Difference between smoke tube and water tube boiler.?

 SMOKE TUBE BOILER 

•  LOWER RATE OF EVAPORATION
• LOW PRESSURE BOILER 
• LESS COMPACT SIZE 
• GAS PASSES THROUGH TUBES 
• USED FOR LOW STEAM  DEMAND AREA 
• NORMAL QUALITY OF WATER CAN USE 
• MORE STORAGE CAPACITY OF STEAM.

WATER TUBE BOILER

• HIGH RATE OF EVAPORATION
• HIGH PRESSURE BOILER 
• COMPACT SIZE
• USED FOR HIGH DEMAND AREA
• WATER QUALITY SHOULD BE GOOD 
• LOW STEAM HOLDING CAPACITY.