Talk:3044: Humidifier Review

Somehow, the text here makes me think of the air-source heat pump equivalent, i.e. Why shouldn't it be the case that humidifiers condense outside air and suck the water out of it, and then pump that water into the conditioned space and re-disperse it? Of course, the obvious answer is that doing so would be frightfully expensive and entirely unnecessary given the cost of that kind of condensation compared to the cost of water. And, of course, the capital cost for the minor plumbing to install a domestic water line to the humidifier is going to be far smaller than the capital cost of a heat pump apparatus (or whatever) to generate condensation outdoors and then pump it into the conditioned space. JohnHawkinson (talk) 00:13, 30 January 2025 (UTC)

Also it would still need that amount of water, just that the operator doesn't need to add it manually. --Lupo (talk) 12:43, 30 January 2025 (UTC)

This reminds me of the whole thing with the VTuber Sakura Miko where she was using a humidifier without knowing she had to fill the tank with water for at least a year 172.70.223.184 01:10, 30 January 2025 (UTC)

Related to that, just a week ago Sharp announced a humidifier collaboration with Sakura Miko, and as part of the PR they made a formal apology for "Not being able to use magic to make a waterless humidifier" 198.41.236.162 (talk) 02:01, 30 January 2025 (please sign your comments with ~~~~)

I'm waiting for the HydroPro High-Efficiency Electric Kettle™ which is connected to a heat pump to heat your tea water. 172.71.170.192 04:39, 30 January 2025 (UTC)

High-Efficiency Electric Kettle™ which is connected to a heat pump to heat your tea water You jest; but in the US we get hot water at the sink faucet. There is a push to do it all with heat-pumps, save a hundred bucks a year! (They say more, but I've compared our use.) But the heatpumps are $2K. A dumb resistor tank is $500. Payback is well in excess of 5 years. And it would make my cold cellar even colder, thus damper. --PRR (talk) 06:17, 30 January 2025 (UTC)

Just install a dehumidifier. And feed the water that the dehumidifier into the water heater. Infinite hot water! Also, enormous electric bills. Also legionnaire's disease. RegularSizedGuy (talk) 06:22, 30 January 2025 (UTC)

All dehumidifiers and all humidifiers must be connected together for the ultimate harmony! (If there turns out to be a net need/excess, we can work out what to do... We probably have a whole load of piping leading all over the planet, by this time, so we can find the most optimal source/sink.) 172.70.162.33 13:32, 30 January 2025 (UTC)

Another device which is often getting negative reviews for not breaking laws of physics is car. Not only that, EU laws for 2035 are basically making against the EU law for a new car to not break laws of physics. -- Hkmaly (talk) 09:08, 30 January 2025 (UTC)

The only two transportation options that do not either break the laws of physics or ultimately prove either unfeasible or useless against carbon dioxide spiking and resulting anthropogenic climate change have five toes on each one. 162.158.42.87 15:34, 30 January 2025 (UTC)

Cycling burns about half the calories per mile as walking. Which one has the lower overall carbon footprint depends on a lot of factors, including the carbon created for food production, bicycle production, the lifetime and maintenance requirements for the bike, the health benefits leading to a longer life (and hence more carbon production) for the walker/rider, etc. But if you already have a bike, it's probably more efficient to ride than it is to walk. 162.158.62.169 17:59, 30 January 2025 (UTC)

Except that this isn't how humans work. Just because you reduce your calorie expenditure on transportation doesn't mean you reduce your calorie expenditure overall - it will just get expended somewhere else. Besides which, calorie expenditure isn't tied to calorie consumption. Even if you were able to reduce your overall expenditure, it would make no difference at all to your carbon footprint. To do that you'd need to reduce how much you eat (or change its composition).141.101.98.7 09:33, 31 January 2025 (UTC)

Zero stars:

Dried out my house when I was already dehydrated

- BButton1869 PotatoGod (talk) 20:42, 30 January 2025 (UTC)

I'm not sure conservation of mass is the right law here. It would be possible to increase humidity without using water or violating the conservation of mass, such as by burning hydrogen. The relevant law here is the conservation of molecular quantity. Except . . . that's not a law (hence my hydrogen combustion counterexample). What's going on here is that you cannot change the amount of water without a chemical reaction, essentially by definition. So any humidifier that operates in a purely mechanical manner without reacting any chemicals will "conserve water" in this sense.

In the real world, every humidifier works this way, and it would rarely make sense to do it any other way. In fact, you are more likely to see oxygen made from water (e.g. in a submarine or space station) than vice-versa. However, if you have a natural gas furnace, that will produce water, and in principle, there's no reason that produced water could not be fed into a humidifier, thus saving on the water bill. Highly efficient furnaces capture the water without letting it out the flu, not because they want to salvage the water, but to increase efficiency. Still, the water is there, so this isn't a physically or even practically impossible demand. EebstertheGreat (talk) 01:28, 31 January 2025 (UTC)

"...a natural gas furnace, that will produce water, .....could ...be fed into a humidifier," There are gas appliances, cookers and room heaters, also gas clothes dryers, which can vent damp exhaust directly to the room. But even when I paid for water, I never fretted about the cost of humidity. And I already run a dehumidifier 7 months a year. And the hi-eff gas burners and the dehumidifier in a damp basement already force me to maintain a non-ignorable pump infrastructure to lift water out of the cellar. -- So unlike the joker in the cartoon, I am hyper-aware of my humidity.--PRR (talk) 04:39, 31 January 2025 (UTC)