A Guy Walks into an Apple Store

Re:A Guy Walks into an Apple Store by sgerenser on Tuesday October 27, 2020 @07:41PM (#24913351)

Well put. I’ve noticed a definite condescension towards those “wasteful” people in climates that virtually require air conditioning in the summer (e.g. almost anywhere in the Southern US). Yet they conveniently forget that heating in cold climates is usually more energy intensive than A/C is in warm climates.

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Re:A Guy Walks into an Apple Store by bigbubba on Tuesday October 27, 2020 @07:47PM (#24913392)

Or you can just get a sweatter and let the house get cold. So long as the pipes don't freeze, a furnace can easily be run less without a substantial reduction in comfort. On the other hand when it's hot, there is only so nude you can get.

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Re:A Guy Walks into an Apple Store by rangoon626 on Tuesday October 27, 2020 @11:30PM (#24914824)

Winter is already miserable enough with a warm house

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Re:A Guy Walks into an Apple Store by Talanes on Tuesday October 27, 2020 @11:50PM (#24914957)

Humans evolved to handle heat, we created tools to handle cold.

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Re:A Guy Walks into an Apple Store by bigbubba on Wednesday October 28, 2020 @12:36PM (#24920842)

Unfortunately our secret weapon for handling heat has a weakness: humidity.

Sweating just not good enough for me, even when it's dry. I can cope with it, it's not like being hot would kill me (within reason and if I stay hydrated), but it has a serious impact on my performance. When it's hot my brain gets foggy and my thoughts slow. Maybe I could still operate at a caveman level of performance in that sort of weather, but I couldn't do my job.

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Re:A Guy Walks into an Apple Store by imtringued on Wednesday October 28, 2020 @01:59AM (#24915715)

Thermal power plants generate lots of waste heat that can be used for district heating. If you don't use that waste heat it will still be there. Worse if you need electricity for cooling you end up with even more waste heat.

Your assumption falls flat because a lot of people don't need to generate extra heat from electricity, they already have too much of it.

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Re:A Guy Walks into an Apple Store by ashtonkem on Wednesday October 28, 2020 @04:49AM (#24916646)

First off, AC is a heat pump, and heat pumps are always much more efficient than direct heating. A well designed AC system can be up to 500% efficient, since it only needs to move heat and not generate it.

Secondly, municipal heat is pretty rare in the US; few cities have it and the number keeps getting smaller each year. What few municipal heat systems that do exist are largely for business districts too, unless if you live in NYC as an American you most likely will be using either AC or forced air natural gas heat. Given the choice between the two[0], AC would be the best possible one from an efficiency perspective.

0: Heat pumps can be used to heat too, which is even better. Its my hope that heat pumps will become more common in the coming decades to assist in electrification.

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Re:A Guy Walks into an Apple Store by majewsky on Wednesday October 28, 2020 @07:11AM (#24917431)

> few cities have [municipal heat] and the number keeps getting smaller each year

I'm assuming by "municipal heat" you mean district heating. Can you explain why those systems keep getting rarer in the US? Over here in Europe, we are investing a significant amount of money in expanding those systems and connecting more houses.

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Re:A Guy Walks into an Apple Store by sgerenser on Wednesday October 28, 2020 @06:24PM (#24924805)

Natural gas is dirt cheap in the US. Except in extremely dense urban environments with the physical plant already in place (NYC is the only one I can think of), it just would never pay back financially to use district heating. And if greenness/efficiency is the goal, using extremely efficient heat pumps and solar are probably a bigger win in most areas of the U.S.

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Re:A Guy Walks into an Apple Store by majewsky on Thursday October 29, 2020 @11:43AM (#24931706)

My own district heat is also coming from a natural heat power plant, FWIW. I wager it's more efficient because they also produce electrical power (the heat is what remains in the steam after it's been run over the turbine to generate electricity).

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Re:A Guy Walks into an Apple Store by sgerenser on Wednesday October 28, 2020 @06:25PM (#24924829)

https://www.npr.org/templates/story/story.php?storyId=139417...

And district heating basically doesn’t exist in the US outside of NYC.

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