Insulation Boards
Optimize your underfloor heating system with SunStone Insulation Board from Electrical4Less. These boards enhance heating efficiency and provide a stable base for various flooring types.
Showing all 6 results
Optimize your underfloor heating system with SunStone Insulation Board from Electrical4Less. These boards enhance heating efficiency and provide a stable base for various flooring types.
Showing all 6 results
Showing all 6 results
The ideal solution for reducing your heating costs: SunStone insulation boards prevent heat-loss downwards, this means that the heat produced by your underfloor heating system is retained in the room for longer. Therefore, you use your heating less frequently or for shorter periods of time.
Insulation boards play a critical role in the installation of electric underfloor heating systems. They are used to improve the efficiency and performance of the heating system by reducing heat loss and ensuring even heat distribution. Here are some key points to consider regarding insulation boards for electric underfloor heating:
1. Purpose of Insulation Boards:
2. Types of Insulation Boards:
3. Thickness and R-Value: The thickness and insulating properties of the board should be selected based on your specific heating system and the insulation requirements of your project. Thicker boards generally have higher R-values, indicating better insulation.
4. Compatibility: Ensure that the insulation board you choose is compatible with the type of flooring and underfloor heating system you plan to install. Some systems and floor coverings may have specific requirements for insulation thickness and type.
5. Installation: Proper installation of the insulation boards is crucial. They should be laid evenly across the entire floor area, with joints staggered and tightly sealed to prevent heat loss. Follow the manufacturer’s installation guidelines and any recommendations from the underfloor heating system manufacturer.
6. Moisture Resistance: In areas where moisture could be a concern, such as bathrooms or kitchens, it’s essential to select insulation boards that are moisture-resistant to prevent damage and maintain insulation effectiveness.
7. Local Building Codes: Be sure to comply with local building codes and regulations regarding insulation requirements for underfloor heating installations.
8. Professional Installation: While some DIY enthusiasts may choose to install insulation boards themselves, it’s often advisable to have a professional installer or electrician handle the installation, especially if you are not experienced in this type of work.
Proper insulation is a crucial component of an efficient and effective electric underfloor heating system. Choosing the right insulation board and ensuring its correct installation can maximize the benefits of your underfloor heating while minimizing heat loss and energy consumption.
Cut-Off Time and Order Information
To ensure your order qualifies for next day delivery, please place your order by 3:00 PM. This is subject to all items being available on the shelf at the time of your order. For orders where the total value exceeds £150 + VAT (double our standard carriage-paid order value of £75 + VAT), we are happy to split the delivery into two shipments if some items are needed urgently and others are not immediately available. If you have any questions or need further assistance, feel free to reach out to us via WhatsApp for live support. We’re here to help!
Free Next-Day Delivery Over £75 + VAT:
Orders above £75 + VAT qualify for free next-day delivery via DPD for in-stock items. While we strive for timely dispatch, we recommend placing orders early to avoid potential delays. Once dispatched, unexpected issues may arise despite the courier’s efforts.
Orders Below £150 + VAT:
To keep costs manageable, we dispatch your order once all items are ready, including products with longer lead times.
Need items faster? You can pay for an additional delivery service to receive in-stock items sooner. Simply email us with your order details, and we’ll send you a payment link for the extra delivery cost.
Orders Above £150 + VAT:
For larger orders, we can split delivery at no extra cost. In-stock items will be sent immediately, with the remaining items dispatched once available.
Items with Lead Times (e.g., 1–3 Working Days):
This means we need to source the product from our supplier before sending it to you. The estimated dispatch time is displayed on each product page.
Out of Stock at Supplier:
If an item is unavailable at the supplier, we will contact you promptly. You’ll have the option to choose an alternative product or request a full refund.
No problem — message us directly on WhatsApp and we’ll help you out.
We usually respond within minutes during working hours.


