On Sat, 7 Feb 2009 23:56:56 -0000, Nick wrote:

Does anyone know of an economical way of either using this waste for
heating purposes or a more economical method of disposal.

Commercial waste oil burners are available one of the local garages has
one to heat the workshop. The suggestions of drip/wick/sawdust burners
will almost certainly fall foul of pollutions controls these days. You
need a high temperature burn to (hopefully) break down the nasties in the
waste oil. Your mix of oils might be a problem as well.

I'm sure google will be far more helpful than here.

--
Cheers
Dave.