I have tyet o use the furnace but I am sure it will be fit for purpose, once the insulation is sealed (see below),as I looked at all the reviews on YouTube before purchasing.
My only gripe is, and I appreciate they are built to.a price, that it does not come with a spray to seal the ceramic insulation or a bag of appropriate size and heat rating to seal the insulation with fire cement. The insulation left unsealed is a health hazard and is also liable to damage during placement and removal of the crucible;
Hence the reason I have to use it as finding a product of suitable rating and in a suitable size and not costing as much as the furnace did not prove easy, I am now awaiting delivery of fire cement to coat the insulation before use.
Also the tongs supplied are not suitable for safely lifting the crucible and will either need adapting or replacing.