Octopus Energy is backing a simple method by Martin Lewis that could help retain heat in your home
Octopus Energy is recommending UK households to adopt a ‘4pm rule’ as the weather gets colder and energy costs continue to soar. This guideline has previously gained attention after receiving the backing of Money Saving Expert (MSE) founder Martin Lewis, who suggests it can help maintain warmth and potentially lower bills, as reported by the Mirror.
He first touched on the subject on ITV’s The Martin Lewis Money Show several years ago, but with the cost of living crisis persistently affecting British homeowners, it remains relevant. Experts from the official MSE website have confirmed that while the show was broadcast in November 2022, “the tips still work”.
The trick involves sticking to a fixed time each day to keep the warmth in your home without heavily relying on heating. Outlining the method on its website, Octopus Energy said: “You’ll keep more heat in your home with less energy if you pull your blinds or curtains before it gets dark, up to 17% reduction in heat loss.”
It further stated: “Closing curtains in front of external doors can also help to block the cold out and trap the heat in.”
Clarifying the process, the energy provider said: “Whilst the sun is shining, keep curtains/blinds open to let in the free heat from the sun.
“When the sun sets, close curtains/blinds to keep the heat in and the cold out. Curtain liners (or even a shower curtain) can be added during the colder months to thicken existing curtains.”
From November 15 onwards, the sun sets between approximately 3.45pm and 4.25pm depending on where you are in the country. Experts suggest closing your curtains at around 4pm to keep warmth inside, which could mean you can delay putting the heating on.
This advice is similar to tips previously offered by Martin Lewis. Speaking to viewers, he said: “Use tactical curtains.” He was referring to energy-efficient curtains designed to retain heat – like thermal or lined ones.
He continued: “When the sun is shining, it is letting light and heat into the house, so you want the curtains open. When it gets dark, it’s not, so you want to keep the heat in by closing the curtains. I know we all know that, but doing it rigorously can help insulate, especially if you line it with a fleece. There are lots of tips online on how to do that, and really cheaply-do it yourself.”
Top curtains for keeping the heat in
The most effective curtains for keeping heat indoors are thermal-lined options crafted from substantial, weighty materials such as velvet or wool. These fabrics excel at preventing cold air entering through windows.
Opt for dense fabrics with a high thread count, including velvet, suede, or wool blends. Such materials naturally outperform lighter alternatives like silk or linen when it comes to heat retention.
The effectiveness of thermal curtains lies in their unique lining. It’s crucial to opt for curtains that boast a special thermal or blackout lining.
This lining typically comprises multiple layers of fabric, often with foam or a rubbery backing, which aids in trapping air and reducing heat loss.
For optimal results, ensure your curtains are a perfect fit for your window. They should extend a few inches beyond the window frame’s edges and reach all the way down to the floor.
This creates an effective seal, preventing cold air from entering the room. Installing a pelmet or valance at the top of the curtain rod can further enhance heat retention by preventing air from flowing over the top.
