{"product_id":"calmag-calcombi-mini-2-in-1-magnetic-electrolytic-scale-inhibitor-c-w-15mm-22mm-fittings","title":"Calmag CalCombi Mini 2-in-1 Magnetic \u0026 Electrolytic Scale Inhibitor c\/w 15mm \u0026 22mm Fittings","description":"\u003cdiv style=\"font-size:16px; max-width:900px; font-family:Arial, Helvetica, sans-serif; color:#222; \"\u003e\n\u003cp style=\"margin:0 0 14px 0; line-height:1.6; color:#222;\"\u003eThe \u003cb\u003eCalmag CalCombi Mini (SI-CALCOMBI-MINI)\u003c\/b\u003e is a space-saving, dual-purpose in-line scale inhibitor that combines \u003cb\u003emagnetic and electrolytic\u003c\/b\u003e scale prevention technology in a single 105mm push-fit unit. It can be fitted to a central heating system to help prevent corrosion, or to a cold water main to prevent limescale forming, and is supplied complete with \u003cb\u003e22mm push-fit fittings and 15mm push-fit stem adaptors\u003c\/b\u003e, making one unit suitable for both pipe sizes.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 14px 0; line-height:1.6; color:#222;\"\u003eInside the nickel-plated copper body, a \u003cb\u003emagnetic bar\u003c\/b\u003e induces a single polarity into the water so that calcium and magnesium particles repel one another rather than crystallising into hard scale, while a set of \u003cb\u003ezinc plates\u003c\/b\u003e reinforce this effect electrolytically and gradually release zinc into the supply to combat corrosion from dissolved oxygen. The unit carries a \u003cb\u003elifetime guarantee\u003c\/b\u003e and requires no power, chemicals or ongoing maintenance.\u003c\/p\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; margin:18px 0;\"\u003e\n        \u003cdiv style=\"flex:1; min-width:120px; background:#008377CF; color:#ffffff; border-radius:8px; padding:14px 10px; text-align:center; margin:4px;\"\u003e\n            \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e105mm\u003c\/div\u003e\n            \u003cdiv style=\"font-size:12px; font-weight:400; margin-top:4px; opacity:0.92;\"\u003eMini Length\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1; min-width:120px; background:#008377CF; color:#ffffff; border-radius:8px; padding:14px 10px; text-align:center; margin:4px;\"\u003e\n            \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e32mm\u003c\/div\u003e\n            \u003cdiv style=\"font-size:12px; font-weight:400; margin-top:4px; opacity:0.92;\"\u003eDiameter\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1; min-width:120px; background:#008377CF; color:#ffffff; border-radius:8px; padding:14px 10px; text-align:center; margin:4px;\"\u003e\n            \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e12 Bar\u003c\/div\u003e\n            \u003cdiv style=\"font-size:12px; font-weight:400; margin-top:4px; opacity:0.92;\"\u003eMax. Working Pressure\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1; min-width:120px; background:#008377CF; color:#ffffff; border-radius:8px; padding:14px 10px; text-align:center; margin:4px;\"\u003e\n            \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e20 Bar\u003c\/div\u003e\n            \u003cdiv style=\"font-size:12px; font-weight:400; margin-top:4px; opacity:0.92;\"\u003ePressure Tested To\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1; min-width:120px; background:#008377CF; color:#ffffff; border-radius:8px; padding:14px 10px; text-align:center; margin:4px;\"\u003e\n            \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e70°C\u003c\/div\u003e\n            \u003cdiv style=\"font-size:12px; font-weight:400; margin-top:4px; opacity:0.92;\"\u003eMax. Temperature\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1; min-width:120px; background:#008377CF; color:#ffffff; border-radius:8px; padding:14px 10px; text-align:center; margin:4px;\"\u003e\n            \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eLifetime\u003c\/div\u003e\n            \u003cdiv