Diesel Heater Duct Insulation Thermoduct Insulated Duct Sleeve 75mm–90mm x 750mm

Maximise the performance of your diesel heater with this Thermoduct insulated duct sleeve, designed to fit 75mm–90mm warm air ducting in campervans, motorhomes, boats and commercial vehicles.

Insulating your diesel heater ducting insulation helps retain heat as it travels through the system, reducing heat loss and improving the overall efficiency of your heating setup.

Sold in 750mm lengths – simply adjust the quantity to match the total length of ducting you wish to insulate.

Improve Heating Performance

Independent testing has shown that up to 40% of a heater's heat output can be lost through uninsulated ducting. Thermoduct helps reduce this heat loss, allowing more warm air to reach your living space.

Benefits include:

• Faster cabin warm-up times

• Improved heating efficiency

• Reduced fuel consumption

• Lower battery and electrical usage

• Better overall heater performance

Product Features

• Suitable for 75mm–90mm warm air ducting

• 750mm length (sold per section)

• Manufactured from 19mm Thinsulate™ insulation

• Excellent thermal insulation properties

• Moisture and water-resistant

• Durable outer fabric for long-lasting protection

• Fully stitched construction for easy installation

• Helps reduce heat loss through ducting

Quick & Easy Installation

The closed-end stitched design allows the ducting to slide smoothly into the sleeve without snagging the insulation, making installation fast and hassle-free.

Ideal For

• Campervans

• Motorhomes

• Caravans

• Boats

• Commercial vehicles

• Off-grid and expedition vehicles

Technical Specifications

• Suitable Duct Size: 75mm–90mm

• Length: 750mm

• Insulation Material: 19mm Thinsulate™

• Application: Warm air heater duct insulation

Ordering Information

This Thermoduct is sold in 750mm lengths.

To cover longer duct runs, simply increase the quantity ordered. For example:

• Quantity 2 = 1.5 metres

• Quantity 4 = 3 metres

Adding Thermoduct insulation is one of the easiest ways to improve the efficiency of your diesel heating system, helping to deliver more heat where you need it while reducing fuel and power consumption.

FAQ

What size ducting does this sleeve fit?
This sleeve is designed for 75mm–90mm warm air ducting.

How is it sold?
It is sold in 750mm lengths, so you can order the quantity needed for your duct run.

What does duct insulation do?
It helps reduce heat loss from diesel heater ducting, improving heating efficiency and helping more warm air reach your living space.