Rebbetzin Kannievsky a”h never wanted air conditioning in her hot house in Israel because she considered it a luxery and didn’t want the people that came to her house everyday to see the air conditoning and think, “If Rebbetzin Kannievsky has one then i must need one” She never wanted to cause jealousy and only used the simplest necessities.
Despite all this, the minute she heard from someone that one of her assistants was having a very hard time working in the house because of the heat, the Rebbetzin immediatly bought the air conditioning and apologized deeply to her assistant.
If her requests led to the inconvienience of others, she always changed them!
*i think when she did get the air conditioning, she made sure to put in the diningroom where her husband learned in order to help him