Cov qhov rooj tsis zoo tuaj yeem muab faib rau: qhov rooj qhib qhov rooj, qhov rooj rau ntawm qhov rooj, kev tawm lub qhov rooj thaum muaj xwm txheej ceev, cov qhov rooj ntawm qhov rooj, qhov rooj loj, qhov rooj thiab lwm yam khoom pib siv hauv tsev, yog xyoo 20th tom qab. Thaum lig 20, qhib cov American supermarkets, pib siv qhov rooj pib. Txij thaum ntawd los, xyoo 1945, roj-hydraulic, huab cua yam tsis zoo siv tau cov lag luam, lub ntsiab nkag ntawm lub tsev tshiab kuj pib siv. Xyoo 1962, lub hom hluav taws xob pib tshwm sim, ua raws li kev tsim kho ntawm lub nroog, thaj chaw uas tsis siv lub tshuab hluav taws xob tuaj txhua xyoo. Thaum xub thawj, nrog cov khoom siv hluav taws xob rau lub zog tswj kev tsav tsheb tsis yooj yim, yuav tsum nqa tawm cov roj siab, huab cua siab ceev tswj kev hloov, tiam sis vim tias kev siv hluav taws xob tsawg heev, tab sis nrog kev tsim hluav taws xob tswj technology, tam sim no hluav taws xob tswj tshuab tau matured, ncaj qha tswj hluav taws xob motor automatic qhov rooj maj ua lub mainstream.
Piv txwv: Ntau yam ntawm cov qhov rooj qhib tshwj xeeb tuaj yeem paub txog kev tswj hwm, xws li: Induction Tsis siv lub qhov rooj (infrared induction, microwave induction, kov qhov muag, taw ntsa), lub qhov rooj tsis siv los.
Kev siv ko taw pedal, teeb duab ntawm teeb duab thiab lwm yam zog rau lub zog, cua tshuab lossis hydraulic fais fab tuaj qhib qhov rooj qhov rooj. Nyob rau lub xyoo pua AD, qhov kev qhib lub qhov rooj qhib ntawm lub tuam tsev cov qhov rooj ntawm Greeks, Hiro, yog thawj qhov rooj los nres cua thiab hydraulics.
