Heating and hot water accounts for about half of a typical home’s energy bills. An efficient and well-maintained heating system can make a noticeable difference in terms of energy usage and cost savings. 
- Hot water should be stored at least at 60°C.  This is due to the risk of legionella bacteria growing in water stored below this temperature.    
- Keep your shower time brief. According to the Energy Saving Trust, replacing a single bath each week with a 5-minute shower can help save up to £20 on energy bills and up to £25 on water bills each year.