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Old 09-02-2012, 10:42 AM   #1
DAZ
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hot water heater temp adjustment

Can someone guide me on how to adjust the water temp on the hot water heater...I have a lacrosse unit with a gc6aa-10e hwh. Please!
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Old 09-02-2012, 10:45 AM   #2
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Most RV water heater thermostats are set from the factory, and are non adjustable. You may be able to switch out the hi-limit switch....not sure.

Do you want your water hotter or colder ?? The water is hotter than your typical home water heater because you only have 6 gallons of water to mix with the cold water.
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Old 09-02-2012, 11:00 AM   #3
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...The water is hotter than your typical home water heater because you only have a 6 gallon tank.
I think you are in error on this, the capacity of the tank has nothing to do with the temperature of the water inside. Most home water heaters have an adjustable temperature control and can be adjusted to a much higher temperature than an rv water heater. I don't know what an rv heater is set to, but would guess it is around 120 to 140.
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Old 09-02-2012, 11:05 AM   #4
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I think you are in error on this, the capacity of the tank has nothing to do with the temperature of the water inside. Most home water heaters have an adjustable temperature control and can be adjusted to a much higher temperature than an rv water heater. I don't know what an rv heater is set to, but would guess it is around 120 to 140.
I did not mean that the temperature is higher because of the volume.....I could maybe have worded that differently. The temperatures are higher because you only have x number of gallons to mix with cold water at the shower head. If the temperature in the water heater is lower, then you would use more hot water in the shower mixed with cold water to get the temperature comfortable, possible running out of hot water. Since RV water heaters typically have hotter hi-limit switches, you are using more cold water and less hot water to get that same comfortable water temperature, lessening the likely hood of running out of hot water.....if all that makes sense.
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Old 09-02-2012, 11:37 AM   #5
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Neil, I have done some rewording to both of my posts to make them a little better to understand.....hopefully.
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Old 09-02-2012, 11:43 AM   #6
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I did not mean that the temperature is higher because of the volume.....I could maybe have worded that differently. The temperatures are higher because you only have x number of gallons to mix with cold water at the shower head. If the temperature in the water heater is lower, then you would use more hot water in the shower mixed with cold water to get the temperature comfortable, possible running out of hot water. Since RV water heaters typically have hotter hi-limit switches, you are using more cold water and less hot water to get that same comfortable water temperature, lessening the likely hood of running out of hot water.....if all that makes sense.
Agree!
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Old 09-02-2012, 11:46 AM   #7
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Looking at the Atwood catalog it appears that the Temp is fixed, but they offer an adjustable thermostat as an option.
Attached Files
File Type: pdf waterheater.pdf (977.6 KB, 519 views)
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Old 09-02-2012, 12:23 PM   #8
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Can someone guide me on how to adjust the water temp on the hot water heater...I have a lacrosse unit with a gc6aa-10e hwh. Please!
DAZ, you never indicated if your water is not warm enough, or 2 hot. If it is not warm enough, it could be something simple like your bypass valves being set incorrectly.
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Old 09-02-2012, 01:39 PM   #9
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Can someone guide me on how to adjust the water temp on the hot water heater...I have a lacrosse unit with a gc6aa-10e hwh. Please!
Thanks everyone, I was able to figure it out...you can adjust the temp at one of valves attached to the hot water heater and the rest of the plumbing, looks like the hot water line out has a intake of cold-water...the more cold water you let through the less hot the water comes out at the sink(s)(obviously) careful if you close the valve completely, the water comes out very hot.
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Old 09-02-2012, 01:48 PM   #10
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Thanks everyone, I was able to figure it out...you can adjust the temp at one of valves attached to the hot water heater and the rest of the plumbing, looks like the hot water line out has a intake of cold-water...the more cold water you let through the less hot the water comes out at the sink(s)(obviously) careful if you close the valve completely, the water comes out very hot.
The intake valve and the outlet valves should be full open at all times except when winterizing.
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