DX buffer tank?

Jolly Bodger

I'm building a geothermal HP plant to feed my infloor heat. A water to water heat pump will still need a buffer tank. Does anyone know of a buffer tank with a DX coil in it? That would save me on pump and the power to run it. 2 ton HP with 40 gallon buffer.

STEVEusaPA

Wonder if this is good...
https://www.bdmfginc.com/upload/HSS_INSTALL.pdf

Jolly Bodger

@STEVEusaPA thanks, but this is the conventional way of doing it. I have parts to build my own HP and I am wondering if putting the DX coil in the tank, instead of a separate heat exchanger that is pumped to a tank, is out there. I have some that are this way for my commercial process chillers. But that is chilled, and overkill for a residential system.