Boiler is a self-contained appliance, specifically for heating fluids, in oklahoma under international building code, any fluid heating appliance, with 500,000 BTU input, or greater is labeled a boiler and is governed by specific rules.
A pressure vessel is a container designed to hold gas or liquid at a designed pressure and temperature, different from the ambient temperature or pressure .
Both will have a rating plate stamped, with safe operating perimeters
typical a boiler has a fuel burning section as part of the appliance.
A pressure vessel may also be used to heat or cool its contents through a closed loop heat exchanger.
Both devices for Safety, must have a temperature pressure relive device..These devices improperly installed have been at fault for many explosions ..hope that helps .
A pressure vessel is a container designed to hold gas or liquid at a designed pressure and temperature, different from the ambient temperature or pressure .
Both will have a rating plate stamped, with safe operating perimeters
typical a boiler has a fuel burning section as part of the appliance.
A pressure vessel may also be used to heat or cool its contents through a closed loop heat exchanger.
Both devices for Safety, must have a temperature pressure relive device..These devices improperly installed have been at fault for many explosions ..hope that helps .