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Old 08-01-2016, 09:37 AM
 
Location: Cypress, CA
936 posts, read 2,079,945 times
Reputation: 1162

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I have two warm spots on the tile floor in my house. One spot is in the kitchen, near the sink. One spot is in the half bath. Is it hot water leakage? Or it is just normal hot water pipe causing temperature to be higher?

The previous homeowner told me that my hot water system has a recirculation system. I don't know if this is relevant at all.

Thanks,
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Old 08-01-2016, 09:54 AM
 
Location: Rural Michigan
6,343 posts, read 14,676,901 times
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If you're on a slab, a warm spot could be a leak. The easiest way to tell is to make sure all the water-using appliances are "off" & go look at the water meter at the street. If the dial is moving & no water is being used, you have a leak.
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Old 08-01-2016, 10:16 AM
 
Location: Cypress, CA
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Yes, I have concrete slab. I will check the water meter later today. Thank you.
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Old 08-01-2016, 01:11 PM
 
Location: Morrisville, NC
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A recirculating system that constantly recirculates a hot water loop so there is more or less instant warm or hot water at faucets far from the actual water heater? If that were leaking, you could well have the posts you are talking about. You can turn off the pump and see if the warm spots go away in addition to the checks previously mentioned. You can also use a stethoscope sometimes to hear the leak though it may be more difficult with the constant running of the recirc pump. There are usually one ore more leak detection companies in your area that can check for you as well.
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Old 08-01-2016, 01:19 PM
 
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Hot water has to get to your designated outlets somehow. Some of your lines are close to the surface of the slab. Enjoy warm feet in winter.
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Old 08-01-2016, 06:22 PM
 
Location: WMHT
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Given the description, almost have to wonder if it's intentional?
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Old 08-01-2016, 07:14 PM
 
Location: Morrisville, NC
9,144 posts, read 14,753,437 times
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Quote:
Originally Posted by Threestep View Post
Hot water has to get to your designated outlets somehow. Some of your lines are close to the surface of the slab. Enjoy warm feet in winter.
A combination of this and gaps in the insulation could well be why as well, especially with a recirc system.
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Old 08-02-2016, 12:08 PM
 
Location: Cypress, CA
936 posts, read 2,079,945 times
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I asked my wife not to use any water and sat and watched the water meter. It didn't budge for 20 minutes. I also discovered more warm spots on the second floor (wood). I think it is unlikely that any leakage on the second floor is not quickly shown through the ceiling.

I will watch my water bill closely. And check the water meter for a longer period of time. May be from midnight to 6AM.
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Old 08-02-2016, 03:05 PM
 
Location: Round Rock, Texas
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It could be gas lines. We have some hot areas and it is due to gas pipes running through.
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Old 08-02-2016, 04:29 PM
 
17,563 posts, read 15,226,764 times
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Quote:
Originally Posted by jimmybirdie View Post
I asked my wife not to use any water and sat and watched the water meter. It didn't budge for 20 minutes. I also discovered more warm spots on the second floor (wood). I think it is unlikely that any leakage on the second floor is not quickly shown through the ceiling.

I will watch my water bill closely. And check the water meter for a longer period of time. May be from midnight to 6AM.
You don't have a dog, do you?

I found the same thing and it started freaking me out then realized that the dog had changed her favorite spot to have a laydown in the summertime to the tile floor.
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