how to make a room heater at home

how to make a room heater at home
Which brand room heater is best?
These are the Top 10 Best Room Heaters in India 2019:
Havells OFR 11 Fin PTC Fan Room Heater. ...
Orpat ORH-1410 Radiant Room Heater. ...
Bajaj Minor Room Heater. ...
Morphy Richards OFR 09 Oil Filled Room Heater. ...
Usha FH 3628 PTC Fan Room Heater. ...
Bajaj Blow Hot Room Heater. ...
Eveready QH800 Room Heater. ...
Orpat OEH-1260 Fan Room Heater.
https://www.youtube.com/watch?v=C32a9UFiXhQ&t=158s
https://www.youtube.com/channel/UCJ-v2dnLXngY29Rj-GYTTZw