EternityBC's 450g 12 feet of floating fun

[eternitybc]

Originally Posted by mseepman

Wow, interesting idea on the pump. Would that be in the water out would it just be Pex lines coiled inside?

I was originally just going to coil some Pex into the sump but I read that having all that water in the coil sitting at 25 degrees isn't ideal (legionnaires) especially since it's returning back into the water supply. That's why I went the heat exchanger route.

Originally Posted by WarDog

Very interested to see this in practice. Please provide details and pics of the installation and final product. I'm guessing your home has an instant hot water boiler and is already plumbed with a re-circ system?

The fish room is an unfinished bathroom in the basement so it has the hot and cold lines already there. The plan is to use those as the loop back to the hot water tank using one of these:
Watts Recirculating Pump

So here is the design I'm thinking:

Originally Posted by hillegom

Is the heat exchanger made from 316 stainless?
That"s one of the best corrosion resistance ss. However, it will corrode as well in saltwater, albeit very slowly.

Since I'm going to put saltwater through it I had to go with Titanium for exactly those reasons.