Chris...I have seen setups where they use a hot water storage tank from a boiler setup..about 100 gallons...and they circulate till temp is reached...there are things you need besides the coil...pump...aqua stat..air valve....
plus most do not use coils anymore in the stove...they use a Stainless block type heat exchanger...
I was told if water is not used for awhile...they may blow off relief valve..so place discharge wisely...lol
look at page 21 for basic setup....http://www.harmanstoves.com/doc/magnumstokerm.pdf
This link is broken, either the page no longer exists or there is some other issue like a typo.
see if that helps