[Stoves] Burning tar

[John Davies]

Greetings,

I have limited knowledge on these things, and will stand back to allow the 
more knowledgeable members to go ahead.

Just one question needs to be clarified in my mind,  the word "tar". Is one 
referring to heavy hydrocarbon oils, as found in coal and crude oil,( known 
as bitumen ) OR the residue that condenses on cool surfaces as a result of 
incomplete combustion of organic substances ?

I believe that there might be a link between them, but would rather leave 
this one in the hands of someone like Philip Lloyd.

I am looking forward to learning from this one.
John Davies,
 Secunda

----- Original Message ----- 
From: "Crispin Pemberton-Pigott" <crispinpigott at gmail.com>


> Dear Friendly Assisting People
>
> A friend who is not a subscriber to this group, Bruce Berger at
> bberger at cermalab.co.za has asked the following questions:
>
> ++++++++++
> Please help me:
> What happens when you burn tar?
> Do you get much more than CO2 and H2O?
> What constitutes nasties (carcinogens?) when you combust organic things?
> What is CTPV?
> Can you burn things like tar safely if you have excess oxygen?
> Is combustion of wax cleaner (or safer) than combustion of tar?
> I just need to get a better understanding of these things.
> ++++++++++