My microwave has a fish setting I shit you not.
this post was submitted on 08 Aug 2024
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I'd prefer a microwave with zsh, honestly
I'm more of a good ol' bash kind of guy. Keep It Stupid Simple, they say.
Don't bash your microwave
Refrigerators, dish washers, washer/dryers, any appliance really. But I want the test period to be 90 days, it's a good length to properly use and determine if something is decent or a steaming pile of shit.
HVAC systems.
When my wife and I we had to replace our forced air furnace and central air system in the late autumn due to carbon monoxide literally the evening before our son was to be born, I felt under pressure to get something in place.
I told them I needed a more powerful air conditioner for all the unique heat-generating equipment in my basement, especially since our old system had trouble keeping up. They said that the new unit was more than enough for the square footage. I reiterated again, that air conditioners don't cool square footage, they cool BTU's, and the average home doesn't have a grow op and server farm in the basement generating significant heat. Then, they decided to hit me with the old "I've been doing this for {x} decades" speech.
Needless to say, I've had to consolidate servers, stop indoor gardening, replace the bulbs in the house with those shitty blue-hued LED's that can't dim right (and dimmer switches to handle the change in load characteristics), take the weather into account when cooking indoors and clean both sets of A/C coils on a more frequent basis. The air conditioner still can't keep up and when we have a string of hot days, we can't always count on the cooler evenings to get the house back down to "room temperature".
Oh, and now our old chimney drips water into the basement.
Without knowing the heat load calculation or what was installed it's obviously all guesses. But the fact that temps are easily reaching 40+ or 105+, no AC is going to transfer the heat from your house to the outdoors. It's basic science.
Air conditioners aren't actually cooling your house, but instead it's relocating heat. So if it's too hot outside, it won't do anything. heat transfer can only continue until the two objects (condenser outside and the ambient air) have reached thermal equilibrium and are at the same temperature. Once they balance out, it won't do anything.
Infact, getting MORE BTUs on your unit is actually a bad thing since it won't have time to dehumidify your house. This will lead to short cycling of the AC (it'll turn on and off a lot) and you never get cooling. The amount of homeowners that demanded bigger sizes units only to get pissed it's worse is astounding.
The indoor gardening also is TERRIBLE for air conditioners since your feeding so much moisture in the air.
You should look into variable speed compressors and the temps at which refrigerants work. Youβre correct on many points but misinformed on others.
I know about inverter compressors, but they cannot defy the laws of thermo dynamics no matter how fast of slow they run. It's impossible. If it's too hot outside, the heat will not escape the condenser and will go right back inside rendering it useless and not cooling.
You will only see benefit with the inverter because it can slow down when it's not hot. If the compressor reaches 45degrees, and it's 40 degrees outside with the condenser in direct sun, you can't extracting much heat meaning it'll take forever to cool.
Refrigerant temps will make a difference, but they still have their limits too. All depends on what's being used. I assume OP was sold R410, low chance they were given the newer r32 or r454b replacements.
Youβre just flatly wrong, the spec page for the humdrum mini split I pulled up first has a max outdoor max ambient operating temp of 52.78c (127f)
My point in bringing up refrigerant temps was to get you to look into it. Heat exchangers are more effective than you believe. No one is trying to convince you that these units defy the laws of physics.
The grow tent was mostly self-contained and humidity-controlled and monitored inside and out. It actually had to be indoors because of our short growing season, risk of germination from nearby industrial crops, and federal licensing requirements for the type of plant at the time. Regardless, the HVAC experts were here on-site and they could have opened their eyes to what I was telling them. There's was no heat load calculation. They said "this is the unit we install for your type of house and it's more than enough. Trust me, I've been doing this for..." etc. etc.
Of course condensers and evaporator coils work by pushing entropy around. I'm not sure what in my comment would have led you to believe I thought otherwise.
Short cycling would be a happy problem at this point. Over the past month the shortest cycle was on a 16 C day, when the A/C ran from 6:41am to 9:15am, and the longest were on those 32 C days when it started at roughly 7:45am and didn't finish cooling until 5am the next day. You suggest that it won't do anything on a hot day, but the temperature gradient indoors when the outside temperature is high is measurably lower when the system is cooling as compared to idle.
Maybe the HVAC guy was thinking I was just one of those same customers you're complaining about. Nobody's asking for a system ridiculously overpowered -- Just properly powered. I understand the value of properly sizing a system. For instance, I know that a properly-sized furnace should run nonstop on the coldest day of the year. I also know that you don't have an entire month's worth of "coldest day of the year"
My house can be 60 degree warmer than the outside temperature in the winter, so I just have to point the blame somewhere when it can't stay 10 degree cooler than the outside throughout summer. And yes, I know cooling is a lot more complex than heating, but I'm giving the A/C a 50 degree headstart.
...And that is why I think there should be a trial period for HVAC systems.
Most comments have covered the biggest ones, but I'm going with a toaster. I have bought some really fancy toasters that can't consistently toast a slice or bread or bagel and burn the edges and I've have some non-name junk tier that do great. It really seems like this should be a solved problem at this point, but nope.
Food