"high efficiency" is not very descriptive. What is the Energy Factor or 1st Hour Rating?
1951239
Energy factor .62, first hour delivery 68gph, recovery 40.4gph for 90 temp rise. See http://www.rheem.com/documents/fury-gas-rheem-fury-gas-spec-sheet
900571
I have used it 30 mins. at a time without decrease of power. Have had no need to try usage longer than that.
277785
I do not know if it is, but I do know that two of them have have barely increased my utility bill even though they are running 24 hours a day. More important, they are very effective. In the lowest setting they are barely noticeable, and I have no difficulty sleeping when they are set at the mid-point. I run them at the maximum setting only when no one is in the room.
1655981
About three hours is the average time based on a normal power profile. If you elect to use the energy savings settings power profile, then you could get 4 hours or more.
1635466
Shouldn't be a problem. The labeling won't match, of course. I think the joule rating has to do with how much power it can dissipate in a power spike, so a higher rating is better.
1912199
Based on my experience this appliance operates very softly and with very low decibel. I am not aware of the high energy usage.
844907
Let's define energy efficient. There are 5 other answers to this question at the time I'm posting this, but no one has mentioned what energy efficient means. Do you know what you mean by it? Generally, efficient would mean that whatever device you are discussing uses most of its energy for whatever its main purpose is and not much toward other uses. Your incandescent light bulbs utilize about 9 percent of the energy they consume for light and send the other 91% into heat. What a waste. How inefficient. Similarly, feel how HOT your car engine is after only a 4-mile drive and how long it stays hot and you realize that you are WASTING thousands of gallons of gasoline simply heating the Earth's atmosphere. The great thing about a heater is that its product is the waste that we find in so many other devices. We WANT all that waste and inefficiency that is in other machines to shoot out of the front of the electric heater. Where does this heater use its electrical energy? Heating the wires and spinning the fan. Between different heaters, there are probably slight variations in what percentage of the energy goes toward spinning the fan; however, in every heater MOST of the energy goes into the heating elements. Thus, efficient doesn't mean much when you are comparing forced-hot-air electric heaters. The total wattage determines how much heat you get. The interesting thing about this heater, that you may not have noticed, is that this heater uses ONLY 750 watts, which is HALF what most of the other electric heaters for sale here use. So, it really won't give out much heat, as a number of reviewers have written. Unless you are in a very small room with NO drafts, this heater won't do much. If your electric rate is 14 cents per KwH, then running a 1500-watt heater for 8 hours costs you $1.68. Running this heater for the same time costs half that, but gives you only half the heat.
941433
From the specs, it does not qualify from what I can tell. The 'energy factor' is .62 at best and it is not energy star certified.
1623730
I get about 4.5hrs with the high performance setting. I'm not a big fan of power saving mode. Haha
223473
I did not find any Energy Star rating on the unit when I received it nor during installation. If you're wondering if you can write it on your taxes...I would. If you're asking if it has 'low-e' gas, the answer is 'Who Cares'. Low-E is a gimmick at best. How long does it take a gas to escape any non-NASA enclosure?........minutes.
1319301
The rating is 500 watts, so you should not expect to do any more. The 1000 watt peak really only takes care of start up, since the initial load is always more than the operating wattage.
1299546
1040 watts at an 80% efficiency factor or about 800 watts at 100% efficiency factor. 800 watts = about 40-45 amps at 12 volts which gives you a safety cushion of 15 amps with the unit. if you are going to run the unit at 24 volts, your inputs would be higher since as voltage rises with solar, your amps are usually cut by a factor of about 30-35% at each voltage increase(12/24/36/48 etc) without knowing what your panels are rated at, i cannot answer the number of panels question. just multiply your panel wattage by number of panels= total wattage. hope this info helps you. i can tell you this tho- i was pumping over 40 amps continuous into the unit when first hooked up and it wasn't even getting warm!. very well made unit/even better that its made in America and buying it supports other fellow Americans.
1399388
No where is it written in the package insert that this heater is energy efficient. So I doubt that it is. However, there is an "EC" setting (Eco-Smart) on some Sunbeam heaters. On this setting the heater cycles between high (1500 watts) and low (750 watts) to conserve energy. My heater is packed away for the summer months, and I do not remember if the EC setting is available on this particular model. Sorry I couldn't give you a definite yes or no answer.
651001
I had written to the company about this, they said 40W/hour.EDIT: I had written about three other models, not this one. The company is response to requests for information though, I suggest contacting them.
190621
Sorry, the power supply does not have the Efficiency Class numeral listed on the label.
1747002
i'm answering on the computer I installed the battery on so I do not have the Amp/hr rating however, this battery is great I usually run my lap top from 7 Am to 6 or 7 pm without any a/c power this thing rocks!!
524364
I think the specs say 8-ish for air, and 7-ish for heat... it does not have a huge impact on our electrical bill, and we run it a LOT.