Gas is much cheaper than electricity if you are using it to heat the same amount of water. But some immersion heaters only heat water at the top part of the tank, so if that ‘sometimes only once a week’ demand for water is just for a small amount, the immersion heater could still be cheaper to run!
Beside this, are electric water heaters more expensive to operate?
Costs Of the two types of hot water heaters, electric costs less to purchase but costs more to run over time. … They also tend to be easier to install, so installation costs may also be less. But electricity costs more per month than the same amount of energy from natural gas.
Similarly one may ask, do gas or electric water heaters last longer?
For both gas and electric, tank water heaters last an average of 10 to 13 years, and tankless units last up to 20 years or longer. The average for electric heat pump water heaters is 12 to 15 years.
What is the cheapest way to heat water?
Usually natural gas is the cheapest way to heat water, followed by electricity, with propane being the most expensive.
Installing a gas water heater involves working with gas lines, which can be both dangerous and expensive. Electric water heaters are generally safer. Electric water heaters are not only efficient but also don’t have any fuel that could leak or explode. And they have no combustible byproducts.