{"product_id":"thermosphere-low-output-ultimate-decoupling-membrane-heating-cable-57w-m-or-85w-m-in-line-joint","title":"ThermoSphere Low Output Ultimate Decoupling Membrane Heating Cable – 57W\/m² or 85W\/m², In-Line Joint","description":"\u003c!-- SEO Product Name: ThermoSphere Ultimate Low Output Decoupling Membrane Heating Cable – 57W\/m² or 85W\/m², In-Line Joint, IP68, Lifetime Warranty --\u003e\n\u003cdiv style=\"font-size:16px; max-width:900px; margin:0 auto; color:#222; font-family:Arial, Helvetica, sans-serif;\"\u003e\n\u003cp style=\"line-height:1.65; margin:0 0 16px 0; font-size:16px;\"\u003eThe \u003cstrong\u003eThermoSphere Ultimate Low Output\u003c\/strong\u003e is a loose-lay electric underfloor heating cable purpose-built for \u003cstrong\u003ehomes with a restricted electrical load supply\u003c\/strong\u003e or properties that need to manage circuit capacity carefully. It uses the same proven \u003cstrong\u003eTwistedTwin cable construction and in-line joint technology\u003c\/strong\u003e as the standard ThermoSphere Ultimate cable, but delivers a gentler \u003cstrong\u003e57W\/m² or 85W\/m²\u003c\/strong\u003e output instead of the standard 130W\/m² or 195W\/m² range.\u003c\/p\u003e\n\u003cp style=\"line-height:1.65; margin:0 0 16px 0; font-size:16px;\"\u003eThis makes it the natural choice for \u003cstrong\u003ewell-insulated new-build properties\u003c\/strong\u003e, homes running on a limited single-phase supply, or installations designed to run primarily from \u003cstrong\u003eself-generated solar electricity and battery storage\u003c\/strong\u003e, where keeping instantaneous electrical draw low matters as much as keeping the floor warm. Like the standard Ultimate range, it installs into ThermoSphere Membrane or Self-Adhesive Membrane with \u003cstrong\u003eno cutting into the membrane or subfloor\u003c\/strong\u003e required.\u003c\/p\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; margin:20px 0;\"\u003e\n        \u003cdiv style=\"flex:1 1 140px; background:#008377CF; color:#ffffff; border-radius:8px; padding:16px 10px; text-align:center; margin:4px;\"\u003e\n            \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eIP68\u003c\/div\u003e\n            \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.92;\"\u003eProtection Rating\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 140px; background:#008377CF; color:#ffffff; border-radius:8px; padding:16px 10px; text-align:center; margin:4px;\"\u003e\n            \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eIn-Line Joint\u003c\/div\u003e\n            \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.92;\"\u003eNo Cuts Required\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 140px; background:#008377CF; color:#ffffff; border-radius:8px; padding:16px 10px; text-align:center; margin:4px;\"\u003e\n            \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e57W\/m²\u003c\/div\u003e\n            \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.92;\"\u003e3-Stud Output\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 140px; background:#008377CF; color:#ffffff; border-radius:8px; padding:16px 10px; text-align:center; margin:4px;\"\u003e\n            \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e85W\/m²\u003c\/div\u003e\n            \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.92;\"\u003e2-Stud Output\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 140px; background:#008377CF; color:#ffffff; border-radius:8px; padding:16px 10px; text-align:center; margin:4px;\"\u003e\n            \u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e12-200m\u003c\/div\u003e\n            \u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.92;\"\u003eCable Lengths\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 140px; background:#008377CF; color:#ffffff; border-radius:8px; padding:16px 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; margin-top:4px; opacity:0.92;\"\u003eWarranty\u003c\/div\u003e\n        \u003c\/div\u003e\n\u003c\/div\u003e\n    \u003cdiv style=\"background:#E6F4F3; border-left:4px solid #008377CF; border-radius:6px; padding:14px 16px; margin:16px 0;\"\u003e\n        \u003cdiv style=\"font-weight:700; margin-bottom:4px;\"\u003eℹ️ Designed for Restricted Load Supplies\u003c\/div\u003e\n        \u003cdiv style=\"line-height:1.55; font-size:15px;\"\u003eThermoSphere Ultimate Low Output is built for homes with a \u003cstrong\u003erestricted load supply\u003c\/strong\u003e or properties that need to manage electrical demand carefully. It is \u003cstrong\u003ecompatible with self-generated solar electricity and battery storage systems\u003c\/strong\u003e, making it a strong fit for low-heat-loss, well-insulated properties where minimising instantaneous draw matters.