when I was in Broome in the wet
The power bill per week was always around$50, aircon on only when in van.
Had a Heat pump invertor fitted that was run 24/7 by my wife (I slept in annex, was to cold in van for me), power bill reduced to $20 to $25 a week
cheers
blaze
The 2.5kW units are the most efficient. For example the Daikin uses 0.42kW input for rated output, but don't forget that unless it is really hot the air conditioner will run at a lower output (0.6kW to 3.9kW output, Ururu Sarara 7). Then there will be a low input. It will not be as efficient but lets say overall through a 24 hour period the air conditioner averages half the rated input. With the 2.5kW Daikin it will then be consuming on average 0.21kW per hour x 24 = 5.04kW per 24 hours. If the air conditioner ran at it's rated 0.42kW for 24 hours (very unlikely) it would be using 10.08kW per 24 hours.
If you have a larger space & poor insulation then you will need a larger air conditioner & run more. Things like single glazed windows loose heat at 6 watts per m2 per each 1C difference in temperature for inside to outside. So insulate windows & if possible cover windows from the sun from outside so sun does not get on the windows in the first place & everything else should be white & clean!
Ours runs off the batteries and solar via an inverter so it costs nothing to run. A point to keep in mind when it comes to the inverter split systems, they do have a stage were they ramp up to full power, generally when they are trying to move the temperature a considerable number of degrees in either direction. Once they start to approach the target temperature they then operate very economically. the catch is matching the inverter size to the peak draw, not the average draw which is the figure the manufacturer puts in their fib sheets. You can get an inverter type unit to not go into this high power mode by selecting the Eco mode, it takes longer to dry the humidity out and reach the target temp, but that huge power draw is avoided.
T1 Terry
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You can lead a head to knowledge but you can't make it think. One day I'll know it all, but till then, I'll keep learning.
Any links to any sites or products is not an endorsement by me or do I gain any financial reward for such links
Ours runs off the batteries and solar via an inverter so it costs nothing to run. A point to keep in mind when it comes to the inverter split systems, they do have a stage were they ramp up to full power, generally when they are trying to move the temperature a considerable number of degrees in either direction. Once they start to approach the target temperature they then operate very economically. the catch is matching the inverter size to the peak draw, not the average draw which is the figure the manufacturer puts in their fib sheets. You can get an inverter type unit to not go into this high power mode by selecting the Eco mode, it takes longer to dry the humidity out and reach the target temp, but that huge power draw is avoided.
T1 Terry
Thanks Terry,for that explanation.I have a 2.5kw MHI AC on the A Frame,thru a 5kw Victron inverter,and when I start it on a hot day it draws 900 but drops to under 300 once the interior temperature has dropped.No big deal,as I have 1700 watts of Solar,but the first time I used the AC I was a bit confused.All is good though,as I have 540AH Lithium in the van.Cheers
I have put a Daikin 2.5kW & 5.0kW in an investment property so I don't live with them but use them when doing repairs & tenants change. You get 20 minutes on Powerful mode, so if you have the energy available they work well. The 2.5kW works really well for its size. But even running it on a low setting more or less to dry the air out makes you feel a lot cooler, so you can run it pretty economically.
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Procrastination, mankind's greatest labour saving device!
50L custom fuel rack 6x20W 100/20mppt 4x26Ah gel 28L super insulated fridge TPMS 3 ARB compressors heatsink fan cooled 4L tank aftercooler Air/water OCD cleaning 4 stage car acoustic insulation.
I think it might be a bit difficult to answer Dolly. The question talks about the cost of running a standard room aircon, which I would suggest is a domestic unit, but then Dolly says they have the older Ibis unit, which isn't a standard room aircon, its a caravan unit.
It then becomes difficult to answer what is the cost to run, as generally the Ibis would be running off of either a Caravan Parks supply, which is unmetered and included in the parks charge, or off of a generator.
Perhaps Dolly might be able to suggest if he is looking for an estimated cost if he was to connect the unit into a domestic power supply while at someone's house. If that is the case, then someone may be able to advise.
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Regards Ian
Chaos, mayhem, confusion. Good my job here is done
Probably the simplest way is get a plug in watt meter & then turn everything else off for 24 hours, maybe read the meter every hour to see your usage around the clock. Pick a day which is more representative of the weather you are more concerned about. I have a plug in mter & compared to my professional clamp meter it was within 2% so pretty good. Easy to use, & I was surprised about the little things which I thought were off but we're not. These days everything gets turned off at the wall, including the washing machine!
__________________
Procrastination, mankind's greatest labour saving device!
50L custom fuel rack 6x20W 100/20mppt 4x26Ah gel 28L super insulated fridge TPMS 3 ARB compressors heatsink fan cooled 4L tank aftercooler Air/water OCD cleaning 4 stage car acoustic insulation.
The cost to run an earlier Ibis 3 was sort of answered by friends of ours a few yrs back. They had 2 units installed in a 38ft bus and powered from a domestic grid connected power board. They received a $1,200 power bill when the average bill was around $500 when the air con wasn't required, so around $700 for 90 days?. They also had 2 x Honda 3 generators with the power sharing cords and they tried that to see if it was cheaper. A 20 ltr jerry can of petrol was roughly $27 back then, it lasted one 24 hr period. The average billing period for grid connected power is 90 days, 90 x 27 = $2430 and that does not include the servicing or wear and tear costs to the generators.
When you consider the generator costs to run, service and buy in the first place, that will buy a lot of solar and a good inverter ......
T1 Terry
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You can lead a head to knowledge but you can't make it think. One day I'll know it all, but till then, I'll keep learning.
Any links to any sites or products is not an endorsement by me or do I gain any financial reward for such links
T1 Terry, How many panels have you got to generate 1700w and how much does each panel generate mate? Can you give us some idea of prices and brands also.Thanks.
