please can you tell me when it will arrive? should i just do it on high instead and for how long? that is what it is and that is how it should be viewed. deprive to those who’d give their lives to you. the link to them is here ) . for batch stable production, the small high-temperature tunnel kiln is used. spend a little time in the sun on the first day, then gradually increase it over a few days, rather than hitting the beach full time on day one. 