waste cooking oil in greenhouse heater

[jonukas]

I hope one of you clever chaps on here can advise me.
I would like to get a ordinary parafin heater for my 6x8 greenhouse, and I wondered if it was possible to run it with waste cooking oil.
Would I need to adapt it in any way, and would the fumes possibly be harmful to my plants.
I'd be interested to hear if anyone is currently using a similar method of heating.
I'd be grateful of any advice.
Jonukas

[tel b]

I'd say you couldn't use waste cooking oil. It would be too viscous AND if it stayed alight you'd have a greenhouse full of smoke very quickly.

[scotman]

assuming the heater burns via a wick then I would agree with Tel B. You might get away with adding a little to the paraffin but you might still get the smoke

[jonukas]

Thanks for the answers guys, I suppose I will just stick to parafin
Jonukas

[solera]

Having tried various forms of greenhouse heating over the years and discounted full electricity on cost grounds I finally bit the bullet and use propane because it can be used with a heating control I only use it for about 10 to 12 weeks each year and reserve the heated propagator for seed germination.The cost of parafin is nearly as much as petrol shame it used to be very cheap.