We will go there in late April. I assume that we do not need any air-conditioning in April. Do we need a heater in April and does your room have a heater?
Each room has an individual A/C unit. These appeared to me to be high-end so I expect they will heat as well as cool. As it was over 100 degrees when I was there, I did not test the heating. I agree with the comment about the great attention the manager pays to his customers. He will be sure to make you comfortable.
Get an answer from Hotel Nazar staff and past guests.