Hot water immersion heater elements are generally rated at three or 6 Kilowatts (kW). Hot water cylinders/tanks come in many shapes, sizes and capacities, ranging from 40 to over four hundred+ litres in large homes. Running a bathtub will use about 60 – 80 litres of water. To estimate* how plenty a tank of warm water prices to warmness clearly input your tank length in litres and the immersion heater element energy rating (usually 3kW). If your heater is 6kW it will value the identical quantity but take half the time. Should you leave your immersion heater on 24/7? Heating water with electricity is steeply-priced when compared to gas or maybe oil. Leaving your immersion heater on all the time can be a waste of electricity. We might encouraged having a timer equipped – making hot water to be had to fit your life-style. Having a effectively sized warm water tank on your desires should assist lessen your bills. What can have an effect on the fee of electrical water heating? Check that your immersion heater is thermostatically controlled – this is very crucial – otherwise it’ll be overheating your water so that you can price greater. If your water is scalding warm, then it is able to not be working effectively. Having an insulated cylinder is crucial too, most modern-day warm water cylinders are pre-insulated. If yours is not, keep in mind buying an insulated jacket to hold the water warmer for longer, so you’ll use less kilowatts (cash!) to convey the water lower back as much as the specified temperature. Remember you need to warmness the water for your immersion heater to above 50°C to kill off bacteria. Can you get electricity efficient immersion warmers? Unfortunately now not, electric immersion heaters will consume the identical amount of electricity and produce the identical amount of thermal warmth, relative to electricity enter. Something that can affect their overall performance is limescale in hard-water areas. A lining of calcium carbonate (limescale) grows thicker over time at the heating elements of the immersion rod. If this turns into too thick, the warmth generated by means of the heater detail can’t be transferred into the encompassing water. This trapped heat builds up inside the immersion heater rod inflicting it to burn-out and in the end fail.