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.
Plantar fasciitis is an inflammation at the point where the ligament inserts at the heel bone. The cause of the heel pain can be a combination of several factors: obesity, flat feet or high-arched feet, overuse, or a tendency to roll your feet inwards when you walk.Shoe disaster: No support, open back, worn-down heels.he cause of the heel pain can be a combination of several factors: obesity, flat feet or high-arched feet, overuse, or a tendency to roll your feet inwards when you walk. Shoe disaster: No support, open back, worn-down heels.