How much fuel should a properly sized oil storage tank hold? ...

[joblessjake]

How much fuel should a properly sized oil storage tank hold?
 
  What will be an ideal response?

Question 2

List the three types of air cooled condensers and briefly explain the difference between them.
 
  What will be an ideal response?

[Tabitha_2016]

Answer to Question 1

A properly sized tank should supply about one third of the expected annual fuel consumption. As an example, a 275 gallon tank filled three times a year would be an appropriate size for an annual consumption of 825 gallons.

Answer to Question 2

Natural draft  does not use a fan. Works by natural convection only. Induced draft  uses a fan to suck air across the coil.
Forced draft  uses a fan to blow air across the coil

[joblessjake]

Thanks for the timely response, appreciate it

[anyusername12131]

Gracias!