Should both thermostats on water heater?

The majority of electric water heaters have two thermostats: an upper and a lower, located under two control panels. To ensure your electric water heater works as efficiently as possible, you should set both of the thermostats at the same temperature.

Why are dual water heaters plumbed in series?

“That the two water heaters could be plumbed in series to improve efficiency. (one tank set low, like 25c, the other set to 56c). He said that they would have been plumbed in series by the builder, and he’s wasn’t not sure why these ones are in parallel.

Is it better to add a second water heater?

If you want to increase storage capacity, it would be better to just install a storage tank with a circulator tied back into the single water heater to maintain the hot water temperature in the storage tank. Adding a 2nd water heater to do what a storage tank could do, would be more work with gas and flues that you need to do.

What’s the difference between parallel and series water heaters?

Water heaters in parallel are for separate zones. Water heaters in series are to increase capacity. As said above, install the electric water heater downstream of the gas and lower its temperature set point below the gas heater so it doesn’t come on as much. (You still will have significant standby loss.

Can you run two 50 gallon water heaters in parallel?

If I installed two 50 gallon tanks in parallel, during times of low usage could I not turn off the water to one and just let the pilot burn (or turn off the gas as well). Oh, also turn off the hot water outlet. Then, when I’ve a houseful of people using three showers I could just reconnect and fire up the second of the heaters.

Can you still use two series water heaters?

You can still use two water heaters in series and keep the second one at a lower temperature. Once the bacteria gets above 50C it will kill off any bacteria from the other tank. dandersen (David Andersen, TN HI# 40) January 15, 2015, 2:35pm

How much does it cost to add a second water heater?

Provided that the existing water heater is relatively new and functions properly, we often recommend adding a second heater and coupling the two to double the supply capacity. This solution averages $700, a substantial savings over the cost of a stand-alone installation.

How many Watts Does a Rheem medium water heater use?

The Rheem Performance 40 Gal. Electric medium water heater provides an ample supply of hot water for households with 2 to 4 people. This unit comes with two 4500-Watt elements and an automatic thermostat which keeps the water at the desired temperature. A 240-Volt electrical connection is required for installation.