Timer connected to water heater?

[Chuck Evans]

Originally Posted by mlarson

Not true. It either enters the cold inlet at the top which has a dip tube that leads to near the bottom of the tank or the modified drain valve assembly at the bottom.

Perhaps we are talking about different systems. I thought that you were responding to R Elliot's post #11 regarding circulating pump systems rather than the passive type. The pump driven recirc systems I am familiar with are hot supply to drain side loops.

[Michael R. Boyett]

Chuck...did you see post #30? There are a couple of different designs for recirc systems. I think I tend to see more hot supply to drain out also but I have run across the style I showed in post #30 a few times.

[Chuck Evans]

OK, I guess I don't encounter these under-sink add-on systems. So instead of waiting to flush the cold water from the hot water lines, when opening a hot faucet, they get to wait to flush the hot water from the cold lines when using the cold faucet.

What a deal!

I guess in TX it wouldn't really matter too much, because the water in the cold lines sitting in the hot attic is going to be about 130 F degrees anyway.

[Michael Larson]

Originally Posted by mboyett

Here's another recirculation design (note the use of the cold water side & the 'kit" David referred to):

Attachment 30890

Yes. That is when the pump is located at the farthest fixture with a crossover to he cold as the return.

[Michael Larson]

Originally Posted by cevans

I guess in TX it wouldn't really matter too much, because the water in the cold lines sitting in the hot attic is going to be about 130 F degrees anyway.

What a silly place for water lines and a water heater.



Oh Texas, I get it.