Ever heard of a Severance Hot Water add-on boiler system ??

[v-8 volvo]

Just wondering if anyone has heard of one of these. I'm trying to help my girlfriend cut heating costs and found one of these boilers. It's a top loading, coil tube type made by "The Energy Forum" in Norwood, MA. Dimensions are about 4 foot high x3 ft x 3 ft. Unit appears to be in good condition. Wondering if it's worth messing with. I need to make a decision on this unit by tomorrow morning. I would be tying the unit into the existing Burnham V7.
I can't afford one of the gassification units, but this thing sounded like it might work.
Thanks in advance...

 

[v-8 volvo]

Do I need a storage tank?

Would I need to use a storage tank for this setup or is the capacity of the Burnham V7 sufficient? The house is a 3 BR Colonial that is very well insulated.
I am new to the wood boiler scene and will rely on whatever advice you guys give me. The woman selling this unit is waiting to hear from me, so somebody please give me a go or no go.
Thanks