Electric D.H.W.tank

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Old 01-06-14, 04:52 PM
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Electric D.H.W.tank

My friend has been using an electric hot water tank to supply heat to the in floor tubing of his garage. The system worked fine for six years and than began to blow up the heating elements. The fluid used for freeze protection is Plumbers anti freeze . Does any one have any suggestion as to why this is happening .
 
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Old 01-06-14, 06:33 PM
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The antifreeze may have decomposed in a manner resulting in deposits caking up on the elements. This retarded heat transfer to the circulating water and the elements overheated.

Has he drained the system yet and taken the elements out of the water tank for replacement and seen caked up deposits?

Or maybe a slab leak developed and all the water (antifreeze) left the system and the heater elements will burn out in minutes when run dry.
 

Last edited by AllanJ; 01-06-14 at 06:48 PM.
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Old 01-07-14, 05:01 AM
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Thanks for the reply , he has put an air eliminator on and checked the pressure to make sure it is full . It has burnt out several elements, I have suggested that he should replace the anti freeze with plain water to eliminate any issues with the anti freeze.
 
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Old 01-07-14, 05:04 AM
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electric hot water tank

I forgot to answer your question , no there was no build up of deposits on elements.
 
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Old 01-07-14, 05:30 AM
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Ph tested on the anti-freeze?

Different cheap supplier of heating elements?
 
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Old 01-07-14, 05:48 AM
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I just talked to my friend and he is going to replace the anti freeze with the proper glycol which should solve his problem. thanks for the help . I will get a sample and check the PH. and let you know.
 
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