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Post by segfault1361 on Jan 8, 2024 21:10:21 GMT -5
In my place in Toronto it's a definite necessity, living in a high floor in a highrise condo with west-facing windows. I like keeping it at run at 23-24C but keep it off unless it hits 26C or higher, or else it turns on too easily (like when the outdoor temp is only 20C and sunny but with an easterly wind, meaning that the cool air couldn't get in the west-facing windows)
That being said, I've lived in condos where I didn't need it as well, in a low floor with buildings blocking the sunlight and getting the AC effect from adjacent units. I remember there was a pretty hot summer where I turned it on only 2-3 times all year.
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Post by Ethereal on Jan 8, 2024 22:22:53 GMT -5
BOM made this map? Looks like the Sydney metro is in the subtropical zone here. Lmao |
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Post by Milwaukee Mass Murderer on Jan 8, 2024 23:02:40 GMT -5
I wonder what they are calling "efficient". 22C in the tropics seems like the opposite of that. And setting it to 27C in Hobart, it would barely ever turn on.
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Post by paddy234 on Jan 9, 2024 6:28:13 GMT -5
OK all you AC pussies... take note !! What is the most energy-efficient aircon temperature this summer? ( source: Weatherzone )  We're well into summer, and the air conditionings are blasting nationwide after what has been the fourth-warmest December on record. Many may have heard the spiel of the “18-21ºC” range being the best or most efficient. But this is not entirely true. In fact, the most energy efficient temperature ranges are entirely in the 20's range. Turns out, every degree increase in temperature can save up to 10% on energy usage.  The climate is a large factor in determining the most efficient temperature for your air con. Australia is split into many differing climate zones, shown in the map.  Starting in the tropics, it's important to have an efficient setting to regulate the oppressive summertime humidity, since the air conditioner will likely be running most of the time. To rest easy, a temperature setting of 22-25ºC is the most efficient range. Across most of central Australia, the arid to semi-arid climates, characterised by harsh, dry and often dusty summers mean filters must be checked regularly. In these areas, the most efficient temperature setting is between 21-23ºC. Moving to subtropical parts of southeast Queensland and elevated New South Wales, the most efficient temperature setting is between 24-25ºC. These areas can still receive muggy and humid summers, so whilst this range might be surprisingly high, it means the system will not have to work as hard to maintain a comfortable temperature. Oceanic climates of the southeast corner can have some of the most varied weather conditions in summer, being both elevated and inland. In these areas, the most efficient temperature setting is between 26-27ºC. Parts of southern Victoria may experience heatwave conditions, so in these instances, 23-24ºC is efficient but also comfortable. Finally, for Mediterranean climates along the Bight and southwest coasts, drier summers mean humidity is nowhere near as oppressive. Summertime air conditioning is most efficient when the dial is between 23-24ºC. Here in Perth we use 26°C on our ducted air-con system. We thought this would save us some money. Instead we have still used 600kw of power in merely 3 weeks. Solar might be the only way to go. |
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Post by greysrigging on Jan 9, 2024 6:49:36 GMT -5
My son has a solar system with a 15K Tesla battery..... runs swimming pool and AC in rooms ( rented out ) constantly for $40.00 a month.... pretty good actually
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Post by paddy234 on Jan 9, 2024 7:19:46 GMT -5
My son has a solar system with a 15K Tesla battery..... runs swimming pool and AC in rooms ( rented out ) constantly for $40.00 a month.... pretty good actually Yea we are getting someone out to have a look on Monday. There's no way I'm paying $350 a month lol. That's some serious savings |
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Post by AJ1013 on Jan 9, 2024 7:23:13 GMT -5
My son has a solar system with a 15K Tesla battery..... runs swimming pool and AC in rooms ( rented out ) constantly for $40.00 a month.... pretty good actually Yea we are getting someone out to have a look on Monday. There's no way I'm paying $350 a month lol. That's some serious savings How the hell are you paying $350 a month in Perth? Our bill isn’t that high cooling to 20C in Miami. |
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Post by tompas on Jan 9, 2024 8:14:22 GMT -5
I usually don't use it during the day, except if it's uncomfortably hot inside the house. I can bear the heat pretty well during the day.
