Ok so I bought this sunbeam electric heater from Walmart for $50 about a month ago well we threw the box out then after 3 days of use ut started smelling funny hot plug and cord and smoking ... So we bought another one put the broken one in the box and returned it... Well now last night the new one did it to and about caught on fire.. Is there anything I can do without box or receipt ?? Or just keep switching them with new ones