Iyo yekuvhiya yechiedza sosi inofanirwa kusangana nemamiriro ezvinhu anotevera:

1. Ruvara rwakanaka
2. Kupenya Kwazvo
3. neiyo yakaderera inogoneka redrared radiation

Ichi chigadzirwa chinodyiwa mune yega yega yezviri pamusoro. Naizvozvo, yanga iri yekutanga yekutanga sarudzo yemakore mazhinji.