\u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003cdiv style=\"background:#FFF6E5; border-left:4px solid #B8860B; border-radius:6px; padding:14px 16px; margin:16px 0;\"\u003e\n        \u003cdiv style=\"font-weight:700; margin-bottom:4px;\"\u003e⚠️ Lower Output Than Standard Ultimate Cable\u003c\/div\u003e\n        \u003cdiv style=\"line-height:1.55; font-size:15px;\"\u003eThis is a genuinely \u003cstrong\u003edifferent output tier\u003c\/strong\u003e from the standard ThermoSphere Ultimate cable range. Standard Ultimate delivers 130W\/m² or 195W\/m²; the \u003cstrong\u003eLow Output version delivers 57W\/m² or 85W\/m²\u003c\/strong\u003e — roughly 44% of the standard output at the same stud spacing. Always confirm the room's heat-loss calculation supports this lower output before specifying, particularly if the cable is intended as a primary heat source rather than a supplementary comfort heat.\u003c\/div\u003e\n    \u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; margin:20px 0;\"\u003e\n        \u003cdiv style=\"flex:1 1 260px; background:#F7FBFA; border:1px solid #E0EDEB; border-top:3px solid #008377CF; border-radius:8px; padding:16px; margin:6px;\"\u003e\n            \u003cdiv style=\"font-weight:700; color:#00625D; margin-bottom:8px; font-size:15px;\"\u003eIn-Line Joint — No Cutting Into the Floor\u003c\/div\u003e\n            \u003cdiv style=\"font-size:14px; line-height:1.55; color:#333;\"\u003eThe cable's \u003cstrong\u003ein-line joint is the same diameter as the cable body throughout\u003c\/strong\u003e — it presses flat into the membrane's stud channel with no groove needing to be cut. This keeps the membrane's waterproofing layer completely intact and removes a common point of installation damage.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; background:#F7FBFA; border:1px solid #E0EDEB; border-top:3px solid #008377CF; border-radius:8px; padding:16px; margin:6px;\"\u003e\n            \u003cdiv style=\"font-weight:700; color:#00625D; margin-bottom:8px; font-size:15px;\"\u003eTwistedTwin Cable — Stress-Free, Fully Earthed\u003c\/div\u003e\n            \u003cdiv style=\"font-size:14px; line-height:1.55; color:#333;\"\u003eThermoSphere's proprietary \u003cstrong\u003eTwistedTwin cable\u003c\/strong\u003e uses a twisted-pair conductor construction that neutralises mechanical stress under repeated thermal cycling. A \u003cstrong\u003econtinuous full earth braid\u003c\/strong\u003e runs the entire cable length for consistent electrical safety.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; background:#F7FBFA; border:1px solid #E0EDEB; border-top:3px solid #008377CF; border-radius:8px; padding:16px; margin:6px;\"\u003e\n            \u003cdiv style=\"font-weight:700; color:#00625D; margin-bottom:8px; font-size:15px;\"\u003eSelectable Output — 57W\/m² or 85W\/m²\u003c\/div\u003e\n            \u003cdiv style=\"font-size:14px; line-height:1.55; color:#333;\"\u003eOutput is set purely by \u003cstrong\u003estud spacing in the membrane\u003c\/strong\u003e: 3-dimple spacing gives \u003cstrong\u003e57W\/m²\u003c\/strong\u003e, 2-dimple spacing gives \u003cstrong\u003e85W\/m²\u003c\/strong\u003e. No tools or extra accessories are needed to change the output — just vary the routing pattern.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; background:#F7FBFA; border:1px solid #E0EDEB; border-top:3px solid #008377CF; border-radius:8px; padding:16px; margin:6px;\"\u003e\n            \u003cdiv style=\"font-weight:700; color:#00625D; margin-bottom:8px; font-size:15px;\"\u003eBuilt for Restricted Electrical Loads\u003c\/div\u003e\n            \u003cdiv style=\"font-size:14px; line-height:1.55; color:#333;\"\u003eLower per-square-metre draw makes this cable a practical fit for properties on a \u003cstrong\u003elimited supply capacity\u003c\/strong\u003e, or where the design intent is to run heating primarily from \u003cstrong\u003esolar generation and battery storage\u003c\/strong\u003e rather than continuous grid draw.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; background:#F7FBFA; border:1px solid #E0EDEB; border-top:3px solid #008377CF; border-radius:8px; padding:16px; margin:6px;\"\u003e\n            \u003cdiv style=\"font-weight:700; color:#00625D; margin-bottom:8px; font-size:15px;\"\u003eExtra Heavy Use — Robinson Test Rated\u003c\/div\u003e\n            \u003cdiv style=\"font-size:14px; line-height:1.55; color:#333;\"\u003eRated for \u003cstrong\u003eextra heavy use\u003c\/strong\u003e under the Robinson Test, the industry benchmark for cable durability under concentrated loading. Withstands heavy furniture, foot traffic, and tile installation without damage.