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ProWarm™ Aluminium Spreader Plate 390mmx1000mm - 150mm Centres

Was £7.99
From Was £7.99
Was £7.99
Now £7.19
From £7.19
Now £7.19
Save £0.80 Save £0.80
in stock, ready to be shipped
ProWarm™ Aluminium Spreader Plate 390mmx1000mm - 150mm Centres
From Was £7.99
Was £7.99
From £7.19
Now £7.19
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Upgrade your underfloor heating system with ProWarm™ Aluminium Spreader Plate 390mmx1000mm. These high-quality diffuser plates are specifically designed to provide efficient heat distribution across your floor. With a size of 390mm x 1000mm and 150mm centers, these spreader plates are ideal for joist centers of 400mm.

The key features of ProWarm™ Aluminium Spreader Plate 390mmx1000mm include:

  • Easy Installation: The spreader plates are laid across traditional joists and can be fixed in place using a hand stapler. Enjoy a hassle-free installation process.
  • Optimal Heat Distribution: The high-grade aluminum construction of the spreader plates ensures an even spread of heat across the entire floor surface. Experience consistent and comfortable warmth in your living space.
  • Suitable for Wooden Joists: These spreader plates are specifically designed for wooden joists with 400mm centers. They provide excellent compatibility and performance in wooden floor constructions.
  • Lightweight Design: The spreader plates are lightweight, making them easy to handle and install. Save time and effort during the installation process.
  • Compatible with 15mm or 16mm Pipe: This product is designed to work seamlessly with 15mm or 16mm Pert-Al-Pert pipe. Choose the pipe size that suits your specific underfloor heating system.

For optimal performance and pipe spacings of 200mm, we recommend purchasing the High Output or Multi Room kit. Please note that the standard room kits have a pipe spacing of 250mm.

Upgrade your underfloor heating system with ProWarm™ Aluminium Spreader Plate 390mmx1000mm. Experience efficient heat distribution, quick installation, and the ultimate comfort in your living space.

This high grade aluminium plate is designed for use with 15mm or 16mm pipework.

Width 390mm
Length 1000mm
Depth 0.5mm
Weight 0.56kg
Groove spacings 150mm centres
Total floor coverage per plate 0.39m2

As you begin, you will need to place the aluminium spreader plates away from the walls to allow room for the pipes to bend and return in the opposite direction. allow at least 250 mm for this.

Secure the spreader plates as you go using either staples, nails or screws. Whichever you use, be sure they are secured flush with the surface of the spreader plate.

When you place the second spreader plate, leave a 10 mm gap to allow for expansion.

Before securing this second spreader plate, insert a small length of pipe into the two spreader plates' meeting channels to ensure they align correctly.

Leave this in place whilst you secure the second spreader plate before removing. At no point allow the spreader plates to overlap as this will cause a noise when heating up and cooling down.

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Our customer support is available Monday to Friday 7am-6pm.

Call us on 01268 567 016

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Free delivery on all orders

At The Underfloor Heating Store, we strive to make every step of your order as easy and convenient as possible, from finding the right underfloor heating setup to best suit you to taking delivery of your system the very next day.

We're proud to offer a range of delivery options to suit you, including free delivery on all of our orders or next working day delivery for a fixed price of £4.99

  • 2-3 working days delivery - FREE (Order before 4pm Monday - Friday)
  • Next working day - £4.99 (Order before 4pm Monday - Friday, applies to orders over £19.99)
  • Next working day before 10.30am - £14.99 (Order before 4pm Monday - Friday)
  • Saturday delivery - £29.99 (Order before 4pm Monday - Friday)
  • Free collection from our Basildon warehouse in Essex

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30 days returns policy

At The Underfloor Heating Store, our customers have 30 days to upgrade, replace or refund their orders.


At The Underfloor Heating Store, we want to ensure you are happy with every purchase you make. If you have any issues with your chosen product, whether damaged, faulty or simply an unwanted item, you can simply return what you bought for a refund. Learn more.


We take great care in the delivery of all of our products, however, in the event of your delivery arriving damaged or if you notice a manufacturing fault of any kind within 48 hours of delivery, you're within your rights to a replacement. Learn more.


Within 14 days of purchasing from us, you are eligible to upgrade if you deem you want something a little better. Simply send it back to us brand new and we'll happily assist you with an upgrade to your order. Learn more.

Lifetime warranty

At The Underfloor Heating Store, we are committed to providing our customers with high-quality products and outstanding customer service. That's why we offer a comprehensive warranty on all of our underfloor heating products, with a lifetime warranty for our ProWarm range of products.

Our warranties are designed to give you peace of mind and ensure that your underfloor heating system operates reliably for years to come.

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We'll beat any price

At The Underfloor Heating Store, our main priority is customer satisfaction. To cement our commitment to this, we are proud to offer our Underfloor Heating Price Match Promise. If you find a lower price on an identical product anywhere else, we will match it – guaranteed!

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