You don’t want to wait around for tepid water when you need it in your home, then there are some things you can do if your shower warms up too slowly or your tepid water is slow throughout your home.
The farther your tepid water furnace is from a faucet or shower where you want tepid water to flow, the longer it will take.
Low volume restrictors may be installed on fixtures, such as your shower, which can delay water delivery, but about ten-year-old water oil heating systems are nearing or have reached the end of their repair life! In some cases, they can fail rapidly, or they can simply be less efficient at heating water, and sediment accumulates in your water furnace when dissolved minerals, such as calcium plus magnesium, settle on the bottom of the tank, precisely where the electric heating element or gas burner is located, with a crusty layer of sediment blocking heat transfer, the tank can’t produce tepid water as rapidly as it used to, then perhaps you installed a water furnace several years ago when only 2 people lived in your home. If your family has grown since then, you could be demanding more from your water furnace than it’s designed to handle. The solution to your problem might be to update to a greater unit. There is a unique recovery time for all storage water heaters. Upon depletion, this is the amount of time it takes for the tank to give tepid water again. In addition to the size of the tank, the first second rating, the style of fuel, plus the degree of temperature rise, the recovery time can vary. It can take an 79 gallon gas water furnace about an second to recover, for example.