I know we all like "cheap" on here but is the burner end of things worth messing/cheaping out on when you can buy a working pressure jet burner for peanuts. All ready to run on heating oil or red diesel for £80 or less. I am not sure how one would wire round the safety gear on these like the flue stats etc but I am sure its doable. Just sayin
https://www.ebay.co.uk/itm/Electro-Oil-Sterling-40-ST108-Oil-boiler-burner-Central-Heating/352686963150?_trkparms=aid=1110001&algo=SPLICE.SIM&ao=1&asc=20131231084308&meid=df1e3f67dc60404f9705a6c391540a55&pid=100010&rk=1&rkt=12&sd=183840835519&itm=352686963150&_trksid=p2047675.c100010.m2109
Bob, I tried that, bit it does not work -
Those burners are generally used for water boilers. So what they're firing into is kept cool by the water (by cool, I mean sub boiling)
But if you fire them into somthing that is getting into the hundreds of degrees, then even the heat radiated back will kill them.
If you look at my vid, the reason the inlet flange is so large is that I cut it out of a scrap boiler especially to mount one of those sort of burners. But it didn't work.
I know they are somtimes used on industrial incinerators, so there must be a way around it, but it wasn't clear to me.
All the burner is in my photo is a pipe with a fuel source dripping into it. The drips get carried in by the air (well not really drips, unless you turn off the air) - the £30 I quoted was for the pump, the blower, valves etc. more then the burner. The burner is two parts - a wide bore tube and a bit of 8mm copper pipe stuck into it - that's all.
Bob, I tried that, bit it does not work -
Those burners are generally used for water boilers. So what they're firing into is kept cool by the water (by cool, I mean sub boiling).
Bob, I tried that, bit it does not work -
Those burners are generally used for water boilers. So what they're firing into is kept cool by the water (by cool, I mean sub boiling)
But if you fire them into somthing that is getting into the hundreds of degrees, then even the heat radiated back will kill them.
the reason the burner is fed from the side is so that the flame swirls round the side of the furnace giving a lot of uniform heat off before it comes out of the top . if it was fed strait in it would just hit the pot on one side and blast out the top and hardly retain the heatThey are definitely used in smelters Stuart but they all seem to fire into a box on the side rather than straight in, would be interesting to know the reason and the design parameters.
Bob
730 × 730
the reason the burner is fed from the side is so that the flame swirls round the side of the furnace giving a lot of uniform heat off before it comes out of the top . if it was fed strait in it would just hit the pot on one side and blast out the top and hardly retain the heat
I would think the combustion air blowing through the burners would keep any heat from coming back - I used to work for a company that made oxidisers and the burners they used on there were in a chamber that sat at 1000-1100 degrees when running and the burner never got that hot to the touch.They are definitely used in smelters Stuart but they all seem to fire into a box on the side rather than straight in, would be interesting to know the reason and the design parameters.
Bob
730 × 730
I would think the combustion air blowing through the burners would keep any heat from coming back - I used to work for a company that made oxidisers and the burners they used on there were in a chamber that sat at 1000-1100 degrees when running and the burner never got that hot to the touch.
They were big cast iron Maxon ones, when the oxidiser went into self sustain mode and the burner turned off then they did used to get hot but never when running with the burner on.
drip fed type