Heating - stove or central heating?

[cuthound]

16 hours ago, booke23 said:

 

That would be a problem. Unless you had a large enough tank to order minimum delivery (200 litres?) from an oil company.  

 

I was kind of thinking they could run on either Diesel or Kero with no modification, in which case you could just use whatever you could get hold of. I thought I read somewhere that Refleks stoves can run on either Diesel or Kero with no modification. With heating oil currently at 28p/litre the savings would be considerable, but you wouldn't want to modify your stove so you'd have to rely on a heating oil supply. 

 

 

 

 

 

16 hours ago, Ex Brummie said:

Yes,

 

No jets to replace/modify. There may be a little difference in output allowing for the difference in calorific value of the fuels, but you'd probably not notice any difference.

It is possible to get fuel in portable tubs to fill up a spare tank. from distributors.

The combined temperature/pressure relief valves are designed to cope with domestic mains pressure systems and operate at 7 bar.. The pressure relief valves used on boats is only rated at 3 bar. Given that the average pump only givesabout 2 bar, maybe 2.5 bar, then you are very unlikely   never likely to encounter super heated steam as the volume increase will expel before such temperatures are reached.

 

16 hours ago, Ex Brummie said:

If you are looking at a pressurejet boiler, then yes. You resize the nozzle and increase the pressure. Vaporising / drip feed burners have no jets and operate on gravity feed.

 

Whilst drip feed stove don't have jets, the Toby valve has a movable metal strip with a slot in it. The slot size is different for diesel (35 second oil) and kerosene which is a thinner oil (28 second).

 

If you run an oil drip feed stove set up for diesel on kerosene more oil will run into the burner pot for any given Toby regulator setting, risking overheating.

 

You can buy the correct regulator strip, but then the stove will need setting up from  scratch again. This need equipment to measure the oil flowing through the regulator accurately (millitres per minute).

Edited June 20, 2020 by cuthound
To unmangle the effects of autocorrect.

[ditchcrawler]

4 hours ago, cuthound said:

 

 

 

Whilst drip feed stove don't have jets, the Toby valve has a movable metal strip with a slot in it. The slot size is different for diesel (35 second oil) and kerosene which is a thinner oil (28 second).

 

If you run an oil drip feed stove set up for diesel on kerosene more oil will run into the burner pot for any given Toby regulator setting, risking overheating.

 

You can buy the correct regulator strip, but then the stove will need setting up from  scratch again. This need equipment to measure the oil flowing through the regulator accurately (millitres per minute).

What about if you run it at number three instead of number 4, or maybe the other way round

[Ex Brummie]

5 hours ago, cuthound said:

 

 

 

Whilst drip feed stove don't have jets, the Toby valve has a movable metal strip with a slot in it. The slot size is different for diesel (35 second oil) and kerosene which is a thinner oil (28 second).

 

If you run an oil drip feed stove set up for diesel on kerosene more oil will run into the burner pot for any given Toby regulator setting, risking overheating.

 

You can buy the correct regulator strip, but then the stove will need setting up from  scratch again. This need equipment to measure the oil flowing through the regulator accurately (millitres per minute).

I've never changed a metering column (metal strip) on a Toby valve. You can just reset the flow rates to achieve the required amount. The equipment you need is a stopwatch and a measuring flask, or a medicine spoon that is graduated in millitres.

In the trade, we always consider the most problematic part of the Toby or other float control is the 'nut' behind the screwdriver. Patience is a virtue. When making any flow rate adjustment you need to give it a good few minutes to settle, and you also need to make sure the flue is warm and drawing. Flue draught is critical, along with  oil depth in burner. 

Edited June 20, 2020 by Ex Brummie

[booke23]

15 hours ago, Bewildered said:

Would a large marine diesel generator run on heating oil?

If so the answer is simple, remove the engine fit a genny in its place and fill the diesel tank with heating oil to run the genny and the heating. This would of course mean that the boat would need to be converted to electric drive but it would get around the problem of not being able to use heating oil for propulsion. As long as the genny is charging batteries and not directly powering the motor this could be the most economical way to cruise. 

Big solar array, big battery bank and genny powered by tax free heating oil; sounds to good to be true, must be a catch somewhere!

 

I think the catch is you can't run a diesel engine on heating oil without adding some lubricant to it, as the fuel lubricates the fuel pump and upper cylinder in a diesel engine. 

 

So by the time you pay for oil to add to the heating oil you might as well buy Red Diesel.