Nottingham warehouse and at our 3000 sq ft warehouse in Market Harborough and use DPD for a tracked next-day delivery.

    Collection Available: You can always collect from our Nottingham location and help yourself to a free tea and coffee.

    Fernox Water Treatment

    Additional information

    Weight 0.59 kg

    Delivery

    Delivery costs to UK mainland

    Standard UK Delivery: £6.98 next working day delivery.

    Premium Delivery: before 12pm: £20.28

    Saturday Delivery: £28.62

    Highlands & Channel Isles: variable, please use the delivery calculator on the checkout page.

    For more details see our Delivery information here.

    Related products

    • Fernox Cleaner F3 Express aerosol 400 ml central heating cleaner in a white can with black hose and red‑blue label.
      Fernox Water Treatment

      Fernox F3 Express Cleaner | Fast Heating System Cleaning 400ml

      £29.17 Inc Vat
      Quick View
      Add to basket Add to basket Add to basket Show Details Show Details Show Details
    • Sentinel X400 sludge remover cleaner 1 L bottle for central heating systems, turquoise‑blue container with white handle and red X400 label.
      Sentinel Water Treatment

      Sentinel X400 High Performance Cleaner 1L

      £17.99 Inc Vat
      Quick View
      Add to basket Add to basket Add to basket Show Details Show Details Show Details
    • Fernox LP Sterox 1 L total disinfectant for stored water systems, white bottle with white cap and blue‑orange label.
      Fernox Water Treatment

      Fernox LP Sterox | Legionella Control for Water Systems

      £49.63 Inc Vat
      Quick View
      Add to basket Add to basket Add to basket Show Details Show Details Show Details
    • Fernox Cleaner F3 liquid 265 ml central heating system cleaner in a white bottle with red cap and red‑blue label.
      Fernox Water Treatment

      Fernox F3 Cleaner | Central Heating System Cleaner 265ml

      £11.05 Inc Vat
      Quick View
      Add to basket Add to basket Add to basket Show Details Show Details Show Details

    Why choose Kudos Trading?

    Kudos Trading has been supplying the UK with underfloor heating since 2001.

    As one of the UK’s longest-established specialists, we combine decades of experience with a personal, friendly service from our Nottinghamshire-based team.

    Read more

    Can‘t find what you‘re
    looking for?

    Our friendly expert team are on hand to help. Email us at sales@kudostrading.co.uk, phone us on 0115 9632314 or use our online form!

    Get in touch

    Subscribe to our emails

    Be the first to hear about exclusive offers, useful tips, and the latest products—delivered straight to your inbox.


    You can unsubscribe at any time. To learn how we use your data, please see our privacy and cookie policy.

    Contact Us

    Floor Heating Systems Ltd, Fairway Court, Wigwam Lane, Hucknall, NG15 7TA

    0115 9632314

    sales@kudostrading.co.uk

    Information

    • Get A Quote
    • Returns & Replacements
    • Delivery Information
    • FAQs
    • Manuals & Guides

    Products

    • Water Underfloor Heating
    • Electric Underfloor Heating
    • Controls
    • Pipe
    • Plumbing
    • Building
    • Tools & Accessories

    Legal Policies

    • Delivery Information
    • Terms & Conditions
    • Privacy Policy
    • Cookies Policy

    © 2026 Kudos Trading. Operated by Floor Heating Systems Ltd [Company Reg: 4173185 | VAT: GB 755 3117 37]

    Scroll to top Scroll to top Scroll to top