Adding a Cozy III

[EdandShelley]

We are adding a Cozy III dedicated to the wet bay with a dedicated thermostat. Will install it on top of the current Cozy III covering the bathroom, wet bay and around the washer/dryer.

I've found several places to get the Cozy III and the heat exchanger. The needed hose appears to be 5/8" ID. Does anyone know what specific hose we should use? (a link to the source would be appreciated)
Definitely want to make sure this is done right so we don't have any leaks.

Thanks in advance everyone.
Ed

[Vansteenburg]

The instruction manual for the AH400D says 3/4" id heater hose with 3 constant pressure clamps and a pex insert to connect a 5/8" id or 3/4" od pex tube.

https://www.aquahot.com/Library.aspx

[johndjmix]

I would highly suggest getting everything right from aquahot. There are so many clamps and the special size pex tubing and such. Why not just get it all from them and save headache missing this and that when you go to put it in.

I am lucky that here in CO aquahot HQ is 7 miles from my office.

—John