British Gas is urging homeowners to take proactive measures to prepare for the upcoming cold snap, emphasizing the importance of sealing letterboxes before Saturday morning. In an interview with Birmingham Live, British Gas engineer Joanna Flowers shared valuable insights on how proper sealing can significantly reduce heat loss and lower energy bills by up to £60 annually. She recommended simple solutions like self-adhesive foam strips around window frames and draught excluders to block gaps beneath doors. Additionally, she advised checking smaller openings, such as letterboxes and keyholes, which are quick fixes that make a substantial difference. The warning comes as British Gas anticipates 31,000 callouts next week, with Met Office forecasters predicting snow and freezing temperatures for Valentine's weekend. As extreme weather conditions put additional strain on home heating systems, British Gas is urging households to be prepared for potential heating breakdowns. Common issues like frozen pipes, boiler pressure drops, and timer resets can leave homes without heating. Ms. Flowers suggested that many of these problems can be resolved with simple checks at home, helping households get their systems back up and running quickly. Last winter, over 1.2 million customers sought assistance from British Gas engineers to fix broken boilers and restore heating and hot water. Ms. Flowers emphasized the importance of proactive measures, stating, 'While most people are planning a cosy Valentine's weekend, we're preparing for one of the busiest spells of the year. When freezing temperatures and snow are on the way, heating systems are pushed to work harder and for longer. If your heating stops working, start with a few simple checks. Make sure your thermostat and timer are set correctly, check that your boiler pressure is in the right range, and look for signs of a frozen condensate pipe if temperatures have dropped below zero. In many cases, these steps can get your heating back on without needing a callout.' The article concludes by inviting readers to share their thoughts and experiences in the comments section, encouraging a discussion on the effectiveness of these measures and the potential for differing opinions.