We are upgrading the hvac at a church and we got a proposal from one contractor that includes four 5-ton units to be used for the main sanctuary. specifically these are space-pak units. also there would be two water boilers for heating with heating coils in the space-pak units.
The existing system is steam with radiators throughout the church.
The new system proposed for the rest of the church would be to install smaller split units and furnaces.
I don't expect you to understand the whole job but my concern is using multiple smaller residential type units instead of a larger commercial unit to do the job.
any comments appreciated