(Sorry if this is a double-post ...)
I had a house fire which left nasty soot on everything.
Fortunately, since the furnace was knocked out, the LP space heater
still functioned. It showed a lot of yellow flame, but it made heat.
Tonight I found only 1/2 the burner functioning, or less, and the
flame coming up above the glass on the functioning side. Not safe!
But I think it is just dirty, no otherwise messed up.
So ... how can I clean something like this to return it to full