As a standard immersion heater is 3KW, so it would take 2 hours to heat 100 Litres of water. After an hour and a half, it will only have reached about 53 degrees.....
Another common cause of heel and calf pain is Achilles Tendinitis. Symptoms are frequently described as an aching pain in the back of the lower leg and just above the heel. This sensation is typically worse after exercise and upon first waking up in the morning.
What are the causes and symptoms. Plantar fasciaâthe band of connective tissue on the bottom of your foot that stretches from the heel to the ball of your footâsupports your footâs arch. If this tissue becomes inflamed, youâll generally feel the pain in your heel. Eventually, hook-shaped calcium deposits, also known as bone or heel spurs, may form on your heel bone and cause further pain. Structural issues with the arch of your foot can lead to this cycle of inflammation, spur growth, and pain.