I share my bad experience with haha 3002-QH Quartz room heater. When I purchase it then I found that the wire quality is very bad because when I am in room then I go to other room for work then I leg touch the wire and it is shocking for me. So next day I file a complaint on consumer court for this inquiry they says that(product amount is pay to you with the treatment of money also) it is just because I am very week.
So my experience with my personal opinion that don’t use it very harmful product because wire is does not have to take any high amount of electric current so be aware because there is chance of death.