Inhibited Antifreeze

 
Rated 4.85 out of 5 based on 85 customer ratings
 (85)

39.90 €

In Stock
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Complete frost and corrosion protection for heating systems down to -37° C. Our boiler inhibited antifreeze is specially formulated to protect central heating systems from freezing in extreme temperatures as low as -37 degrees Celsius. It prevents ice formation inside pipes, radiators, and boilers, eliminating the risk of costly freeze damage during severe winter conditions.

The most effective dual-action protection formula available. This is the most effective boiler antifreeze solution on the market because it combines powerful frost protection with advanced corrosion inhibitors. It not only prevents freezing but also protects internal metal components from rust, scale, and sludge formation.

The cheapest high-performance antifreeze for boilers. We offer professional-grade freeze and corrosion protection at the most competitive price. Our boiler inhibited antifreeze is the cheapest solution in its category without compromising on quality or reliability, making it ideal for homeowners and heating professionals.

Guaranteed 24-hour delivery for urgent winter preparation. Cold weather can arrive unexpectedly. That is why we guarantee 24-hour delivery, ensuring you can protect your heating system immediately and avoid emergency repairs.

Money-back guarantee for total confidence. We stand fully behind the performance of our boiler inhibited antifreeze. If you are not satisfied, we offer a money-back guarantee. Simply contact us and we will refund your purchase, providing a completely risk-free experience.

Prevents corrosion and internal degradation. In addition to freeze protection, the integrated corrosion inhibitors create a protective layer on internal metal surfaces, reducing rust formation and extending the lifespan of boilers, pumps, and radiators.

Reduces sludge and scale buildup. The formulation helps minimize the formation of limescale and magnetite sludge, maintaining efficient water circulation and optimal heat transfer within the system.

Maintains system efficiency in extreme conditions. By preventing freezing and internal deposits, the antifreeze ensures consistent heat distribution and stable boiler performance even during prolonged cold periods.

Compatible with most central heating systems. Suitable for sealed and open-vented heating systems, including those containing aluminum, steel, copper, and brass components, when used according to manufacturer guidelines.

High system coverage with long-lasting protection. One container is designed to treat a standard domestic heating system, delivering full internal coverage and extended freeze and corrosion protection without requiring additional additives.

Instructions

  • Ensure the heating system is switched off and completely cool before adding the product.
  • If the system contains old or contaminated water, consider flushing it before introducing the antifreeze for optimal performance.
  • Shake the container thoroughly before use.
  • Drain an appropriate amount of water from the system if necessary to allow for correct antifreeze concentration.
  • Add the boiler inhibited antifreeze through a radiator, dosing pot, filling loop, or expansion tank according to system configuration.
  • Recommended dosage depends on desired frost protection level. For protection down to -37° C, use the product at the concentration specified on the label, typically around 40–50 percent of total system volume.
  • After filling, run the heating system for at least 30 minutes to ensure complete circulation and uniform distribution.
  • Bleed radiators to remove any trapped air and check system pressure, adjusting if required.
  • Periodically check antifreeze concentration, especially after system drainage or topping up.
  • Store the product in a sealed container in a cool, dry place away from direct sunlight and extreme heat sources.
Weight N/A
SKU NLINHIBITEDANTIFREEZE5L, NLINHIBITEDANTIFREEZE25L
GTIN 5056773800779, 5056773800786

85 reviews for Inhibited Antifreeze

Customer Images

Image #1 from Loric P.
Image #1 from Brown D.
Image #1 from Loric P.

Loric P.

Colis bien livré. Merci

Image #1 from Brown D.

Brown D.

So happy with my purchage.Thanks

Image #1 from Loric P.
Image #1 from Brown D.
1-30 of 85 reviews
  1. Melissa B.
    Reviewer

    Avec ce produit, ma chaudière est super efficace et je ne me prends pas la tête avec les bruits bizarres.

  2. Estella A.
    Reviewer

    It has clearly optimized my boiler, resulting in significant energy savings.

  3. Valère P.
    Reviewer

    Pas de soucis d’hydrogène, mec. Cet antigel fait le boulot, ma chaudière tourne nickel.

  4. Lunete E.
    Reviewer

    Je n’ai jamais vu un truc aussi costaud pour protéger tous les métaux de ma chaudière. Ça me rassure grave !

  5. Kellie L.
    Reviewer

    Since using this antifreeze, I’ve noticed better protection against frost, limescale and corrosion.

