Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: I have a room of 225 sq.ft. Will this heater give me enough heat?
Document: The best electric heater I've seen. Uses crush proof vents to easily convect your heat to the room. Produces a nice even comfortable heat when operated with proprtional control(Triac) thermostat. Made in USA. Do yourself and your country a favor. When you think electric heat, think King Electric Mfg. co. I have no affilition with the mfr.
good price just the size we needed and very happy with the looks and it works well. I would buy this brand again.
I Installed one of these in a basement bedroom, it has worked well all winter. It was easy to install and seems well made, for the price I was very happy.
Answer: no