It means you need longer time and more gas to melt whole pot of metal, my dual burner solved this problem by heating 2 sides of crucible at the same time, it can save 50% time and 20% gas cost. As we know, 40%--70% gas energy is actually escaping in heating process, that is big waste.
So if you melt fast, you save more propane cost. Package includes all of items in my 1st photo, including crucible, casting mold, tongs, gloves, fire brick, hose & clamps, instruction manual. Furnace body is made of stainless steel(1mm thick), no need painting, highly resistant to corrosion, superior strength and durability; Can bear the weight of one adult. Dual gas burner, each burner is around 100,000 BTU, fast melting can save 50% time and 20% gas cost ; 3. Outside Dimensions : 12" diameter x 15" height (30cm x 37cm); 4.
Inner Dimensions: 8" diameter x 10"Height (20cm x 24cm); 5. Adjustable high pressure gas regulator with gauge from 0--30 psi, 5 ft (1.5m) long hose, USA certificated; 6. 10 kg crucible can load 10 kg brass or 3 kg aluminum or 12 kg silver. Graphite casting Mold: 113 ML capacity, size is 1256040 mm, can melt 2 kg gold, 1.2 kg silver, 1kg copper. Furnace body and lid are fully lined with 2 inch of ceramic fiber insulation.
Furnace floor lined with 3 inch of ceramic insulation and firebrick. You only need a propane gas bottle/tank (like 20,30 or 50 LB). A pair of lifting and pouring tongs for 8Kg, 10Kg or 15 Kg crucible, safe and easy way to handle molten metals. It is made from heavy duty steel. Total Length is around 24'' (60cm).
The round shape jam is 6 inch. One person can handle this tong, no need other people's help. Dual burner can save 50% time and 20% gas cost. The air choke on our burner can control the air and flame at different gas pressure.
You also can use only one burner by shut off the valve, and block one hole on furnace body with my additional ceramic wool. Do not use it to melt iron, that will shorten the life of the furnace. Graphite crucible is consumable, you can change a new one according to your requirement.
Use safety goggles, mask as well as gloves while casting metals. The ceramic insulation blanket is not asbestos, it is not harm to health. Asbestos has been forbidden many years ago. I don't think it is necessary to coat fire cement /refractory mortar or rigidizer on ceramic wool.We have 3 warehouse in East, Central and West of USA. So you can receive it in 2--5 days. This item is in the category "Collectibles\Tools, Hardware & Locks\Tools\Blacksmithing". The seller is "lava-forge" and is located in this country: US. This item can be shipped worldwide.