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Old 09-01-2005, 06:35 PM   #1
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Recirculating hot water


Hi all,

I'm new to the site. Looks like it will be real informative.

We had a new home built about 1.5 years ago. It has 2 hot water heaters in the basement. They are some distance away from the master bathroom so they installed a recirculating line so we would have instant hot water in the bathroom. It has worked great for about a year but lately we've noticed it takes a long time to get warm water. Someone told me it may need bled again. I've tried but was unsuccessful. Can anyone shed some light on this?

Thanks,

Mike

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Old 09-02-2005, 12:20 AM   #2
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Recirculating hot water


Many recirc systems use pumps. Have you checked that?

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Old 09-02-2005, 10:05 AM   #3
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Recirculating hot water


Quote:
Originally Posted by Teetorbilt
Many recirc systems use pumps. Have you checked that?
I'm pretty sure it doesn't use a pump. At least I've never seen one or heard it run. Basically one insulated pipe runs out the top of one heater to the bathrooms then back to the bottom of the other heater.

Thanks,

mike
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Old 09-02-2005, 11:40 AM   #4
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Recirculating hot water


without a pump, or an open water line, there is nothing to move the water. I'm with teetor. Check for a pump somewhere.
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Old 09-02-2005, 01:25 PM   #5
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Recirculating hot water


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Originally Posted by jbfan
without a pump, or an open water line, there is nothing to move the water. I'm with teetor. Check for a pump somewhere.
Ok, I'll look into it.

Thanks,

mike
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Old 09-02-2005, 03:04 PM   #6
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Recirculating hot water


It COULD be a convection system but I doubt that it would quit working that quickly. Look for anything with wires running to it. I have seen them under sinks and other places.
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Old 09-02-2005, 10:19 PM   #7
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Recirculating hot water


Sounds like you have a gravity recirc line which does not require a pump. The water line at the bottom of the heater should have a check valve on the horizontal that needs to be cleaned or replaced.
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Old 09-06-2005, 10:36 AM   #8
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Recirculating hot water


I'm pretty sure it is a gravity line. I do not see any wires or pump. I think I saw the check valve you're talking about. I'll give it a shot.

Thanks a lot!

mike


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Originally Posted by plumguy
Sounds like you have a gravity recirc line which does not require a pump. The water line at the bottom of the heater should have a check valve on the horizontal that needs to be cleaned or replaced.
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Old 09-07-2005, 09:29 AM   #9
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Recirculating hot water


You solved my problem plumguy! I checked the valve last night & sure enough it was stuck with a little corrosion & such. I cleaned it & we had instant hot water this morning. Thanks so much & thanks to everyone for replying.

-mike


Quote:
Originally Posted by plumguy
Sounds like you have a gravity recirc line which does not require a pump. The water line at the bottom of the heater should have a check valve on the horizontal that needs to be cleaned or replaced.
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Old 09-07-2005, 10:03 AM   #10
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Recirculating hot water


plumguy explain to a dumb ole electrician how this system works.
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Old 09-07-2005, 03:04 PM   #11
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Recirculating hot water


Quote:
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plumguy explain to a dumb ole electrician how this system works.
If you do a search out here, you might find my explanation. If not, do a google search and you should pull up some articles on it!! I don't have the time right now, otherwise I would explain it too you!! Let me know what you come up with!!

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