81–90 of 101 posts
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Also if you live in an area with low humidity look into getting a swamp cooler. It won’t make the air as cold as AC but I personally prefer it
Swamp coolers can get really nasty and smelly due to being the perfect breeding ground for spores and other nasties.
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Swamp coolers can get really nasty and smelly due to being the perfect breeding ground for spores and other nasties.
same as humidifiers and they make bacteriostatic additives that help control this (although eventually it does need to be cleaned regardless).
In the UK, 'trickle vents' are mandated in new build houses. They're little vents placed above external facing windows and doors that can be opened and somewhat closed. The goal is to allow moisture to escape to prevent mould but they also obviously allow constant airflow. They don't really allow bugs to get in either. video: https://www.youtube.com/watch?v=6_2SdLEbHcM
In the UK, trickle vents above windows and doors were historically used for passive ventilation to prevent mould by allowing airflow. However, modern building practices and regulations, including stringent air tightness requirements mandated by Building Control, have shifted focus towards more efficient ventilation solutions like Mechanical Ventilation with Heat Recovery (MVHR) systems. While trickle vents are still…
Energy recovery ventilator. It will exchange indoor air with outdoor air while maintaining indoor heat and humidity. Unfortunately small window mounted models are hard to come by. Most are whole-home systems.
I’ve installed mine in about 6hours (but I do have moderately accessible attic).
They are somewhat cheap too - at $1k or so.
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> a window is one of the best options. Add a fan and it's hard to find something more optimal and cheap for this problem.
Also, don’t put the fan directly in the window, but a leave a small gap between the fan and the window to take advantage of Bernoulli’s principle
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> For the kind of technology available to us, it could cost up to $100 a day to buy enough lime soda to filter out the CO2. Doing some napkin math based on quickly googled(maybe incorrect) numbers, 100g of lime soda can absorb 10-20L of CO2 depending on the setup. Random offer off a Google search is $30 for 1kg, and I can get it cheaper locally. To go from 1200 ppm to atmospheric 421, you need to remove ~0.8L/m³. For…
Thanks for the math. The parent comment has been slightly edited. I'd ideally want the CO2 to be the preindustrial level of under 300 ppm. The reason is that I suspect it could lead to maximum alertness and a feeling of well-being. Note that some ventilation still is needed during the day to get O2 and remove VOCs, so the calculations are affected. In your calculation, remember to account for the presence of people w…
I doubt you'd have much benefit going down to 300 instead of 400, and it introduces a whole other problem - aiming at sub-ambient CO2 targets makes ventilation increase the amount of scrubbing you need to do instead of decreasing it. I imagine the increase in cost would be massive.
But yeah it'd probably be better to base the calculations on co2 breathed out by people. But like I said, that's just some quick, likely incorrect math to land in the right ballpark.
Earlier quoted context omitted.
In the UK, trickle vents above windows and doors were historically used for passive ventilation to prevent mould by allowing airflow. However, modern building practices and regulations, including stringent air tightness requirements mandated by Building Control, have shifted focus towards more efficient ventilation solutions like Mechanical Ventilation with Heat Recovery (MVHR) systems. While trickle vents are still…
We're in the process of getting windows replaced, and the window company said they are now mandatory on all new and replacement windows. Apparently, it became law in June 2022.
> When windows are replaced, a background ventilator or ‘trickle vent’ should be placed in the new window. This will replace any ventilation you lost, when installing a new window, because your previous window was leaky. If replacing your window did not reduce the amount of useful ventilation, this should be proven, and more ventilation is not needed.
[0] https://www.gov.uk/government/publications/home-user-guide-t...
Energy recovery ventilator. It will exchange indoor air with outdoor air while maintaining indoor heat and humidity. Unfortunately small window mounted models are hard to come by. Most are whole-home systems.
Often times the best way to solve the OPs problem is just to run the central fan (assuming there is central air) as that will exchange bedroom air with the rest of the house, which assuming the house is significantly larger than the bedroom, will basically solve the problem.
If you are going to do an ERV I would recommend adding a filter box for allergens/dust/etc assuming the ERV you select doesn’t have one built in. Not expensive, it’s just a sheet metal box you put filters in, HVAC guys buy and make them all the time.
If you want to spend even less money, and don’t have central air, you can install a bathroom fan in the ceiling/wall of the bedroom, and have it vent to the rest of the house but this takes a bit of thought with regards to airflow and how the air will mix. But even if all you are doing is effectively doubling the volume of your bedroom, that makes a big difference.