A doctor ordered an air-conditioner.
His was a small consulting room and the size was a little less than 10 feet by 10 feet.
Yes, a one ton air-conditioner was sufficient, was ordered and supplied by us.
The doctor complained that there was no cooling. Our representative visited the place
and he too was of the same opinion. We sent another air-conditioner. Still the same complaint!
My friend visited the place and when he carefully studied the whole place, he found out
One of the walls was a common wall and on the other side was a kitchen of a restaurant.
The stoves there were emanating a lot of heat and so the wall was becoming very hot.
The heat load required a 1.5 ton air-conditioner.
My friend explained this to the doctor who agreed to have a 1.5 ton air-conditioner installed.
The problem was solved.
When there is a problem, view it from all angles and look for the unusual.