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; background:#F7FBFA; border:1px solid #E0EDEB; border-top:3px solid #008377CF; border-radius:8px; padding:16px; margin:6px;\"\u003e\n            \u003cdiv style=\"font-weight:700; color:#00625D; margin-bottom:8px; font-size:15px;\"\u003eCompatible With All Decoupling Membrane Brands\u003c\/div\u003e\n            \u003cdiv style=\"font-size:14px; line-height:1.55; color:#333;\"\u003eOptimised for ThermoSphere Membrane Mats but \u003cstrong\u003ecompatible with all decoupling membrane brands\u003c\/strong\u003e. Installers with a preferred membrane can retain it while specifying this cable.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; background:#F7FBFA; border:1px solid #E0EDEB; border-top:3px solid #008377CF; border-radius:8px; padding:16px; margin:6px;\"\u003e\n            \u003cdiv style=\"font-weight:700; color:#00625D; margin-bottom:8px; font-size:15px;\"\u003eIP68 — Safe in Wet Rooms and Bathrooms\u003c\/div\u003e\n            \u003cdiv style=\"font-size:14px; line-height:1.55; color:#333;\"\u003e\n\u003cstrong\u003eIP68 rated\u003c\/strong\u003e — fully impervious to moisture, safe for use in wet rooms, shower areas and bathrooms when installed with appropriate waterproofing accessories.\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"flex:1 1 260px; background:#F7FBFA; border:1px solid #E0EDEB; border-top:3px solid #008377CF; border-radius:8px; padding:16px; margin:6px;\"\u003e\n            \u003cdiv style=\"font-weight:700; color:#00625D; margin-bottom:8px; font-size:15px;\"\u003eLifetime Warranty — Stays With the Property\u003c\/div\u003e\n            \u003cdiv style=\"font-size:14px; line-height:1.55; color:#333;\"\u003eBacked by a \u003cstrong\u003elifetime warranty\u003c\/strong\u003e when registered online. The warranty \u003cstrong\u003etransfers with the property on sale\u003c\/strong\u003e — new owners remain covered.\u003c\/div\u003e\n        \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#008377CF; color:#fff; font-weight:700; padding:8px 14px; font-size:13px; text-transform:uppercase; letter-spacing:0.04em; border-radius:4px 4px 0 0; margin-top:24px;\"\u003eTechnical Data\u003c\/div\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin:0 0 4px 0;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 14px; font-weight:600; color:#333; font-size:14px; width:46%; border-bottom:1px solid #E5E5E5;\"\u003eVoltage\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 14px; color:#222; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e230V \/ 50Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 14px; font-weight:600; color:#333; font-size:14px; width:46%; border-bottom:1px solid #E5E5E5;\"\u003eOutput (3-stud spacing)\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 14px; color:#222; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e57 W\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 14px; font-weight:600; color:#333; font-size:14px; width:46%; border-bottom:1px solid #E5E5E5;\"\u003eOutput (2-stud spacing)\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 14px; color:#222; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e85 W\/m²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 14px; font-weight:600; color:#333; font-size:14px; width:46%; border-bottom:1px solid #E5E5E5;\"\u003eMembrane Thickness\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 14px; color:#222; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e5.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 14px; font-weight:600; color:#333; font-size:14px; width:46%; border-bottom:1px solid #E5E5E5;\"\u003eCable Lengths\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 14px; color:#222; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e12m to 200m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 14px; font-weight:600; color:#333; font-size:14px; width:46%; border-bottom:1px solid #E5E5E5;\"\u003eCable Insulation\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 14px; color:#222; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003eFEP and HR-PVC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 14px; font-weight:600; color:#333; font-size:14px; width:46%; border-bottom:1px solid #E5E5E5;\"\u003eProtection Rating\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 14px; color:#222; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003eIP68\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 14px; font-weight:600; color:#333; font-size:14px; width:46%; border-bottom:1px solid #E5E5E5;\"\u003eRobinson Test Rating\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 14px; color:#222; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003eExtra heavy use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 14px; font-weight:600; color:#333; font-size:14px; width:46%; border-bottom:1px solid #E5E5E5;\"\u003eRecommended Max Floor Temperature\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 14px; color:#222; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e27°C (limited by thermostat controls)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 14px; font-weight:600; color:#333; font-size:14px; width:46%; border-bottom:1px solid #E5E5E5;\"\u003eJoint Type\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 14px; color:#222; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003eIn-line (same diameter as cable body — no membrane cuts required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 14px; font-weight:600; color:#333; font-size:14px; width:46%; border-bottom:1px solid #E5E5E5;\"\u003eWarranty\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 14px; color:#222; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003eLifetime (online registration required)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 14px; font-weight:600; color:#333; font-size:14px; width:46%; border-bottom:1px solid #E5E5E5;\"\u003eCable Country of Origin\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 14px; color:#222; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003eIndia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 14px; font-weight:600; color:#333; font-size:14px; width:46%; border-bottom:1px solid #E5E5E5;\"\u003eMembrane Country of Origin\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 14px; color:#222; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003eItaly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"overflow-x:auto; margin:20px 0;\"\u003e\u003ctable style=\"width:100%; border-collapse:collapse; min-width:600px;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"background:#008377CF; color:#fff; padding:10px 12px; font-size:13px; text-align:left; border-bottom:1px solid #E5E5E5;\"\u003eSKU\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#fff; padding:10px 12px; font-size:13px; text-align:left; border-bottom:1px solid #E5E5E5;\"\u003eCable Length\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#fff; padding:10px 12px; font-size:13px; text-align:left; border-bottom:1px solid #E5E5E5;\"\u003eArea @ 57W\/m²\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#fff; padding:10px 12px; font-size:13px; text-align:left; border-bottom:1px solid #E5E5E5;\"\u003eArea @ 85W\/m²\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#fff; padding:10px 12px; font-size:13px; text-align:left; border-bottom:1px solid #E5E5E5;\"\u003eOutput (W)\u003c\/th\u003e\n\u003cth style=\"background:#008377CF; color:#fff; padding:10px 12px; font-size:13px; text-align:left; border-bottom:1px solid #E5E5E5;\"\u003eEAN\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003eHDMC-5-012\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e12m\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e1.2 m²\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e0.8 m²\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e68W\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e5056257309507\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003eHDMC-5-018\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e18m\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e1.7 m²\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e1.2 m²\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e102W\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e5056257309514\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003eHDMC-5-025\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e25m\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e2.3 m²\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e1.5 m²\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e128W\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e5056257309521\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003eHDMC-5-031\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e31m\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e2.9 m²\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e1.9 m²\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e162W\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e5056257309538\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003eHDMC-5-037\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e37m\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e3.5 m²\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e2.3 m²\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e196W\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e5056257309545\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003eHDMC-5-050\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e50m\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e4.6 m²\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e3.1 m²\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e264W\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e5056257309552\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003eHDMC-5-061\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e61m\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e5.8 