It wont hurt anything to leave it open even with the furniture over it, but if you want, you can take a towel and plug up the airflow from the vent. This will only make the other vents in the house blow a little more air than normal. just take the vent cover and put it back into place over the towel.
See: How Safe are Vent Less Heaters
There should not be a vent penetration that close to a valley.
It has a vent, but it is not for over filling.
You should clean out your dryer vent at least once a year to ensure it is safe and efficient.
As close as possible is best, but there just has to be a vent so that the air that is in the line has somewhere to go so that the liquid isn't trying to compress it. The closer the vent is to the toilet, the better it will flush.
Usually at the top or close to the top. It is linked to the vent (above the vent) where magma erupts.
The optimal temperature for a dryer vent is around 135-150 degrees Fahrenheit to ensure efficient and safe operation.
The recommended clearance for a dryer vent is at least 12 inches from any obstructions to ensure safe and efficient operation.
Yes
I would say ok on the supply but not hte return.
To properly vent a stove in your kitchen for safe and efficient operation, install a range hood that is vented to the outside. Make sure the hood is the correct size for your stove and that the vent is clear of obstructions. Regularly clean and maintain the vent to ensure proper airflow.
Venting a dryer into a garage is not safe due to the risk of carbon monoxide poisoning and potential fire hazards. It is important to properly vent dryers to the outside to ensure safety.