• infeeeee@lemmy.zip
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    2 days ago

    It’s annoying that they used a stupid ai generated diagram for how the bed works which is simply WRONG.

    The illustration from the article:

    click to see ai slop

    The duct under the bed doesn’t go anywhere, it’s not connected to the chimney either.

    With a quick 2 second search I could find very basic but clear diagrams which shows how actually this bed works, the search term was “kang bed diagram”:

    Another drawing:

    People forgot how to think and search? Or the author doesn’t know how these beds work?

    Now, as a researcher in architecture and construction at a British university

    I assume the author is a trained architect he should know how to draw, and recreating a diagram like this in a CAD program is like a couple of minutes work, if he can’t use other people’s drawings for some reason.

    • Multiplexer@discuss.tchncs.de
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      2 days ago

      Would have expected the article to refer to that, as the concept is quite similar.

      Instead it mentioned Roman hypocausts as an example, which in reality are actually considered one of the first types of central heating, so somewhat the opposite of what they were trying to get at in the article…

      • givesomefucks@lemmy.world
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        2 days ago

        Whether or not a building has central heating depends on the building, not the city.

        But when the “secret” is beds built on top of a fire, it’s hard to get more centralized than literally sleeping over a fire…

        • Sturgist@lemmy.ca
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          2 days ago

          Sorry for being pedantic, buuut…

          But when the “secret” is beds built on top of a fire, it’s hard to get more centralized than literally sleeping over a fire…

          This is the opposite of centralised heating, this is localised heating. Centralised heating would be the fire in the basement and a fan blowing the hot air into every room…you know…like centralised heating…

          • givesomefucks@lemmy.world
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            2 days ago

            “Centralized” means all the heat is coming from a single location…

            Distributing the heat is often assumed because we tend to heat entire houses.

            In areas where they use bed furnances, it’s almost always a single bed for the whole family and that is the only furnace in operation over the night. I’m going off memory but I believe in the day time most of the beds store and transform into a living room.

            Again, with the same bed furnace being the only one in the structure.

            Meeting the pedantic definition of “centralized heating”.

            • [deleted]@piefed.world
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              2 days ago

              Centralized heating means heating multiple rooms or locations from a central heating source. Distributing the heat is the entire reason for the ‘centralized’ part of the term.

              Like a fireplace that is open two rooms on opposite sides of a wall could be a stretch of the definition.

                • [deleted]@piefed.world
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                  2 days ago

                  HVAC is one type of central heating system. I mean, your link has ‘centeal heating’ in the name.

                  So is a centralized system that uses steam to heat disconnected buildings.

                  Go find a definition of central heating that doesn’t include heating more than one location or rooms.

                • SchmidtGenetics@lemmy.world
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                  2 days ago

                  Top of your own link mate.

                  Central heating is defined as a system that provides warmth to the entire interior of a building from a single point, using methods such as hot water, steam, or forced air to distribute heat to various rooms

                  It requires mechanical means to move the heat.

                  “HVAC units” is an integral system that can have an ac unit installed on it.

                  A boiler can be central heat, but it’s not an hvac unit, but it does fall under the broader “Heating/Venting/air condition” that makes up the term.

                • papalonian@lemmy.world
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                  2 days ago

                  Central heating is defined as a system that provides warmth to the entire interior of a building from a single point

                  Why’d you link this to defend your point

        • Multiplexer@discuss.tchncs.de
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          2 days ago

          Communal heating is the defacto standard throughout most of Russia.
          And, as a person also living in a city district with communal heating, I can assure you that the typical (or even mandatory) type of heating does indeed very often depend on which city it is in.

          But perhaps you are confused about the terminology: heating beds or rooms directly with the combustibles is the opposite of central heating…

          • givesomefucks@lemmy.world
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            2 days ago

            Centralized heating just means a single source of heat, heats the entire building…

            You know how old timey houses have 27 chimneys? That’s non centralized heating.

            A 2 room dwelling that has a single source of heat is still centralized heating even if relies on natural air flow to heat the second room.

            Which is why I said sleeping on a furnace is the most direct (in distance at least) use of centralized heating

        • SchmidtGenetics@lemmy.world
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          2 days ago

          Municipality enforces building codes…

          If building codes require central heating, the building can’t just decide not to have it.

    • infeeeee@lemmy.zip
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      2 days ago

      Celsius and Fahrenheit scales intersect at -40, as -40 °F equals to -40 °C

      -30 and -22 are relatively close to that, closer than most temperatures people use in everyday life, hence the smaller than expected difference.

      • peopleproblems@lemmy.world
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        1 day ago

        I’m referring to the title. I don’t think in metric so I had to do the math to see what it was in freedom units.

        Harbin is NOT the world’s coldest city. Actually, I can pull up historical weather data and tell you that in January, Harbin is the 7th coldest average with an average of -3F.

        The first two are in Russia, and the third is in Canada.

        -22F is frigid, but we used to get that pretty frequently in the past. I think in 2019 Minneapolis had -27F. I saw -23F last week.

        International Falls, MN has a record of -55F, Snag, Yukon has a record of -81F, and Oymyakon, Russia has a record of -91F (1924, more recently in 2018 it was -88F).