Searching for a multiuse heat storage vessel

[tschulz]

Does anyone have knowledge of a US company that manufactures a pressurized heat storage vessel that has 2 heat transfer coils? I'm trying to engineer a system for DHW from a vessel that would be used w/ a wood boiler in the winter and a solar collector at more temperate times of the year. I can find products that are manufactured in Finland (http://www.akvaterm.fi/) but they have no domestic distributor. It also must fit through a 32" door so maximum width w/o insulation needs to be under 30".


Central MN
Replacing a 28 year old wood boiler w/ gasification unit.

 

[karl]

Solar hot water heaters fit the bill. It might be hard finding one with two coils in it, most only have one.

They also make add on heat exchangers that may work for you.