Sir please heater wala issue pai video bana ka dalna because muja triber purchase krne hai aur yeh heater ka issue dikh na hai pehla iss liya aap jaldi video bana saka toh thnks.
Bhai piche cooling coil hoti hai aage cooling coil aur heating coil hoti hai heating coil alag hoti hai usmein radiator ka Pani chalta hai Is liye vah heating deti hai