Another story is when I go to sleep. It's stuffy and hot inside, and I'm lying down on my bed and sweating like a pig, feeling hot and wet as if I came out of a sauna and having trouble falling asleep.
So I set it to 20 usually 1-2 h before I go to sleep to get some cooler air. As far as I can remember I always liked sleeping at lower/colder temps even in the winter.
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Post by dunnowhattoputhere on Jan 9, 2024 8:42:11 GMT -5
In July 2019, we had a day where it reached 35C and the temperature fell no lower than 22C the following morning. This was on top of several hot, sunny days beforehand. It’s times like that when A/C becomes an attractive prospect - but it’s such a large expense that it would be incredibly difficult to justify for the sake of a couple of days a year. The summer of 2022 and highs of 40C made the prospect of A/C even more appealing. The summer of 2023 reminded me that it’s still not necessary & would be a waste of money. Maybe I’ll look into one of those portable A/C units though. |
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Post by paddy234 on Jan 9, 2024 8:54:39 GMT -5
Yea we are getting someone out to have a look on Monday. There's no way I'm paying $350 a month lol. That's some serious savings How the hell are you paying $350 a month in Perth? Our bill isn’t that high cooling to 20C in Miami. We recently moved into our new home. It has a 14kw ducted air-con system. We thought and was told it would be pretty efficient to run. We only have a few zones on at once when we turn it on however our power usage is still between 25-40kw per day. The power company charges $0.31 per KW. Our power on average is $11.50 per day. Will definitely need Solar installed pretty soon to offset this. To be fair there has been some very hot days recently How much are you paying for KW in Miami and how much power per day are you using? |
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Post by AJ1013 on Jan 9, 2024 9:06:42 GMT -5
How the hell are you paying $350 a month in Perth? Our bill isn’t that high cooling to 20C in Miami. We recently moved into our new home. It has a 14kw ducted air-con system. We thought and was told it would be pretty efficient to run. We only have a few zones on at once when we turn it on however our power usage is still between 25-40kw per day. The power company charges $0.31 per KW. Our power on average is $11.50 per day. Will definitely need Solar installed pretty soon to offset this. To be fair there has been some very hot days recently How much are you paying for KW in Miami and how much power per day are you using? I believe power is $0.12 per KW. |
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Post by paddy234 on Jan 9, 2024 9:19:33 GMT -5
We recently moved into our new home. It has a 14kw ducted air-con system. We thought and was told it would be pretty efficient to run. We only have a few zones on at once when we turn it on however our power usage is still between 25-40kw per day. The power company charges $0.31 per KW. Our power on average is $11.50 per day. Will definitely need Solar installed pretty soon to offset this. To be fair there has been some very hot days recently How much are you paying for KW in Miami and how much power per day are you using? I believe power is $0.12 per KW. If that was our rate here in Perth our monthly powerbill would be $115 on average for the heaviest usage. There is only one power company here in WA and they keep increasing their rates. It was $0.27 per KW a year ago Of course this doesn't include that the power company charges $33 per month for service usage on top of the bill |
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Post by greysrigging on Jan 9, 2024 16:47:18 GMT -5
Easily +$300 a month in Darwin if running swimming pool and AC 24/7.....
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Post by Milwaukee Mass Murderer on Jan 9, 2024 20:17:57 GMT -5
With those prices and Perth's climate, solar looks very appealing. If you can handle the start-up cost.
Solar isn't common here since the main cost is winter heating when the sun is lowest. It's growing fast though.
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Post by CRISPR on Jan 16, 2024 17:24:35 GMT -5
Yes, but it is optional in most summer days (as the temperatures are not excessive and the breeze is effective). On the hottest summer days, I actually would use it. My parents, both with little heat resistance, turn on the AC at 23ºC days!
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