http://stackoverflow.com/questions/36013265/stop-co-routine-

using UnityEngine;
using System.Collections;

public class thermoPowerControlPanel : MonoBehaviour
{
    public bool t1 = true;
    public int temperature;
    private int tempUp = 10;
    private int tempDown = 1;

    public thermoPowerControlPanel()
    {
        temperature = 100;
    }

    public void turbine1State(bool t1)
    {

        if (t1 == false)
        {
//        ThermoElectric.t1Bool = t1;
            Debug.Log(t1);
            StopCoroutine("increaseTemperature");
            StopCoroutine("decreaseTemperature");
            StartCoroutine("decreaseTemperature");
        }

        if (t1 == true)
        {
//            ThermoElectric.t1Bool = t1;
            Debug.Log(t1);
            StopCoroutine("increaseTemperature");
            StopCoroutine("decreaseTemperature");
            StartCoroutine("increaseTemperature");
        }
    }

    public IEnumerator decreaseTemperature()
    {
        for (int i = 0; i < temperature; i++)
        {
            yield return new WaitForSeconds(1.0f);
            temperature = temperature - tempDown;
            Debug.Log(temperature);
        }
    }

    public IEnumerator increaseTemperature()
    {
        for (int i = 0; i < 100 - temperature; i++)
        {
            yield return new WaitForSeconds(1.0f);
            temperature = temperature + tempUp;
            Debug.Log(temperature);
        }
    }
}