Checking for a float as a health bar

Hey all I am new to coding and I am working on a new level I have used this code to show on screen the players health. Is there a way where when the health hits no Health that I respawn at a set location?
any help would be great thanks all in advance

using UnityEngine;
using System.Collections;

public class Health : MonoBehaviour
{

GameObject box; //variable collectable box 
public float health = 100; // variable for score floated to the screen/publically

//use this for initialization
void start()
{
    box = GameObject.FindWithTag("Health");
}

void OnTriggerEnter(Collider other)
{
    if (other.tag == "Health")
    {
        health -= 5;
        Destroy(other.gameObject);

    }
}

void OnGUI()
{
    GUI.Label(new Rect(150, 160, 300, 300), "Health : " + (int)health);
}
void Update()
{

}

}

Yes, you can do something like this:

     GameObject box; //variable collectable box 
        //Add a transform for your spawn position
        Transform spawn;
//Add height you want to spawn at
public float spawnHeight;
         public float health = 100; // variable for score floated to the screen/publically
        //Add variable to save the initial health
        float savedHealth;
         //use this for initialization
         void start()
         {
        //Assign health to saveHealth
        saveHealth = health;
        //Find the spawn object
        spawn = GameObject.Find("Spawn").GetCompnent<Transform>();
             box = GameObject.FindWithTag("Health");
         }
         void OnTriggerEnter(Collider other)
         {
             if (other.tag == "Health")
             {
                 health -= 5;
                 Destroy(other.gameObject);
             }
         }
         void OnGUI()
         {
             GUI.Label(new Rect(150, 160, 300, 300), "Health : " + (int)health);
         }
         void Update()
         {
        //Check if health is zero
        if(health<=0){
        Vector3 pos = new Vector3(spawn.position.x,spawn.position.y,spawn.position.z);
pos.y = spawn.position.y + spawnHeight;
    transform.position = pos;
        //Reset Health
        heath = saveHealth;
        }
     }
    }

Tell me if this works. I am not at my computer so I can’t test it myself.

Note: Make a gameObject in the editor and name it Spawn or whatever you say it is in, spawn = GameObject.Find(“[insert your gameobject name]”).GetComponent();

Sorry for the slow reply been busy with College work