Hi, what is the efficiency of this? Does it wast much energy?
651988
Based on what I am seeing, it wastes very little energy.I needed 2 amps peak. This unit will operate continuously at 2 amps.Because I do not have it running at maximum current, I do not know the amperage at which it gets hot enough to need a heat sink.It appears that losses from the unit itself are minor, but I have not yet measured that value.
651989
This will depend on input to output difference worst case is 75% 12 volt in 36 volt out Using this as a voltage doubler I get about 85% efficient
154519
Not much. It will only run about ten minutes on high then overheat and shut down. It is basically junk.
595981
Hello! It doesn't seem to heat the room at all. As for energy consumption, I am afraid that I don't know. This is a very powerful and relatively quiet unit.
1377923
The specs are not clear on this question. As far as I know, the unit does not contain a fan, and it gets only slightly warm to the touch under light load (one multifunction printer, one high-power laptop), so it is probably using "a few watts"... i.e., not much. However, the unit is absolutely covered with cooling slots, so perhaps under heavy load it will use more. My guess would be less than 10% overhead.
1872875
It doesn't lose much power, but it doesn't have much to start with. For the size and weight, it's remarkably weak. My old one, which served me well for over 10 years, is much, much better.
867477
The portable Haier Air conditioner is not efficient, unless it uses two hoses one for input and one for output, not just one hose. I traded mine for a window air conditioner but don't get the Frigidaire brand.
1174642
I don't know exact figures but since its not a refrigerator but rather a thermal electric heat exchanger based cooler it doesn't draw much power.
839003
Honestly I have no idea about the efficiency of this unit. However I must say that this is the loudest little power inverter I have ever owned. I don't use it because it has a cooling fan that runs all the time and is quite loud.
309031
I'm not sure what it uses by just being plugged in. It's max capacity is supposed to be 2400 watts. I have a computer plugged into it that is always running as well as a few other things in my recording studio that always use a little power. I don't think it uses much on it's own. I have 4 of them in different locations and I haven't seen any increase in my electrical bill using them.
1273751
Hi, can you re write this question or be more specific?? Are you asking for power consumption?
883992
It is more energy efficient than other electric models since its motor only draws 6.5 amps, while others are often double that. As far as impact on electric bill, it's negligible.
922768
Yes, very, very energy efficient...... Only pennies per hour to run. Love it......works great.....everyone needs one.
2175080
I'm not surprised. Motors (there is one running refrigerator's compressor) draw a lot of power the second it starts but it only last for a second. A refrigerator also has a small fan that circulates air over the evaporator coils, That fan likely draws 2.9watts. The meter also can record cumulative energy usage in kWh, a properly running refrigerator shouldn't actually consume that many kWh.
1583067
Very little. We live in a total electric home and noticed little change in our cost. Very efficient, also.
1263496
Not much ... but I can't tell you exactly. Its computer probably uses a little all the time. It runs a little fan when it is making heat and for about 10 seconds afterwards. It depends on how much you use it, obviously. On the plus side, it adapts its heat to the temp of incoming water, so you can use solar to preheat and reduce LP consumption. It's a great heater, and while we're on the grid, we produce most of our own electricity "on house" and are very sparing ... and we use TKjrs on all our units.
923104
No. It is a good inverter though. Some inexpensive inverters will use a lot of energy even if they have no load on them. This one doesn't. Very important when running something that cycles on and off like a refrigerator.
1708004
Chris, the power consumption is very low. The lamp utilizes LEDs. Unfortnately, I did not find the lamp effective for my purposes I only used the lamp once for 1 hour. If you like I would sell you my lamp for $25.00 USD. Contact me at nero_mpb@yahoo.com.