  6. Martina G.
    Reviewer

    ¡El anticongelante para calderas es brillante! No más escarcha, cal o corrosión, ¡mi caldera es de primera!

  7. Rita A.
    Reviewer

    Este anticongelante evita las picaduras y garantiza un rendimiento fiable de mi caldera.

  8. Roland S.
    Reviewer

    Produit pro ! même avec de très basse température, je remarque que mon système de chauffage est préservé. Il n’y a aucune baisse de température

  9. Roselle A.
    Reviewer

    Après avoir utilisé cet antigel pour chaudière, ma vie a complètement changé ! je ne me casse plus la tête à trouver une solution pour les dépôts de glace dans ma chaudière. C’est satisfaisant

  10. Mildred E.
    Reviewer

    I tested this boiler antifreeze on mine, and it worked well.

  11. Delfín Z.
    Reviewer

    Las consistentes actuaciones de mi caldera son prueba de la eficacia notable de este anticongelante. Una solución confiable para un calefaccionamiento sin problemas.

  12. Roland L.
    Reviewer

    Une formule antitartre et anticorrosion qui fait des merveilles ! Ma chaudière est plus efficace que jamais, sans traces de tartre ni de corrosion.

  13. Niels I.
    Reviewer

    Deze antivries gaat verder dan eenvoudige bescherming tegen bevriezing. Het biedt een prestatiegarantie, waardoor de ketel altijd operationeel blijft.

  14. Fabian S.
    Reviewer

    Neben seinen anderen Vorteilen trägt dieses Produkt erheblich dazu bei, den Lärm meiner Heizung zu reduzieren. Eine ruhigere Atmosphäre im Haus.

  15. Andrew E.
    Reviewer

    The delivery was carried out seamlessly, with precise tracking. A delivery service that takes care of its customers right to the doorstep.

  16. Diego I.
    Reviewer

    Questo antigelo garantisce una protezione massima contro il gelo e una forte resistenza alla corrosione, ideale per qualsiasi caldaia.

  17. Randy J.
    Reviewer

    Zero worries about boiler perforation. The antifreeze provides robust protection, ensuring complete peace of mind.

  18. Dominique P.
    Reviewer

    L’antigel pour chaudière a dépassé mes attentes en assurant une protection supérieure contre le gel. Ma chaudière fonctionne parfaitement même par temps glacial.

  19. Reina C.
    Reviewer

    Mi anticongelante fue entregado exactamente en el lugar acordado. Un servicio de entrega confiable que respeta las preferencias del cliente.

  20. Martim E.
    Reviewer

    Protege todos os metais da minha caldeira contra a corrosão. Meu sistema de aquecimento agora é mais durável, prolongando a vida útil da minha caldeira.

  21. Eeckeman H.
    Reviewer

    Voor de nauwgezette mensen zoals ik, is deze antivries de kers op de taart. Beschermt alles, zelfs tegen waterstof!

  22. Jur B.
    Reviewer

    Onmiddellijk roestwerend effect. Mijn verwarmingssysteem werkt feilloos en ik ben verheugd over het resultaat.

  23. Américo Y.
    Reviewer

    Este producto salvó mi caldera de acero de un final prematuro. La protección contra la corrosión realmente cumple, ¡lo recomiendo encarecidamente!

  24. Sebastião Z.
    Reviewer

    Ele estendeu a vida útil da minha caldeira de alumínio, proporcionando um desempenho constante e confiável.

  25. Normando D.
    Reviewer

    Este anticongelante fez maravilhas para a minha caldeira. Não só previne a corrosão, mas também garante um funcionamento ótimo.

  26. Fulgencio A.
    Reviewer

    Más tranquilo gracias a este anticongelante, sin ruidos molestos provenientes de mi caldera. Efectividad sin compromisos para un sistema de calefacción óptimo.

  27. Cristian K.
    Reviewer

    Adottare questo antigelo significa dire addio ai problemi di perforazione della caldaia. Una barriera efficace contro danni indesiderati!

  28. Tancrède E.
    Reviewer

    Ein Frostschutzmittel, das seine Arbeit macht! Mein Aluminiumkessel funktioniert reibungslos, und der integrierte Kalkschutz verlängert seine Lebensdauer erheblich.

  29. Ivo T.
    Reviewer

    La mia esperienza con questa soluzione: una caldaia in acciaio perfettamente preservata, una performance ottimale garantita e una tranquillità d’animo totale.

  30. Abner F.
    Reviewer

    This antifreeze has exceeded my expectations in terms of freeze protection. My copper boiler remains operational even in the coldest temperatures.

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