The heating tube electric oven depends on the temperature, so the service life of the heating tube is the service life of the oven. At present, there are mainly: timely heating tubes, stainless steel blue tubes and light wave tubes. These heating pipes have their own characteristics. Quartz tubes are used less now, mainly small-capacity ovens; Stainless steel bluing tubes include ordinary double straight tubes (mainly this kind now) and M-shaped bluing tubes; Light wave tube is heated by light wave technology, which is rare in the current industry.

Capacity. The grade and price of the oven are related to the capacity of the oven. At present, the capacity of about 30L on the market is the mainstream. Those below 20L belong to small capacity, and those above 38L and 38L belong to large capacity ovens. M-type blue tubes are mostly used in this kind of large-capacity oven.

Function. Mainly includes: hot air circulation, rotary roast chicken, fermentation, thawing, drying and so on.

Control mode. Mechanical knob and intelligent operation. Of course, the oven with intelligent panel operation mode is definitely better than the mechanical knob, and the price is also higher than that of the same type oven.

Others. The above are the more important parameters, others such as appearance material, cavity material, accessories, etc. It is also an aspect to measure the quality of the oven.