Two Non-Pressure 1000 gallon Tanks - Advice?

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CozyMan

Member
Apr 5, 2010
5
Wisconsin
www.cozyheat.net
Hey guys,
I need some expert advice. I have a customer who wants to install a BioMass-80 (pressurized boiler), running about 100' to two (2) 1000 gallon non-pressure tanks. Boiler outside, tanks inside. The system will also be connected to a gas boiler and radiant heat system (pressurized).
I'm kicking around some scenarios for him. If we wind coils of 1” copper through both tanks we will end up with incredible head. I could use some plate exchangers, but…..
Well, let me know your experience or your engineering.
Thanks so much,
Dave
 
Dave,
Why not use coils in the tank- supply the two tanks in parrallel, so as not to increase head. Say two or three coils in each tank.
 
CozyMan said:
...
I have a customer who wants to install a BioMass-80 (pressurized boiler), running about 100' to two (2) 1000 gallon non-pressure tanks. Boiler outside, tanks inside. The system will also be connected to a gas boiler and radiant heat system
...
Dave

Are these sealed tanks, and if so can they stand as much pressure as the column of water it would take to implement an atmospheric-pressure expansion cistern? It sure would be nice to avoid heat exchangers when a BioMass-80 putting out upwards of 250000 btu / hr is involved.

--ewd
 
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