style=\"font-size:12px; font-weight:400; margin-top:4px; opacity:0.92;\"\u003eGuarantee\u003c\/div\u003e\n        \u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv style=\"border-left:4px solid #008377CF; background:#E6F5F3; color:#00524A; padding:12px 16px; border-radius:4px; margin:16px 0; line-height:1.55;\"\u003e\n        \u003cdiv style=\"font-weight:700; margin-bottom:4px;\"\u003eTwo Technologies, One Unit\u003c\/div\u003e\n        \u003cdiv\u003eThe CalCombi Mini combines a \u003cb\u003emagnetic bar\u003c\/b\u003e and \u003cb\u003ezinc electrolytic plates\u003c\/b\u003e in a single housing — giving both scale-crystal disruption and corrosion protection from one compact, maintenance-free fitting.\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"border-left:4px solid #B8860B; background:#FFF6E0; color:#6B4E00; padding:12px 16px; border-radius:4px; margin:16px 0; line-height:1.55;\"\u003e\n        \u003cdiv style=\"font-weight:700; margin-bottom:4px;\"\u003eInstallation Requirements\u003c\/div\u003e\n        \u003cdiv\u003eAn \u003cb\u003eearth bonding wire must be fitted\u003c\/b\u003e as part of installation. The unit should be installed \u003cb\u003eno less than 1 metre\u003c\/b\u003e from the appliance being protected, and secured with brackets either side to limit pipework movement. Collet clips (supplied) should be fitted after installation as added security against pipe disconnection.\u003c\/div\u003e\n    \u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; margin:10px 0;\"\u003e\n        \u003cdiv style=\"flex:1 1 260px; background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:14px 16px; margin:6px;\"\u003e\n            \u003cdiv style=\"font-weight:700; color:#008377CF; border-bottom:2px solid #008377CF; padding-bottom:4px; margin-bottom:8px; display:inline-block;\"\u003eCombined Magnetic \u0026amp; Electrolytic Action\u003c\/div\u003e\n            \u003cdiv style=\"line-height:1.55; color:#222;\"\u003eA \u003cb\u003emagnetic bar\u003c\/b\u003e induces single polarity into dissolved calcium and magnesium ions so they repel rather than crystallise, while \u003cb\u003ezinc plates\u003c\/b\u003e reinforce the same effect electrolytically as water passes over the inner copper body.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:14px 16px; margin:6px;\"\u003e\n            \u003cdiv style=\"font-weight:700; color:#008377CF; border-bottom:2px solid #008377CF; padding-bottom:4px; margin-bottom:8px; display:inline-block;\"\u003eCorrosion Protection\u003c\/div\u003e\n            \u003cdiv style=\"line-height:1.55; color:#222;\"\u003eZinc plates gradually disperse small particles of zinc into the water supply, helping to \u003cb\u003ecombat dissolved oxygen\u003c\/b\u003e and reduce corrosion within the system — making the unit suitable for both hot and cold water applications.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:14px 16px; margin:6px;\"\u003e\n            \u003cdiv style=\"font-weight:700; color:#008377CF; border-bottom:2px solid #008377CF; padding-bottom:4px; margin-bottom:8px; display:inline-block;\"\u003eSpace-Saving Mini Format\u003c\/div\u003e\n            \u003cdiv style=\"line-height:1.55; color:#222;\"\u003eAt just \u003cb\u003e105mm\u003c\/b\u003e long, the Mini format suits installations where space around pipework is restricted, while retaining the same internal technology as the full-size 160mm CalCombi.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:14px 16px; margin:6px;\"\u003e\n            \u003cdiv style=\"font-weight:700; color:#008377CF; border-bottom:2px solid #008377CF; padding-bottom:4px; margin-bottom:8px; display:inline-block;\"\u003eSpeedfit Push-Fit Installation\u003c\/div\u003e\n            \u003cdiv style=\"line-height:1.55; color:#222;\"\u003eSupplied with \u003cb\u003e22mm push-fit fittings and 15mm stem adaptors\u003c\/b\u003e for fast, tool-light installation without soldering, suited to both new-build and retrofit work.