HTS Twinwall Flue



14/08/2023 – We we will be away from the office from 2nd September to 14th October 2023, so online ordering has been disabled. If you would like to leave us a message for our return, please do so by visiting the contact us page.

We now supply a more economical Class 1 twinwall flue, HTS, made in the West Midlands.

Recommended where the flue is passing though the roof and in situations where the external flue temperature is a concern or a greater draw is required, this is available in 100mm (4″) and 130mm(5″) sizes.

You will need an adapter from single wall flue or from the stove, and a cowl (hat) on top.

Please contact us if you’d like to buy any combination of flue and flashings, or you are finding the shop section tricky to navigate.

Usually start with a section of single wall flue, and start the insulated flue at least 200mm from the ceiling; this is ideal for passing through the roof.

Available in various lengths, elbows and Ts.

The outer diameter of 4″ Twinwall is 6″ or 150mm
The outer diameter of 5″ Twinwall is 7″ or 180mm.

Though not as robust as Devon’s own SFL Nova, which we do still keep a stock of, this is a much lighter and more affordable product, still meeting all relevant standards.

Online Ordering

We are currently in the process of introducing online ordering and payment. If you can see an ‘Add to Basket’ button, use this to quickly and easily order the items required. Payment can be made by card using Stripe, direct bank transfer or cash on collection.

Otherwise, please follow the steps below to make a manual order.

Ordering By Email

Please send us an email containing information on the item(s) you want, quantity, and size (if applicable).

We will also need a delivery address and phone number to process your order.

We will get back to you as soon as we can with an invoice and payment details.

Online Orders

This information will be taken automatically when ordering directly through our website.

Ordering By Email

For orders sent by courier or post, we require:

  • Delivery address
  • Invoice address (if different)
  • Contact telephone number to supply to the delivery company

If you’re making an order over email, we will require this information to confirm the order.

We’re not currently shipping outside of the UK.

We send most items using Parcelforce. Delivery fee depends on your location in the UK.

On Delivery

Although 99% of orders go smoothly,:

  1. DO NOT sign for your order until it has been thoroughly checked, or sign as DAMAGED if the driver will not wait.
  2. We need to be notified of any damage or discrepancies in your order within 24 hours of receipt.
  3. Please read our Terms & Conditions, which you are deemed to have accepted on placing an order.