FAQ's

Find answers to the most common questions about Heatkeeper Radiator Reflector Panels below.

About Heatkeeper Panels

What are Heatkeeper Radiator Reflector Panels?

Heatkeeper Radiator Reflector Panels are an energy-saving product designed to improve the efficiency of central heating systems, particularly radiators. Made from a thin layer of highly reflective silver-coated PVC, they act as a barrier between your radiator and the wall.

When a radiator emits heat, a significant portion is absorbed by the adjacent wall and lost to the outside. Heatkeeper panels reflect that heat back into the room, maintaining a more comfortable and consistent temperature while reducing energy consumption and heating bills.

What are Heatkeepers made from?

Heatkeeper Radiator Panels are made from metalised PVC (Polyvinyl Chloride). The metalised coating reflects heat emitted from the radiator back into the room, preventing it from being absorbed by the wall and maximising heating efficiency.

How long do Heatkeepers last?

Heatkeepers are extremely durable. We are aware of panels that have been fitted for over 30 years and are still performing effectively. We also back this up with our 10-year guarantee for complete peace of mind.

Are Heatkeepers safe — is there any fire risk?

When used correctly on water-filled radiators, Heatkeeper panels present no fire risk:

• Radiator surface temperatures in a typical domestic central heating system reach between 60°C and 75°C — well within safe operating range.
• The wall behind the panel will be considerably cooler, typically warming to only around 35°C to 45°C.
• PVC melting point is 160°C to 210°C — far above the temperatures generated by a standard radiator.

As long as the panels are fitted to water-filled radiators as intended, they are completely safe to use.

Heatkeeper panels vs hanging foil reflectors — what’s the difference?

Heatkeeper panels outperform hanging foil reflectors in several key ways:

• Coverage: Heatkeeper panels cover the entire surface area behind the radiator. Hanging foil only sits between the brackets and leaves gaps.
• Insulation: The sawtooth design of Heatkeeper panels adds an insulating layer in addition to heat reflection. Foil provides reflection only.
• Energy savings: Full coverage and insulation combine to deliver more substantial energy savings.
• Comfort: Better coverage means fewer cold spots and a more consistent room temperature.

Why shouldn’t I just use foil?

Plain laminated aluminium foil is a common DIY approach and does reflect some heat. However, it will not provide as much insulation or coverage as dedicated radiator reflector panels like Heatkeeper, and it is not purpose-designed for the task.

Can Heatkeeper cut-offs be recycled?

Yes — Heatkeepers are made of metalised PVC. You will need to contact your local authority for advice on their recycling policy, as the presence of a metal layer means metalised PVC cannot always be processed in the same way as standard PVC.

Fitting & Installation

How are Heatkeeper panels fitted?

Heatkeeper panels are designed to be easy to fit without removing the radiator. Here’s a step-by-step guide:

1. Clean the wall behind the radiator — a radiator brush works well for this.
2. Measure and cut the panel to size using scissors or a utility knife, following the marked dotted lines.
3. Attach the adhesive tape (included) to the edges of the panel.
4. Position the panel behind the radiator with the reflective side facing the radiator.
5. Press firmly against the wall, using a cane to reach behind if needed.
6. Check for gaps — the panel should cover as much of the wall behind the radiator as possible without being visible from the front.
7. Test your heating — turn on the system and enjoy a warmer, more efficient room.

View full fitting instructions and video guides →

Are Heatkeepers easy to cut?

Yes — simply follow the instructions and cut along the marked dotted lines.

How do I install Heatkeepers on radiators close to the wall?

Use the hanging method — DURAGRIP spines fit securely along the top of the panel, enabling it to hang from the radiator brackets. This is ideal for radiators hung close to the wall or under an overhanging window sill.

I have a window sill or shelf close to the top of my radiator — can I still fit Heatkeepers?

Yes — with the alternative hanging method, Heatkeepers can be used in those hard-to-reach areas such as under sills and with small gaps.

I have a curved wall — will Heatkeepers still work?

Yes — Heatkeeper panels can work effectively on curved walls. For best results:

1. Clean behind the radiator with a radiator brush before installation.
2. Secure the panels firmly to ensure they remain in position.
3. Consider using a construction adhesive for added bond on curved surfaces.

Compatibility

Do Heatkeepers work with combi boilers?

Yes — Heatkeeper panels work with all types of central heating systems, including combi boilers, which are the most common heating setup in UK homes. As long as you have water-filled radiators, Heatkeepers will work just as effectively regardless of boiler type.

Can Heatkeepers be used behind electric or night storage radiators?

Yes, as long as there is a sufficient gap between the storage heater and the wall. The minimum recommended gap is 15mm to achieve the optimum flow of convected air. Please also refer to the fire safety section above.

Do Heatkeepers work with underfloor heating?

No — Heatkeeper Radiator Reflector Panels are specifically designed for use with wall-mounted radiators and are not suitable for underfloor heating systems.

I have a small floor-standing radiator — can I use Heatkeepers?

Yes — we have Mini Heatkeepers specifically designed to fit small and floor-standing radiators, ensuring optimal heat reflection and energy efficiency.

I have radiators that are wider than the panels — what do I do?

Simply measure and use part of an additional panel to cover the remaining width.

Sizing & Quantities

How many panels do I need?

The average radiator needs 2 to 2½ panels. Simply multiply the number of radiators in your home by 2 or 2½ and choose the appropriate pack size.

How big is each panel?

Each panel is 580mm high × 450mm wide × 8mm deep.

Where should I fit Heatkeepers in my house?

For optimal energy efficiency, we recommend fitting Heatkeeper panels to all radiators in your home, whether on internal or external walls. This maximises heat reflection and prevents heat loss throughout your home, leading to lower heating bills and a more comfortable living environment.

Energy Savings & Performance

How do Heatkeeper panels work?

Heatkeeper panels save energy and improve comfort in five key ways:

1. Reflecting heat: The panels bounce heat that would otherwise be lost through the wall back into the room.
2. Preventing heat loss: The reflective barrier stops unnecessary heat absorption through external walls.
3. Improving efficiency: Rooms reach the desired temperature faster, so the heating system cycles off sooner.
4. Enhancing comfort: Cold spots near exterior walls are minimised and overall thermal comfort is improved.
5. Easy installation: No complex tools or renovations required — just adhesive strips.

How much will Heatkeeper panels save me?

By using Heatkeeper panels, you can potentially save up to 20% on your heating costs. The panels are so efficient that they can pay for themselves within the first year of fitting.

Orders, Delivery & Returns

Where can I buy Heatkeepers?

1. Online: www.heatkeeper.co.uk
2. In store: 27 Phoenix Road, Crowther, Washington, Tyne & Wear NE38 0AD
3. Amazon and eBay: Heatkeeper panels are available on both marketplaces.
4. Lake Home & Leisure Store

What is your delivery policy?

We offer standard and express delivery options for UK orders, as well as international delivery. Costs vary based on size, weight, and delivery address. For full details, please refer to our Terms & Conditions or call us on 0191 415 1333.

What is your returns policy?

Your satisfaction is our priority. If you are not happy with your Heatkeeper panels for any reason, please contact us to arrange a return and we will issue a full refund.

Do you offer a guarantee or warranty?

Yes — all Heatkeeper panels are guaranteed for 10 years. We stand behind the quality and durability of our product.

Can I get a VAT receipt or invoice?

Yes — a VAT receipt is automatically included with every order. If you need a copy or a formal VAT invoice for business purposes, please contact us at 0191 415 1333 and we’ll be happy to help.