On demand heaters and radiant heat

Sol Hydronics

I have people who want me to hook up the on demand heater to radiant as well as domestic. The only drawing I can find is from Takagi and it sends all the cold water through the flat plate. Would anyone know of another way to plumb this. Thanks, mike

TonyS

I havent installed one yet

But I have been impressed with the standard Navien. I have been looking for the right job to install this

http://www.navienamerica.com/product/combi_01.aspx?skin=combi_01