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.....
Symptoms & Signs. Pain in the heel can result from a number of factors. Abnormalities of the skin, nerves, bones, blood vessels, and soft tissues of the heel can all result in pain. Because of walking and daily movement, we are always at risk for injury or trauma to the heel area. Common causes of pain in the heel include blisters and corns. Plantar fasciitis, inflammation of the bowstring-like tissue in the sole of the foot stretching from the heel to the front of the foot, is one condition commonly associated with heel pain.
Heel pain is an extremely common complaint, and there are several common causes. It is important to make an accurate diagnosis of the cause of your symptoms so that appropriate treatment can be directed at the cause. Plantar Fasciitis. Plantar fasciitis is the most common condition that causes heel pain. Plantar fasciitis is due to irritation and inflammation of the tight tissue that forms the arch of the foot. Common symptoms of plantar fasciitis include heel pain with prolonged walking and standing.