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:14px 16px; margin:6px;\"\u003e\n            \u003cdiv style=\"font-weight:700; color:#008377CF; border-bottom:2px solid #008377CF; padding-bottom:4px; margin-bottom:8px; display:inline-block;\"\u003eOne Model, Whole-House Protection\u003c\/div\u003e\n            \u003cdiv style=\"line-height:1.55; color:#222;\"\u003eA single CalCombi Mini suits \u003cb\u003e15mm, 22mm and 28mm pipework\u003c\/b\u003e via its adaptor kit, giving whole-house scale and corrosion protection from one product line.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; background:#F7FBFA; border:1px solid #E0EDEB; border-radius:8px; padding:14px 16px; margin:6px;\"\u003e\n            \u003cdiv style=\"font-weight:700; color:#008377CF; border-bottom:2px solid #008377CF; padding-bottom:4px; margin-bottom:8px; display:inline-block;\"\u003eNo Power, No Chemicals, No Maintenance\u003c\/div\u003e\n            \u003cdiv style=\"line-height:1.55; color:#222;\"\u003eThe unit is entirely passive — no electrical supply, batteries, salt or chemical dosing are required, and it carries a \u003cb\u003elifetime guarantee\u003c\/b\u003e against manufacturing defects.\u003c\/div\u003e\n        \u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv style=\"font-size:18px; font-weight:700; color:#008377CF; border-bottom:2px solid #008377CF; padding-bottom:6px; margin:28px 0 14px 0;\"\u003eTechnical Specification\u003c\/div\u003e\n    \u003ctable style=\"width:100%; border-collapse:collapse; margin:0 0 10px 0;\"\u003e\n        \u003ctbody\u003e\n        \u003ctr style=\"background:#F7FBFA;\"\u003e\n            \u003ctd style=\"padding:9px 14px; border-bottom:1px solid #E0EDEB; font-weight:600; color:#333; width:45%;\"\u003eProduct Code\u003c\/td\u003e\n            \u003ctd style=\"padding:9px 14px; border-bottom:1px solid #E0EDEB; color:#222;\"\u003eSI-CALCOMBI-MINI\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background:#ffffff;\"\u003e\n            \u003ctd style=\"padding:9px 14px; border-bottom:1px solid #E0EDEB; font-weight:600; color:#333; width:45%;\"\u003eLength (this Mini variant)\u003c\/td\u003e\n            \u003ctd style=\"padding:9px 14px; border-bottom:1px solid #E0EDEB; color:#222;\"\u003e105mm\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background:#F7FBFA;\"\u003e\n            \u003ctd style=\"padding:9px 14px; border-bottom:1px solid #E0EDEB; font-weight:600; color:#333; width:45%;\"\u003eLength (standard variant, for reference)\u003c\/td\u003e\n            \u003ctd style=\"padding:9px 14px; border-bottom:1px solid #E0EDEB; color:#222;\"\u003e160mm\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background:#ffffff;\"\u003e\n            \u003ctd style=\"padding:9px 14px; border-bottom:1px solid #E0EDEB; font-weight:600; color:#333; width:45%;\"\u003eDiameter\u003c\/td\u003e\n            \u003ctd style=\"padding:9px 14px; border-bottom:1px solid #E0EDEB; color:#222;\"\u003e32mm\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background:#F7FBFA;\"\u003e\n            \u003ctd style=\"padding:9px 14px; border-bottom:1px solid #E0EDEB; font-weight:600; color:#333; width:45%;\"\u003eMaterial \/ Finish\u003c\/td\u003e\n            \u003ctd style=\"padding:9px 14px; border-bottom:1px solid #E0EDEB; color:#222;\"\u003eNickel-plated copper\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background:#ffffff;\"\u003e\n            \u003ctd style=\"padding:9px 14px; border-bottom:1px solid #E0EDEB; font-weight:600; color:#333; width:45%;\"\u003eConnections\u003c\/td\u003e\n            \u003ctd style=\"padding:9px 14px; border-bottom:1px solid #E0EDEB; color:#222;\"\u003e22mm push-fit, with 15mm push-fit stem adaptors supplied\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background:#F7FBFA;\"\u003e\n            \u003ctd style=\"padding:9px 14px; border-bottom:1px solid #E0EDEB; font-weight:600; color:#333; width:45%;\"\u003eMaximum