Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Bad

Heater worked for a couple of months and stopped. I was expecting it to last for a significant period of time years. Its not like the technology is new or complex. All it needs to do is work. We called customer support at KAZ (KAZ is the MFg and servicer) and were told it would take 6 weeks to get a replacement. So basically, we could get the heater back after winter had mostly passed. Asked if we could return it and were told we would need to talk to Honeywell directly. Customer service closed. Only open during normal business hours. Very helpful for those of us that are employed and working a normal schedule.