Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: What has the increase to your electricity bill been like?
Document: Of course, its important your garage is insulated - ceiling, walls, and doors. I had it professionally installed with 30 amp breaker and disconnect switch. I'm only giving 4 stars for now, since I haven't received my first electric bill. I'll update this review when I do (but I fully understand the higher cost for electricity vs. natural gas. I chose to go this route for the lowest install cost and I'm only using the heater 4-5 months out the year.) Bottomline, this heater is excellent.
The thermostat is a little irritating but once you learn the character of your space, set and forget it. I turn it on/off at the circuit breaker.When it activates, you hear the heater relay pop on or off, which can be a little startling. The coils and fan are pretty quiet. It's an industrial heater, so don't get it for a space where noise sensitivity is an issue. For a big work space, this unit does the job and I recommend it. The wiring was easy to install, just remember to use the right gauge.It will add to your power bill like any other appliance but your mileage will vary depending on use.
Like most people say, I haven't gotten the electric bill yet so this will be a review based on the heater's performance not efficiency.-First Impressions-The unit is smaller/lighter than I expected, this isn't a bad thing as it seems to work well. The internal wiring is smaller as well. I used 10 gauge wire for the plug as the heater is rated at 21 amps requiring a 30A fuse. I don't think the internal wiring would be sufficient for a 20A sustained load.-Installation-The instructions for wiring the heater are very poor.
It brought the garage up from very cold to almost short sleeve shirt temperature in that time. (probably low 60's, didn't have thermometer.) I plan to work on my car & do projects. This was a great addition for me. We wired a 220 volt, 30 amp breaker with #10 wire. I opened the wall, did the grunt work &had electrician wire it up. Used a dryer plug & ran cord to heater so we could unplug if we wanted. Works like a champ! Haven't received my first power bill, so can't say how painful that will be but for  the 10-12. evenings per month I run it, I'm happy to stay warm.eveningscper month
In any case, once mounted, it is out of the way, and always ready. There's nothing to haul out or set up when you need heat -- just turn it on. When done, just turn it off. This heater needs a dedicated 30-amp 220-volt circuit. You wouldn't want to use this every day, due to electricity costs, but for occasional use, it is perfect.My advice is to skip step 1.Note: This heater is also sold under the Dayton name, as the G73 Electric Garage Heater.
Brings our 784 sq. ft. detached garage from 48  to 64 in about an hour. Outside was 30. Install was easy. Don't know what it will do to the electric bill but with limited use, it shouldn't be too bad.
I have monitored the change in my electric bill from the previous year and much to my surprise these two unit's average about 50-75$ a month depending on usage. I would recommend this unit to anyone who is serious about buying a quality product that performs as advertised and beyond.
The item arrived well packaged and in a timely fashion. It is doing a great job of keeping the basement at a comfortable temperature. I live in the North East and our basements are cool in the winter months. It was relatively easy for my handy hubby to connect and is working just fine. I hope that it is not too much of a pull on my electric bill, but we will see. It is set on automatic.
very nice heater. thermostat works well and is automatic. this will crank up your bill if you use it nonstop for a month, but any heater will. it puts out a nice even flow and will warm things up nicely. i wouldn't suggest using it in an uninsulated building as it might not be able to keep up. but in any enclosed insulated shop it will work nice. we use it in 500 sq feet and will keep the temp at 65 on a 20 degree day
Very happy with purchase and performance so far, but haven't rc'vd 1st electric bill. Only product improvement suggestion would be adding an LED light that indicates unit is on. No longer have to be concerned with anything freezing and can crank it up for doing any work in the garage. Also ensures our extra fridge runs o.k. (today's fridge/freezers do not work very well when room temps drop below 30 or so. Should have done this years ago.
Answer: yes