Working Pressure\u003c\/td\u003e\n            \u003ctd style=\"padding:9px 14px; border-bottom:1px solid #E0EDEB; color:#222;\"\u003e12 bar (168 psi)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background:#ffffff;\"\u003e\n            \u003ctd style=\"padding:9px 14px; border-bottom:1px solid #E0EDEB; font-weight:600; color:#333; width:45%;\"\u003ePressure Tested To\u003c\/td\u003e\n            \u003ctd style=\"padding:9px 14px; border-bottom:1px solid #E0EDEB; color:#222;\"\u003e20 bar (280 psi)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background:#F7FBFA;\"\u003e\n            \u003ctd style=\"padding:9px 14px; border-bottom:1px solid #E0EDEB; font-weight:600; color:#333; width:45%;\"\u003eMaximum Temperature\u003c\/td\u003e\n            \u003ctd style=\"padding:9px 14px; border-bottom:1px solid #E0EDEB; color:#222;\"\u003e70°C\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background:#ffffff;\"\u003e\n            \u003ctd style=\"padding:9px 14px; border-bottom:1px solid #E0EDEB; font-weight:600; color:#333; width:45%;\"\u003eMaximum Flow Rate\u003c\/td\u003e\n            \u003ctd style=\"padding:9px 14px; border-bottom:1px solid #E0EDEB; color:#222;\"\u003e1.08 l\/sec (14 gpm)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background:#F7FBFA;\"\u003e\n            \u003ctd style=\"padding:9px 14px; border-bottom:1px solid #E0EDEB; font-weight:600; color:#333; width:45%;\"\u003eGuarantee\u003c\/td\u003e\n            \u003ctd style=\"padding:9px 14px; border-bottom:1px solid #E0EDEB; color:#222;\"\u003eLifetime guarantee against manufacturing defects\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background:#ffffff;\"\u003e\n            \u003ctd style=\"padding:9px 14px; border-bottom:1px solid #E0EDEB; font-weight:600; color:#333; width:45%;\"\u003eApprovals\u003c\/td\u003e\n            \u003ctd style=\"padding:9px 14px; border-bottom:1px solid #E0EDEB; color:#222;\"\u003eWRAS approved\u003c\/td\u003e\n        \u003c\/tr\u003e\n\u003c\/tbody\u003e\n    \u003c\/table\u003e\n\u003cdiv style=\"font-size:18px; font-weight:700; color:#008377CF; border-bottom:2px solid #008377CF; padding-bottom:6px; margin:28px 0 14px 0;\"\u003eTypical Applications\u003c\/div\u003e\n\u003cul style=\"padding-left:20px; margin:10px 0;\"\u003e\n\u003cli style=\"margin-bottom:6px; line-height:1.55;\"\u003eCombination boilers\u003c\/li\u003e\n\u003cli style=\"margin-bottom:6px; line-height:1.55;\"\u003eShowers and water heaters\u003c\/li\u003e\n\u003cli style=\"margin-bottom:6px; line-height:1.55;\"\u003eImmersion heaters and thermal store boilers\u003c\/li\u003e\n\u003cli style=\"margin-bottom:6px; line-height:1.55;\"\u003eHot water cylinders\u003c\/li\u003e\n\u003cli style=\"margin-bottom:6px; line-height:1.55;\"\u003eWashing machines and dishwashers\u003c\/li\u003e\n\u003cli style=\"margin-bottom:6px; line-height:1.55;\"\u003eCentral heating systems (as a limescale or corrosion inhibitor)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"font-size:18px; font-weight:700; color:#008377CF; border-bottom:2px solid #008377CF; padding-bottom:6px; margin:28px 0 14px 0;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n        \u003cdetails style=\"border:1px solid #E0EDEB; border-radius:6px; margin-bottom:8px; overflow:hidden;\"\u003e\n            \u003csummary style=\"background:#008377CF; color:#fff; font-weight:600; padding:10px 16px; cursor:pointer; list-style:none;\"\u003eWhat is the difference between the CalCombi and the CalCombi Mini?\u003c\/summary\u003e\n            \u003cdiv style=\"padding:12px 16px; line-height:1.6; color:#222; background:#F7FBFA;\"\u003eBoth share the same internal magnetic and electrolytic technology, connections and pressure\/temperature ratings. The difference is \u003cb\u003ephysical length\u003c\/b\u003e: the standard CalCombi is 160mm, while the \u003cb\u003eMini (this product) is 105mm\u003c\/b\u003e for use where space around the pipework is limited.