100mm HVAC Duct Insulation Liner - Hydro Thermal Wrap for Pipes & Vent Systems

Hydro Duct Liner is a high-performance thermal insulation sleeve designed for insulating warm air ducts used with Webasto, Eberspacher, and similar heating systems. It provides exceptional heat retention, helping to reduce heat loss over long duct runs and significantly improve heating efficiency. Manufactured from a high-quality hydrophobic micro-fibre, Hydro Duct Liner repels moisture, prevents mould growth, and delivers market-leading thermal and acoustic insulation performance. Trusted by luxury vehicle manufacturers worldwide, it offers a professional solution for campervans, motorhomes, and marine heating systems. By reducing heat loss, Hydro Duct Liner can increase effective heater output, shorten heater run times, and improve fuel and electrical efficiency—making it a cost-effective upgrade for any HVAC ducting system. Key Features ✔ Very high thermal insulation performance ✔ Hydrophobic & water-resistant – prevents condensation & mould ✔ High noise reduction properties ✔ Flame retardant construction ✔ Lightweight, flexible & highly compressible micro-fibre ✔ Easy to fit over existing ducting ✔ Used by luxury vehicle manufacturers worldwide Product Specifications Quantity: 1 x Duct Liner (or more - please select the q-ty from drop down menu) Size: 100mm diameter × 750mm length Fits: 100mm heater ducts Weight: 400gsm Nominal Thickness: 15-25mm Temperature Range: -40°C to +110°C Applications Campervan heating systems Motorhome HVAC ducting Marine warm air ducts Webasto & Eberspacher heater installations Ventilation & air distribution systems Conclusion Hydro Duct Liner is a reliable, professional-grade solution for improving the efficiency and performance of warm air ducting systems. Whether you are upgrading a campervan, motorhome, marine vessel, or HVAC installation, this insulation helps retain heat, reduce noise, and protect against moisture—delivering long-lasting performance and energy savings. Easy to install and trusted by luxury vehicle manufacturers, Hydro Duct Liner is the ideal choice for efficient, high-quality duct insulation.