3 ms·

> So if you're in a "tight" house, make sure to sleep with the windows open! The right answer is to switch on your heat-recuperating ventilation.

Abekkus 7y ago
The right answer is not to have such a tight house. Instead of spending resources to tighten it, then spending more resources to install a compensating appliance.
- awinder 7y ago
  Is that accurate though? So I live in recent new construction, and run the house fan for long periods of time/overnight, and the power bills are still the lowest I’ve experienced. Fans take very little power to run, compared to burning gas/running ac to achieve desired temperature...
dillonmckay 7y ago
or ERV.
TheRealBill 7y ago
Or get yourself some sansevieria trifasciata plants. Depending on the size of your bedroom, 3-4 should so it (about 1 per 100 square feet of room). They'll convert CO2 to O2 all night - and clean the air a bit as well. They are also easy to maintain.
- orthoxerox 7y ago
  How exactly do they do that without sunlight? Also, just how big are American bedrooms? Mine is 172 sqf and I consider it a big one.
  - TheRealBill 7y ago
    They use of a different mechanism to power it by delay. They use a second CO2 fixation pathway known as Crassulacean Acid Metabolism (CAM). Basically they "store" the energy by day, then open up at night and to their thing. Only 5-6% of plants do it this way and, IIRC, almost all of those are succulents or desert plants. This pathway helps preserve water. https://en.wikipedia.org/wiki/Crassulacean_acid_metabolism https://en.wikipedia.org/wiki/Crassulacean_acid_metabolism is a decent introduction to it. Also, most "kid" bedrooms are around 10x10 or so, but some master bedrooms can be rather ... large. I said 3-4 to cover both not being the only one in there and the size of the plants. The tests are done on or projected to full-size mature plants, but if you go to the store and buy them they are rarely full size. They'll range from 6-8" babies to about 1/3-1/2 in size (1-2'). For the "full effect" from the reports they size based on a 4' tall plant.

Abekkus 7y ago

The right answer is not to have such a tight house. Instead of spending resources to tighten it, then spending more resources to install a compensating appliance.

awinder 7y ago
Is that accurate though? So I live in recent new construction, and run the house fan for long periods of time/overnight, and the power bills are still the lowest I’ve experienced. Fans take very little power to run, compared to burning gas/running ac to achieve desired temperature...

dillonmckay 7y ago

or ERV.

TheRealBill 7y ago

Or get yourself some sansevieria trifasciata plants. Depending on the size of your bedroom, 3-4 should so it (about 1 per 100 square feet of room). They'll convert CO2 to O2 all night - and clean the air a bit as well. They are also easy to maintain.

orthoxerox 7y ago
How exactly do they do that without sunlight? Also, just how big are American bedrooms? Mine is 172 sqf and I consider it a big one.
- TheRealBill 7y ago
  They use of a different mechanism to power it by delay. They use a second CO2 fixation pathway known as Crassulacean Acid Metabolism (CAM). Basically they "store" the energy by day, then open up at night and to their thing. Only 5-6% of plants do it this way and, IIRC, almost all of those are succulents or desert plants. This pathway helps preserve water. https://en.wikipedia.org/wiki/Crassulacean_acid_metabolism https://en.wikipedia.org/wiki/Crassulacean_acid_metabolism is a decent introduction to it. Also, most "kid" bedrooms are around 10x10 or so, but some master bedrooms can be rather ... large. I said 3-4 to cover both not being the only one in there and the size of the plants. The tests are done on or projected to full-size mature plants, but if you go to the store and buy them they are rarely full size. They'll range from 6-8" babies to about 1/3-1/2 in size (1-2'). For the "full effect" from the reports they size based on a 4' tall plant.