m²\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e3.8 m²\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e323W\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e5056257309569\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003eHDMC-5-075\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e75m\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e6.9 m²\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e4.6 m²\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e391W\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e5056257309576\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003eHDMC-5-100\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e100m\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e9.2 m²\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e6.2 m²\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e527W\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e5056257309583\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003eHDMC-5-125\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e125m\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e11.5 m²\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e7.7 m²\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e655W\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e5056257309590\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003eHDMC-5-150\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e150m\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e13.8 m²\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e9.2 m²\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e782W\u003c\/td\u003e\n\u003ctd style=\"background:#F7FBFA; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e5056257309606\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003eHDMC-5-200\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e200m\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e18.5 m²\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e12.3 m²\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e1046W\u003c\/td\u003e\n\u003ctd style=\"background:#FFFFFF; padding:9px 12px; font-size:14px; border-bottom:1px solid #E5E5E5;\"\u003e5056257309613\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n    \u003cdiv style=\"background:#FDEDEE; border-left:4px solid #C0392B; border-radius:6px; padding:14px 16px; margin:16px 0;\"\u003e\n        \u003cdiv style=\"font-weight:700; margin-bottom:4px;\"\u003e⚠️ Qualified Electrician Required\u003c\/div\u003e\n        \u003cdiv style=\"line-height:1.55; font-size:15px;\"\u003eAll electrical connections must be made by a \u003cstrong\u003equalified electrician\u003c\/strong\u003e in accordance with \u003cstrong\u003eBS 7671\u003c\/strong\u003e. Register your product with ThermoSphere online after installation to activate the lifetime warranty.\u003c\/div\u003e\n    \u003c\/div\u003e\n\u003cdiv style=\"background:#008377CF; color:#fff; font-weight:700; padding:8px 14px; font-size:13px; text-transform:uppercase; letter-spacing:0.04em; border-radius:4px 4px 0 0; margin-top:24px;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdiv style=\"margin-top:12px;\"\u003e\n        \u003cdiv style=\"border:1px solid #CDE3E1; border-radius:8px; margin-bottom:10px; overflow:hidden;\"\u003e\n            \u003cdetails\u003e\n                \u003csummary style=\"padding:14px 18px; font-size:15px; font-weight:700; color:#00625D; cursor:pointer; background:#E6F4F3;\"\u003eWhat makes this different from the standard ThermoSphere Ultimate cable?\u003c\/summary\u003e\n                \u003cdiv style=\"padding:12px 18px; font-size:14px; line-height:1.6; color:#333;\"\u003eThe standard Ultimate cable delivers 130W\/m² or 195W\/m². This Low Output version delivers \u003cstrong\u003e57W\/m² or 85W\/m²\u003c\/strong\u003e — designed specifically for restricted load supplies and low heat-loss properties, rather than as a direct primary heat source in higher heat-loss rooms.\u003c\/div\u003e\n            \u003c\/details\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"border:1px solid #CDE3E1; border-radius:8px; margin-bottom:10px; overflow:hidden;\"\u003e\n            \u003cdetails\u003e\n                \u003csummary style=\"padding:14px 18px; font-size:15px; font-weight:700; color:#00625D; cursor:pointer; background:#E6F4F3;\"\u003eWhich membrane do I use with this cable?\u003c\/summary\u003e\n                \u003cdiv style=\"padding:12px 18px; font-size:14px; line-height:1.6; color:#333;\"\u003eDesigned for ThermoSphere Membrane Mats but compatible with all decoupling membrane brands.