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re: Point of Use vs. Recirculating Pump for Hot Water?

Posted on 11/11/14 at 9:07 am to
Posted by Napoleon
Kenna
Member since Dec 2007
69350 posts
Posted on 11/11/14 at 9:07 am to
how long is a long time?
This is the downside of tankless heaters.
Most would add in a point of use, I'm less familiar with recirculating pumps. But if it keeps the water always hot in the pipes that will be very expensive.
Posted by Quigley
Down Under
Member since Jul 2009
4007 posts
Posted on 11/11/14 at 9:19 am to
It's about 3-4 minutes for the kitchen. Not forever, but much longer than it takes on the other side of the house. On the side closest to the tankless they get hot water almost instantaneously. I'm leaning towards point of use for the reason you pointed out and I'm concerned a recirculating may void the warranty on their tankless, but that's just a guess
Posted by Scrowe
Louisiana
Member since Mar 2010
2926 posts
Posted on 11/11/14 at 10:33 am to
quote:

how long is a long time? This is the downside of tankless heaters.


Possibly 5-10 seconds longer than having a tank but the benefit of endless hot water. Having the right size tankless is a huge problem for many where they want to save money on the front end and cut corners with a smaller unit.

Having long runs regardless of what kind of hot water heater you have will take time to get hot water to them.
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