if you have a circuit available that would be a big help..

i need to control a room temperature from 56-58 deg C...

circuit is a big help.. thank you

 

There are more than one way do do this. When you have selected a method, come back with specific questions.

It is not clear if you are designing a thermostat or a heater/furnace.

 

58° C? 136° F?

Kinda hot, isn't it?

There are a lot of commercial solutions (Omega Electronics comes to mind).

 

In a sealed room with good air circulation, an ordinary thermostat would work. Otherwise, a PID system might be in order.

What is the nature of the system? How much thermal hysteresis do you expect?

 

I'm curious if the OP meant the temperature he said. I checked, my digital thermostat only goes to 99°F.

 

Perhaps "ordinary" was a bad choice of words on my part. "Simple" may have been a more accurate adjective.

If the thermal hysteresis of the system is low enough, a simple thermostat will suffice. Larger thermal hysteresis will require PID.