\u003c\/div\u003e\n            \u003c\/details\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"border:1px solid #CDE3E1; border-radius:8px; margin-bottom:10px; overflow:hidden;\"\u003e\n            \u003cdetails\u003e\n                \u003csummary style=\"padding:14px 18px; font-size:15px; font-weight:700; color:#00625D; cursor:pointer; background:#E6F4F3;\"\u003eWhat outputs can I achieve?\u003c\/summary\u003e\n                \u003cdiv style=\"padding:12px 18px; font-size:14px; line-height:1.6; color:#333;\"\u003e57W\/m² at 3-stud spacing, or 85W\/m² at 2-stud spacing. No tools or extra parts are needed to switch between the two — output is set entirely by how the cable is routed through the membrane.\u003c\/div\u003e\n            \u003c\/details\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"border:1px solid #CDE3E1; border-radius:8px; margin-bottom:10px; overflow:hidden;\"\u003e\n            \u003cdetails\u003e\n                \u003csummary style=\"padding:14px 18px; font-size:15px; font-weight:700; color:#00625D; cursor:pointer; background:#E6F4F3;\"\u003eIs this cable suitable as a primary heat source?\u003c\/summary\u003e\n                \u003cdiv style=\"padding:12px 18px; font-size:14px; line-height:1.6; color:#333;\"\u003eIt can be, but only where the room's heat-loss calculation supports the lower output — typically well-insulated new-build properties. For higher heat-loss rooms such as bathrooms, conservatories, or older solid-wall properties, the standard 130W\/m² or 195W\/m² Ultimate cable is usually the better fit.\u003c\/div\u003e\n            \u003c\/details\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"border:1px solid #CDE3E1; border-radius:8px; margin-bottom:10px; overflow:hidden;\"\u003e\n            \u003cdetails\u003e\n                \u003csummary style=\"padding:14px 18px; font-size:15px; font-weight:700; color:#00625D; cursor:pointer; background:#E6F4F3;\"\u003eWhat lengths are available?\u003c\/summary\u003e\n                \u003cdiv style=\"padding:12px 18px; font-size:14px; line-height:1.6; color:#333;\"\u003e12m to 200m across twelve cable sizes, sized to suit areas from around 0.8 m² up to 18.5 m² depending on the stud spacing used.\u003c\/div\u003e\n            \u003c\/details\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"border:1px solid #CDE3E1; border-radius:8px; margin-bottom:10px; overflow:hidden;\"\u003e\n            \u003cdetails\u003e\n                \u003csummary style=\"padding:14px 18px; font-size:15px; font-weight:700; color:#00625D; cursor:pointer; background:#E6F4F3;\"\u003eCan the cable be cut?\u003c\/summary\u003e\n                \u003cdiv style=\"padding:12px 18px; font-size:14px; line-height:1.6; color:#333;\"\u003eNo — never cut the heating cable. Select the cable length that matches your area at your chosen output before purchase.\u003c\/div\u003e\n            \u003c\/details\u003e\n        \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"ThermoSphere","offers":[{"title":"12m - 57W=1.2m² 85W=0.8m²","offer_id":65318217580893,"sku":"HDMC-5-012","price":53.0,"currency_code":"GBP","in_stock":true},{"title":"18m - 57W=1.7m² 85W=1.2m²","offer_id":65318217613661,"sku":"HDMC-5-018","price":75.0,"currency_code":"GBP","in_stock":true},{"title":"25m - 57W=2.3m² 85W=1.5m²","offer_id":65318217646429,"sku":"HDMC-5-025","price":99.0,"currency_code":"GBP","in_stock":true},{"title":"31m - 57W=2.9² 85W=1.9m²","offer_id":65318217679197,"sku":"HDMC-5-031","price":123.0,"currency_code":"GBP","in_stock":true},{"title":"37m - 57W=3.5m² 85W=2.3m²","offer_id":65318217711965,"sku":"HDMC-5-037","price":143.0,"currency_code":"GBP","in_stock":true},{"title":"50m - 57W=4.6m² 85W=3.1m²","offer_id":65318217777501,"sku":"HDMC-5-050","price":190.0,"currency_code":"GBP","in_stock":true},{"title":"61m - 57W=5.8m² 85W=3.8m²","offer_id":65318217843037,"sku":"HDMC-5-061","price":230.0,"currency_code":"GBP","in_stock":true},{"title":"75m - 57W=6.9m² 85W=4.6m²","offer_id":65318217875805,"sku":"HDMC-5-075","price":274.0,"currency_code":"GBP","in_stock":true},{"title":"100m - 57W=9.2m² 85W=6.2m²","offer_id":65318217941341,"sku":"HDMC-5-100","price":370.0,"currency_code":"GBP","in_stock":true},{"title":"125m - 57W=11.5m² 85W=7.7m²","offer_id":65318217974109,"sku":"HDMC-5-125","price":457.0,"currency_code":"GBP","in_stock":true},{"title":"150m - 57W=13.8m² 85W=9.2m²","offer_id":65318218006877,"sku":"HDMC-5-150","price":550.0,"currency_code":"GBP","in_stock":true},{"title":"200m - 57W=18.5m² 85W=12.3m²","offer_id":65318218072413,"sku":"HDMC-5-200","price":730.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/ThermoSphereUltimateLowOutputDecouplingMembraneHeatingCableReel.jpg?v=1784655582","url":"https:\/\/qualityheating.co.uk\/products\/thermosphere-low-output-ultimate-decoupling-membrane-heating-cable-57w-m-or-85w-m-in-line-joint","provider":"AIZO Quality Heating","version":"1.0","type":"link"}