I don t see why gas would be any different.
Dual water heater setup.
Lemonplumber fl unless you draw in cold water then the lower wants to kick in just before the circ sends tempered water back to the heater from the loop during day time timer use we have moved away from thermal clips on the circ and aqua stats and are using the 1 4 hour timers.
Dual water heater system troubleshoot we have a dual water heater system.
One tank set low like 25c the other set to 56c.
A dual element water heater uses two heating elements controlled by two separate thermostats.
Thermostat setting on dual element heater.
As with gas water heaters dual element electric water heaters feature a number of safety devices.
If the water within the tank reaches a dangerously high level a switch called a high limit switch will automatically cut the power to both elements.
Now scenario 2 i would do series but i would use the first tank as a warming tank in other words as the second water heater uses the hot water it will pull in the water that is pre.
If the high limit switch fails to activate a pressure relief valve typically located against.
The upper element heats the upper portion of.
Water will be drawn off of both water heaters so you will get about 80 gallons of hot water out of 2 50 gallon water heaters the would still be hot hopefully.
Now it my understanding that dual water heaters are supposed to be plumbed in parallel.
Many modern homes come with dual element water heaters.
Electric water heaters in series works very well i have mine setup this way.
So i put the new used 5 year old tank in filled it but didnt have the materials on hand to hook the exhaust up properly.
I just turn the power on the 2nd tank when we have company.
