Here is an easy way of making an insulated wood fired oven door.
This is made from 100% recycled materials... the screws are second hand (from a car boot sale) but new (count as recycled?)
Materials used to make this:
1x Night store heater, $1 from my local auction site. (provides sheet metal and crematic blanket insulation)
1x single bed head, again $1 from my local auction site. (Provides solid timber for front of door and handles)
+ screws $2 from local car boot sale.
Total price $4
Basic DIY tools required, tin snips, drill, jig saw etc.
Step 1: Cutting and lining front wood bit.
When you made the front arch of your oven you would have already made the cutout template for the door, this should be almost perfect... but may need a little adjusting, in this case it was good as i used a 3mm layer of MDF over the curve which will leave me with 3mm of a gap around this template.
As we only have 3mm of room to play with and want to make a snug fit, once you have drawn your template onto your wood you want to remove the line when you cut... not leave it... that's about 1mm or more extra if you leave it.
Once you have cut it though, pop it in your oven gap and check and adjust in any spots if you need too.
You also want to cut the breather hole here,
As my flue is 100mm diameter i want to cut the hole the same area so it is ___x___
Next use your new piece of wood as the new template and cut your piece of sheet metal to line the rear of the wood.
Then pop some screws in, as many as you feel necessary.