If those holes in the tube were 1.5mm in size it would burn blue, you do not need any holes at the bottom of it. What happens to get a blue flame is have a puddle of oil on the base of the burner and light it with the tiny amount of air to begin with until the pot is warmed up 1 minute max should be plenty. Turn up the air a notch and as the oil boils on the bottom of the pot the fumes catch on fire using the air from the centre pipe and grills the oil in the base of the burner making it produce more flammable gas which burns blue if not too much air is blown through the holes. Once the system is up and running it should burn blue all day :)
Thanks for the hole size, I didn't find anything specific on that before I started the project. I wonder if there is a formula for cfm to oil ratio that could be calculated? Once it gets colder out, I am going to tune it more.
@@700PROJECTS Well as far as the hole size is there must be a formula but I don't think they kick out as much heat when burning blue. The amount of heat these things put out is based mostly on the surface area of the puddle, not so much the drip rate and I can not get a blue flame if I ramp up the air with larger holes yet it will burn hotter but have yellow flames! I think it is a balance between how hot you want your workshop. As long as its not churning out smoke it's not important. Oh most importantly, I mix 10% kerosene with the oil otherwise it won't burn blue the one I use on a daily basis, however with the larger version I made a toast video of it burns anything and is pretty much an invisible flame and the holes are about 3 mm in size. As you say there must be a formula but are you or I going to find that out in a laboratory fashion. Our burners are to save money not be some sort of scientific break through :) I found having a gentle blue flame for daily use the chimney doesn't soot up and at only about 1 drip per second gives about 18 hours burn on 1 gallon 4.5 litres of oil mix and gives out gobs of heat all day :) I think you are right that we need some sort of shut off if the burner goes out. If I could develop one quickly I could use it at night time unattended then, but seeing as I'm always near to it I haven't bothered yet but it is important.
If those holes in the tube were 1.5mm in size it would burn blue, you do not need any holes at the bottom of it. What happens to get a blue flame is have a puddle of oil on the base of the burner and light it with the tiny amount of air to begin with until the pot is warmed up 1 minute max should be plenty. Turn up the air a notch and as the oil boils on the bottom of the pot the fumes catch on fire using the air from the centre pipe and grills the oil in the base of the burner making it produce more flammable gas which burns blue if not too much air is blown through the holes. Once the system is up and running it should burn blue all day :)
Thanks for the hole size, I didn't find anything specific on that before I started the project. I wonder if there is a formula for cfm to oil ratio that could be calculated? Once it gets colder out, I am going to tune it more.
@@700PROJECTS Well as far as the hole size is there must be a formula but I don't think they kick out as much heat when burning blue. The amount of heat these things put out is based mostly on the surface area of the puddle, not so much the drip rate and I can not get a blue flame if I ramp up the air with larger holes yet it will burn hotter but have yellow flames! I think it is a balance between how hot you want your workshop. As long as its not churning out smoke it's not important. Oh most importantly, I mix 10% kerosene with the oil otherwise it won't burn blue the one I use on a daily basis, however with the larger version I made a toast video of it burns anything and is pretty much an invisible flame and the holes are about 3 mm in size. As you say there must be a formula but are you or I going to find that out in a laboratory fashion. Our burners are to save money not be some sort of scientific break through :) I found having a gentle blue flame for daily use the chimney doesn't soot up and at only about 1 drip per second gives about 18 hours burn on 1 gallon 4.5 litres of oil mix and gives out gobs of heat all day :) I think you are right that we need some sort of shut off if the burner goes out. If I could develop one quickly I could use it at night time unattended then, but seeing as I'm always near to it I haven't bothered yet but it is important.
Me and you are quite alike. Nice vid.