Heating large tanks with your gas hot water heater. Save 40% on energy cost!

justingraham

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Not enough led??

I just ment he ran his hot water to heat exchanger is copper pipe I have a long run so it will get expensive so I was hoping I could run that in pex but not risk anything
Pex led was supposed to be pex
Yes you can use pex but I can’t as I can’t fit enough pex in my sump to make the switch worth it
 
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TomLi

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Pex led was supposed to be pex
Yes you can use pex but I can’t as I can’t fit enough pex in my sump to make the switch worth it

Oh ok gotcha but I wasn't putting the pex in my sump just wanted to use pex from hot water heater to my heat exchanger and didn't want to risk the growth of legonilla
 

mrpizzaface

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I would assume that you could easily adapt them to a more standard fitting- I believe they are just flair nuts
How have the titanium heat exchangers held up. I think I heard somewhere that @Terence had his fail, and ended up with pex in his sump. I would like to do this, but am afraid of ebay heat exchangers failing.
 

Blue Carbon Reefing

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Mine is holding up perfectly still after about 2 years. After seeing DBR's update after he took it apart after 2 years and it looked like new I wasn't in a hurry to take mine apart to clean. I will be doing it in the next few months but I anticipate it to look brand new.
 
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DBR_Reef

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How have the titanium heat exchangers held up. I think I heard somewhere that @Terence had his fail, and ended up with pex in his sump. I would like to do this, but am afraid of ebay heat exchangers failing.
Yeah, it looked brand new after 2 years. I’ve also done icp test and saw no metals, including titanium
 

mdc860

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Mine is holding up perfectly still after about 2 years. After seeing DBR's update after he took it apart after 2 years and it looked like new I wasn't in a hurry to take mine apart to clean. I will be doing it in the next few months but I anticipate it to look brand new.
Another plus is that after a water change, the coil warms up the water in the sump quickly, so that the temperature is right before I send the sump water back Through the system
 

Matt groves

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im not seeing what pump people are using for the tank side to get water back from the ex-changer to the tank- somewhere i read about head loss through the ex-changer being high--i under stand the distance from tank makes a difference just trying to see how long of runs people have and what pump is corresponding with it
 

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