\u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails style=\"border:1px solid #E0EDEB; border-radius:6px; margin-bottom:8px; overflow:hidden;\"\u003e\n            \u003csummary style=\"background:#008377CF; color:#fff; font-weight:600; padding:10px 16px; cursor:pointer; list-style:none;\"\u003eDoes it soften the water or remove minerals?\u003c\/summary\u003e\n            \u003cdiv style=\"padding:12px 16px; line-height:1.6; color:#222; background:#F7FBFA;\"\u003eNo. Scale inhibitors do not change water hardness. The CalCombi Mini \u003cb\u003ereduces the ability of dissolved minerals to form hard scale\u003c\/b\u003e as heated water passes through the system, rather than removing them from the water.\u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails style=\"border:1px solid #E0EDEB; border-radius:6px; margin-bottom:8px; overflow:hidden;\"\u003e\n            \u003csummary style=\"background:#008377CF; color:#fff; font-weight:600; padding:10px 16px; cursor:pointer; list-style:none;\"\u003eCan it be fitted to both hot and cold water pipework?\u003c\/summary\u003e\n            \u003cdiv style=\"padding:12px 16px; line-height:1.6; color:#222; background:#F7FBFA;\"\u003eYes. It is a dual-purpose unit that can be fitted to a \u003cb\u003ecentral heating system\u003c\/b\u003e to help prevent corrosion, or to a \u003cb\u003ecold water main\u003c\/b\u003e to prevent limescale forming.\u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails style=\"border:1px solid #E0EDEB; border-radius:6px; margin-bottom:8px; overflow:hidden;\"\u003e\n            \u003csummary style=\"background:#008377CF; color:#fff; font-weight:600; padding:10px 16px; cursor:pointer; list-style:none;\"\u003eWhat fittings are included?\u003c\/summary\u003e\n            \u003cdiv style=\"padding:12px 16px; line-height:1.6; color:#222; background:#F7FBFA;\"\u003eThe unit is supplied with \u003cb\u003efixed 22mm push-fit connections\u003c\/b\u003e and \u003cb\u003etwo 15mm push-fit stem adaptors\u003c\/b\u003e, so one product covers both 15mm and 22mm pipe runs.\u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails style=\"border:1px solid #E0EDEB; border-radius:6px; margin-bottom:8px; overflow:hidden;\"\u003e\n            \u003csummary style=\"background:#008377CF; color:#fff; font-weight:600; padding:10px 16px; cursor:pointer; list-style:none;\"\u003eIs an earth bond required?\u003c\/summary\u003e\n            \u003cdiv style=\"padding:12px 16px; line-height:1.6; color:#222; background:#F7FBFA;\"\u003eYes — an \u003cb\u003eearth bonding wire must be fitted\u003c\/b\u003e as part of a compliant installation.\u003c\/div\u003e\n        \u003c\/details\u003e\n        \u003cdetails style=\"border:1px solid #E0EDEB; border-radius:6px; margin-bottom:8px; overflow:hidden;\"\u003e\n            \u003csummary style=\"background:#008377CF; color:#fff; font-weight:600; padding:10px 16px; cursor:pointer; list-style:none;\"\u003eWill it stop scale forming in a kettle?\u003c\/summary\u003e\n            \u003cdiv style=\"padding:12px 16px; line-height:1.6; color:#222; background:#F7FBFA;\"\u003eNot entirely. The CalCombi relies on \u003cb\u003ewater flow\u003c\/b\u003e through the unit to prevent scale formation; since there is no flow inside a kettle, soft scale can still form there. Any scale that does form in a kettle after installation will be soft and easy to brush away.\u003c\/div\u003e\n        \u003c\/details\u003e\n\u003c\/div\u003e","brand":"Calmag","offers":[{"title":"Default Title","offer_id":65131981242717,"sku":"SI-CALCOMBI-MINI","price":49.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/CalmagCalCombiMini2-in-1Magnetic_ElectrolyticScaleInhibitor.jpg?v=1783014139","url":"https:\/\/qualityheating.co.uk\/products\/calmag-calcombi-mini-2-in-1-magnetic-electrolytic-scale-inhibitor-c-w-15mm-22mm-fittings","provider":"AIZO Quality Heating","version":"1.0","type":"link"}