How To Set Upper And Lower Thermostats On Water Heater

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Thermostat setting on dual-element heater
Author: nlt99 (AZ) Howdy! I apologize if this is an sometime discipline... I searched the forum before submitting this and could non find an answer. We have a dual-chemical element electrical h2o heater that was in this house when we bought it. I checked the ii thermostats today and the upper was fix for xc degrees, the lower set for 125 degrees. Should they normally both be ready at the aforementioned temperature? If not, how should they be set, and why? Thanks for your aid! Nick
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Thermostat setting on dual-element heater

Author: nlt99 (AZ)

Howdy!
I apologize if this is an sometime discipline... I searched the forum before submitting this and could non find an answer.

We have a dual-chemical element electrical h2o heater that was in this house when we bought it. I checked the ii thermostats today and the upper was fix for xc degrees, the lower set for 125 degrees. Should they normally both be ready at the aforementioned temperature? If not, how should they be set, and why?

Thanks for your aid! Nick

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Re: Thermostat setting on dual-element heater
Author: hj (AZ) BOth at the same temperature. The upper one, however, is ineffective if information technology ready lower than the bottom i, until the tank starts to run out of hot water. And then the upper element starts to work, but will Simply heat the water to the thermostat's setting, then it transfers to the bottom one to cease heating the h2o in the tank. If the upper one is set up at 90 degrees, for all applied purposes, you lot would NEVER notice it working because fifty-fifty 90 degree water would feel cold.
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Re: Thermostat setting on dual-element heater

Author: hj (AZ)

BOth at the same temperature. The upper one, however, is ineffective if information technology ready lower than the bottom i, until the tank starts to run out of hot water. And then the upper element starts to work, but will Simply heat the water to the thermostat's setting, then it transfers to the bottom one to cease heating the h2o in the tank. If the upper one is set up at 90 degrees, for all applied purposes, you lot would NEVER notice it working because fifty-fifty 90 degree water would feel cold.

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Re: Thermostat setting on dual-element heater
Author: Shoemaker2 (MA) Set them both to 135-140 f or there about.
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Re: Thermostat setting on dual-element heater
Author: nlt99 (AZ) 135-140 seems awfully loftier. I'll check again, simply I remember max on my thermostats is 125 Thank you for your replies!!! Nick
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Re: Thermostat setting on dual-element heater
Author: dlh (TX) actually the max will probably be 140. most people adopt them set to about 115-120 - - - - - - - PLUMBERS "Protecting The Health Of The Nation"
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Re: Thermostat setting on dual-element heater
Author: hj (AZ) Max is 150 or 160, only since they are often letters instead of numbers you may have to approximate at what the setting is.
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Re: Thermostat setting on dual-chemical element heater
Writer: nlt99 (AZ) Yep, I stand corrected... upon rechecking, I call back the max on these stat's is 150 but with a detent at 125 (I recently had both knees replaced and it's difficult to get down low enough to see the whole themostat dial). Your suggested setting sounds more than in line with what I recollect reading somewhere that 120 or so should exist max for personal prophylactic reasons. I'll try to prepare them both at that. Thanks once more, I really appreciate your assistance since our last heater was gas-fired. Nick
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Re: Thermostat setting on dual-chemical element heater

Writer: nlt99 (AZ)

Yep, I stand corrected... upon rechecking, I call back the max on these stat's is 150 but with a detent at 125 (I recently had both knees replaced and it's difficult to get down low enough to see the whole themostat dial). Your suggested setting sounds more than in line with what I recollect reading somewhere that 120 or so should exist max for personal prophylactic reasons. I'll try to prepare them both at that.

Thanks once more, I really appreciate your assistance since our last heater was gas-fired.

Nick

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Re: Thermostat setting on dual-element heater
Author: rjjr38 (ME) Plumbing Code is 120 degrees for residential apply. Commercial apply is 140 degrees.
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Re: Thermostat setting on dual-element heater
Author: nlt99 (AZ) Thank you for that last annotate, and for all the rest as well... big help! Nick
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Re: Thermostat setting on dual-element heater
Author: LemonPlumber (FL) Come across more if y'all have a circulated hot system.Otherwise keep them the same just bank check the actual hot delivered temp before ruling out upping the set temp to 140.
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Re: Thermostat setting on dual-element heater
Author: hj (AZ) Circulation system or not, the upper one ONLY operates when the heater is most out of water, and the lower it is prepare, the cooler the water will get before it turns on. Normally it will NOT be able to keep the water hot, only information technology volition practice the best it can depending on the water period volume. The only thing a circulation system volition do is go along the entire tank at the temperature of whichever thermostat is at the higher setting.
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Re: Thermostat setting on dual-element heater

Author: hj (AZ)

Circulation system or not, the upper one ONLY operates when the heater is most out of water, and the lower it is prepare, the cooler the water will get before it turns on. Normally it will NOT be able to keep the water hot, only information technology volition practice the best it can depending on the water period volume. The only thing a circulation system volition do is go along the entire tank at the temperature of whichever thermostat is at the higher setting.

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Re: Thermostat setting on dual-chemical element heater
Author: LemonPlumber (FL) HJ I practise gear up circ systems stats upper x% college than the lower.seems to keep energy use down ,on day time systems.Only drain tee render these.
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Re: Thermostat setting on dual-element heater
Author: hj (AZ) With a circulation system the water in the tank is "stirred up" continually, then it the unabridged tank will be filled with water at whichever thermostat is set the highest.
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Re: Thermostat setting on dual-element heater
Author: LemonPlumber (FL) Unless you lot draw in cold water.Then the lower wants to boot in just earlier the circ sends tempered water dorsum to the heater from the loop.during mean solar day fourth dimension /timer utilize.we accept moved away from thermal clips on the circ and aqua stats and are using the 1/4 hour timers.
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