dwelling units...

[sparky723]

when calculating dwelling units, if you use the standard method for a dwelling unit, and then use the optional method for the same unit, will the result ALWAYS be the same?

just a thought i had.

 

[nakulak]

nope .

 

[raider1]

The results rarely if ever match.

Usually the optional method will give you a lower calculated load.

Chris

 

[Npstewart]

definitely agree

 

[charlie b]

They approach the subject in two entirely different ways, so there is no reason to expect the same results. I think that the optional method would not have been created, unless there were an expectation that it would, at least sometimes, give a lower result. Every time I did both calculations, the optional method was the smaller answer.

 

[cowboyjwc]

That is why the optional method is used when adding AC or square footage. Most of the time it will keep you from having to do a service change.