Financial guru Martin Lewis has issued crucial winter advice to UK households struggling with soaring energy costs, emphasising a simple yet effective "4pm curtain rule" that could significantly reduce heating bills.
The Rigorous 4pm Strategy
The Money Saving Expert founder recommends being disciplined about closing curtains as darkness falls, specifically around 4pm during November. This timing coincides with sunset occurring at approximately 4:10pm in London on November 15, becoming progressively earlier towards 3:55pm by month's end.
Speaking on his ITV show, Lewis explained the science behind tactical curtain usage: "When the sun is shining, it's 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."
Maximising Insulation Effectiveness
Lewis emphasises that while most people understand this basic principle, implementing it "rigorously" makes the real difference. His team at MoneySavingExpert confirms that advice originally shared in November 2022 remains completely relevant despite recent Ofgem price cap changes.
The financial expert specifically recommends energy-efficient thermal or lined curtains for optimal insulation. For those on tighter budgets, he suggests a DIY approach: lining existing curtains with inexpensive fleece blankets, while crucially ensuring any added material is fire-resistant.
These fleece-lined curtains work by trapping insulating air layers, reducing heat transfer through convection, conduction, and radiation principles. The fleece creates air pockets similar to winter coats, providing enhanced warmth retention.
Broader Energy-Saving Philosophy
This curtain strategy forms part of Lewis's comprehensive energy-saving guidance available on his website. Additional recommendations include placing reflective panels behind radiators and addressing draughts throughout properties.
Lewis often promotes his cost-saving mantra: "Heat the human, not the home." This philosophy encourages using personal heating methods rather than expensive central heating, particularly when stationary in only a couple of rooms.
Households can find suitable thermal curtains at numerous retailers including Dunelm, Argos, The Range, B&Q, and Tesco. As winter approaches and energy prices remain high, these practical tips offer welcome relief for budget-conscious consumers across Britain.
