6 ms·
I wonder if this has a negative effect on the amount of fresh air that they get
by jhloa2 7y ago
I wonder if this has a negative effect on the amount of fresh air that they get
- telotortium 7y agoNo reason a ventilation fan can't be installed - that's standard on modern air-conditioned and insulated houses (a "whole-house fan") precisely in order to rotate the air.
- mevile 7y agoThat might help, but it's not quite the same as a nice summer breeze flowing through your house.
- DavidAdams 7y agoIn the summer, the greenhouse opens up.
- BubRoss 7y agoIt literally is a summer breeze flowing through your house.
- bjourne 7y agoYes, but ventilating the house itself plus the surrounding greenhouse is much more expensive than just ventilating the house itself. Reason being that the volume of air is much larger.
- adrianmonk 7y agoI'm not an expert, but all greenhouses I've personally seen have natural ventilation with vents high up (such as at the peak of the roof) and near the ground. The greenhouse effect makes the air inside a lot warmer than outside. This reduces its density, and it becomes buoyant and spills out the roof vent. There may also be fans, but you can get some ventilation for free (energy-wise).
- NickNameNick 7y agoYou can see the open vents on the ridge in the first photo.
- tigershark 7y agoThen they will lose all the advantages of the green house if they get cold air from outside...
- dagss 7y agoBalanced ventilation (not sure what the English term is) is standard these days and recovers about 90% of the energy (heats air going in using the air going out). I have one at home. Dont know if they have one set up, but they could. But possibly the sun already warms it enough even in winter that it is not needed even with natural ventilation.
- jogjayr 7y ago> Balanced ventilation (not sure what the English term is) Heat exchanger: https://en.wikipedia.org/wiki/Heat_exchanger#HVAC_air_coils https://en.wikipedia.org/wiki/Heat_exchanger#HVAC_air_coils
- dagss 7y agoThat may be. The word we use is more a property of the ventilation system ... that you blow as much air into the house as out of it, active airflow in both directions. (As opposed to older ventilation where only exhaust has a fan.) This facilitates plugging in a heat exchanger. To be clear I did not mean HVAC, which requires (some) energy in itself. At home I do not have HVAC. However, the outbound air passes through a rotating metal structure that sucks up the heat from outbound air and releases it into the colder inbound air. Just using the temperature gradient that is there naturally. Passive energy transfer. Same principle can be used with hot water (e.g. from showers). Then one can put HVAC on top of this for active warming.
- ngold 7y agoI wonder how much fresh air they get from all the plants pumping oxygen out?
- seanmcdirmid 7y agoPlants produce oxygen when they grow, and you would need to grow about 8 pounds a day to supply oxygen for one human. See https://www.gardenmyths.com/houseplants-increase-oxygen-levels/ https://www.gardenmyths.com/houseplants-increase-oxygen-leve...
- pram 7y agoI also wonder if the increased humidity increases the chance for mold.
- furtive808 7y agoMost greenhouses have ventilation windows, often using a wax piston to automatically open/close windows based on the temperature.
- noir_lord 7y agoHad never seen a wax piston, that’s a tremendously elegant design.
- BubRoss 7y agoHow does a house get fresh air?
- ptaipale 7y agoIn the Nordics, houses (that aren't very old) don't get new air through windows; the air exchange is through a central ventilation system in and out, and modern houses have a heat exchanger to collect the heat from outgoing air and transfer it to incoming air. (The need to cool down residential houses is extremely rare). At least in Finland, newish office houses typically don't even have windows that can be opened; this seems to be a surprise to any foreign visitors.
- BubRoss 7y agoWhich part can't be done here?
- ptaipale 7y agoNot sure what you mean, but the reason for sealed windows is that building code mandates all ventilation through heat exchangers for energy efficiency, and having windows open would completely ruin the designed airflow.
- chupasaurus 7y ago> At least in Finland, newish office houses typically don't even have windows that can be opened. That's because the costs for heating of the building during winter are way cheaper than a better thermal isolation of windows and a good ventilation system combined.
- ptaipale 7y agoI think you express it the wrong way round. The windows cannot be opened, because that way they can be made better for thermal isolation, which is obviously a major design criteria in cold climate.
- sunjieming 7y agoI wonder if the photosynthesis from all of the plants would make the air feel fresher
- pvaldes 7y agoFresh air is created by plants and CO2 is taken from the air by plants, a greenhouse has plants so... probably a good amount of oxigen there Molds are a problem and there is another, for rodents, mosquitos and cockroaches this is a dream made true. Spiders can take mosquitos easily, but the other two will need a plan
- TkTech 7y agoI imagine it's not much different from a regular residential greenhouse, in which case the plan is to throw a sufficient number of cats in there.
- noir_lord 7y agoNot sure people in glass houses should be throwing cats. Mine would love that environment I’m sure though.
- _jal 7y agoThey are somewhat softer than stones, but yes, cat throwing is rarely called for. My mother has a decent sized greenhouse. Her cats spend most of the winter in there by choice - they love it.
- aasasd 7y agoThe plan: https://i.imgur.com/XcJSDlE.jpg https://i.imgur.com/XcJSDlE.jpg
- mncharity 7y ago> Fresh air is created by plants and CO2 is taken from the air by plants Plants can be net CO2 consumers, but they burn O2 to CO2 just like you. Tropical forests are net CO2 producers for most of the day, except for a few hours around noon, but that's enough to become net consumers averaged over the day. Occasionally someone fills their room with plants, and then puzzles over having high CO2 levels.