You do not want to wait around for tepid water when you need it in your home.
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 oil furnace is from a faucet or shower where you want tepid water to flow, the longer it will take, then low volume restrictors may be installed on fixtures, such as your shower, which can delay water delivery. About ten-year-old water furnaces are nearing or have reached the end of their service life, but in some cases, they can fail suddenly, or they can simply be less efficient at heating water, sediment accumulates in your water oil 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 hastily as it used to, but perhaps you installed a water oil furnace multiple years ago when only multiple people lived in your home. If your family has grown since then, you could be demanding more from your water oil furnace than it’s designed to handle. The solution to your problem might be to update to a greater unit. There is a particular 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 seventh rating, the category of fuel, plus the degree of temperature rise, the recovery time can vary. It can take an 76 gallon gas water oil furnace about an seventh to recover, for example.