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[STMO123]

Heating oil quality is, as you say, highly variable

The flue has a fantastic draw. When it fires you hear the air start being pumped through for 5-10 seconds before the fuel is injected and ignited

My mix of fuel is quite variable... Obviously when I get a diesel into petrol I could try to get that into my tank

As you say... Heating oil is getting eye-wateringly expensive now so...

If you stop posting we'll know you tried it and .......

[albitz]

I might hear the bang from here.

[Lazydocker]

Had a busy day today (about 200L of contaminated fuel into storage on the way home tonight ) so I'll leave this running a little longer for more opinions...

But I'm still here at the moment

[Sir Tigger KC]

I'm with Entwood and reckon the petrol content is too high.... BOOOOOOM!!! 

I said it first......

Sorry Vamps!!! 

Dosn't petrol and diesel separate when left to stand for a while?? 

[Lazydocker]

I'm with Entwood and reckon the petrol content is too high.... BOOOOOOM!!! 

I said it first......

Sorry Vamps!!! 

Dosn't petrol and diesel separate when left to stand for a while?? 

Not really. Needs to stand for a very long time

[Lazydocker]

No further thoughts on this yet then?

[STMO123]

No further thoughts on this yet then?

Not really.

[Lazydocker]

No further thoughts on this yet then?

Not really.

Didn't mean you.... I was asking the educated members

[STMO123]

No further thoughts on this yet then?

Not really.

Didn't mean you.... I was asking the educated members

Neither of them are online.

[Lazydocker]

No further thoughts on this yet then?

Not really.

Didn't mean you.... I was asking the educated members

Neither of them are online.

That explains it then

[Lazydocker]

Well, no-one seems to be sure, including some boiler engineers I've spoken to, but here is what I've gleaned from other guys...

One chap has had his boiler running on purely contaminated fuel for the last 6 years along with 3 friends' boilers too.

Another guy started, like the first, with a weak mix, then a little more, and so on, until he realised it was now on pure waste fuel.

Another one has it running on pure waste fuel and has done for over a year now.

Another 2 guys have just started to add it into their system.

So far, not a single one of them has needed to make any adjustments or changes to the boiler

Any more thoughts now?

My thinking is that as Kerosene is thinner than Diesel but thicker than petrol, my mixture is probably of a very similar viscosity. As Kevin has rightly said, Kerosene (or paraffin) are of very poor purity and often contain everything from the thicker oils to Avgas or even Jet-A1 (if it didn't meet the strict requirements), including Derv and petrol, so what have I got to lose?

[Kevin Wood]

On a 30 year old boiler.. Not a lot, IMHO. 

[Marks DTM Calib]

Lol.....if you had consulted a boiler ENGINEER you might have got a more definate answer......but having probably consulted a gas fitter or a service tech....but you knew that anyway realy 

Anyway, for me I cant see why it would not work, the only question would be optimum jet size requried in order to get the best flame and least soot.

[Marks DTM Calib]

A very quick search hints at two different types of burner, one being a pressure jet and the other a vapuriser type (it appears that most modern ones are the former).

Also, if its a pressurised combustion chamber (e.g. a balanced flue or a fanned setup) then there may need to be some further tweaks to the jet to get it optimum

[Marks DTM Calib]

Also, looking a little further, the pressurised jet setups rely on the oil to lube the pump so it might be worth keeping a small percentage of heating oil in there given the poor lube properties of petrol and the 'not nearly as good as it used to be' lube properties of diesel. Should help prolong the component life.

Question is.......how long a stick are you going to use to turn it on for the first time!