You should check something if you are thinking of painting your radiator
A heating expert has set the record straight on what is the best colour radiator to conduct heat. You may think it’s a good idea to paint the appliance black but specialists at paint retailer Ronseal say this is not the most important factor. Senior brand manager Jimmy Englezos issued a word of caution, saying the colour of your radiator is not necessarily the key factor for heating efficiency.
He said: “A radiator’s heat output is actually more manipulated by the reflectiveness of its paint finish. Shiny surfaces such as chrome or stainless steel will reduce its overall heat output since the shinier surface reduces its ability to transfer heat to the surrounding air.”
The expert said there is some reason in going for a dark colour but the difference may be very small. He explained: “Matt finishes can greatly improve a radiator’s efficiency and heat output, with black being the most efficient colour choice since it absorbs all light wavelengths before converting them into other forms of energy, in this case, heat.
“However, the specific change in heat output between matte black and other matte colours e.g., white radiator paint is only around 1 percent. So don’t feel like you have to stick to black to get the maximum efficiency.”
Using the right type of paint
Mr Englezos shared another warning about what paint to go for if you want to change the colour of your radiator. He said: “It’s important to use the correct type of paint that is suitable for use on metalwork and can withstand temperature changes. Make sure to consult the manufacturer’s information to check if the paint can be used on radiators.
“Be careful not to use regular gloss paint as it’s mostly made up of acrylic latex water-based paint, meaning the constant high and low temperatures will result in the paint flaking and peeling. Standard emulsion paint should also not be used as it can be prone to discoloration.”
Matthew Sheeran, external relations manager at debt advice group Money Wellness, also shared some tips around how to use your radiators for maximum efficiency. He said: “There’s been a lot of debate about whether putting used crisp packets behind radiators helps save on energy bills.
“Regardless of opinion, the principle works – reflective panels push heat back into the room. And regularly bleeding your radiators ensures they heat properly too.” He had some other practical tips for changes around the home that can save on your energy bills.
The expert said: “You could try layering up indoors with thermals, socks, jumpers, and blankets to slash your energy usage. Hot water bottles and heated throws can also help.”
If you are struggling to pay the bills, help is available. Mr Sheeran said: “Get help before it becomes a problem. Most energy providers offer grants or hardship schemes. And you might be eligible for the Warm Home Discount or local council support from the Household Support Fund.”
