How to make a simple cheap gas heater?

Gas heater for home use come in different prices and sizes in market. But more efficient heaters are more expensive. So how to build an efficient heater that consume very small amount of gas at low cost?

In my previous post, I discussed at basics. Not lets move to practical.

 Rule is simple, disperse gas on a material that become red hot and that material will emit heat. Why is it important? Because material will stay hot while hot air molecules may escape the room.
1. Things you will need
  Stove

Remove mesh

  1.5 litter (or bigger) soft drink empty bottle
  1 match box
  Half kg white cement
 

2. Mix water and white cement.
Make a paste of water and white cement.

3. Cut bottom of bottle and pour mixture of white cement.

4. Set match sticks to make holes.
By using your creative mind, do it with steady hands.

Just like this

5. Wait for one day to set white cement.
wait untill cement sets hard.

6. Remove bottom of bottle by cutting it with sharp paper cutter.

7. Make holes clear (by using screw driver).
Pull out match sticks gently and make holes clear and lillte bigger. Also break a little from sides as you can see in picture below.

8. Put it on stove and burn it.
 Make sure that it is well centered. Put stove mesh on it.

At Full

At mild

Optional: you can use small stones placed around it.
Notes:
You can make your own designs
Why not flat? because it break easily and because it needs a large surface area.
Alernative to white cement is clay.
Alternative to match bor is tooth picks.
Open gas as low as passible.

Pictures may not be clear. I will try harder next time.
  MJM