Seems to me that it would depend on the details. If the store just happens to be cooled because the pipes run closely by the store, then I'd say it's on the bre

Seems to me that it would depend on the details. If the store just happens to be cooled because the pipes run closely by the store, then I'd say it's on the brewery to insulate the pipes. If the store rigged up something specifically to dump their heat into the pipes, then surely the legality would depend on how the property rights work for pipes running through the ground.