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Exactly. I mean, I don't pretend to wear only boxers at home during winter... but just my jeans and a t-shirt? C'mon. Also, I don't see the need to turn on the

by danwee 4y ago

Exactly. I mean, I don't pretend to wear only boxers at home during winter... but just my jeans and a t-shirt? C'mon. Also, I don't see the need to turn on the heating in the whole house: it's usually turned on only in the living room (where I spent 90% of the time). The bathroom, kitchen, hallways, they all could be as cold as needed, I don't mind. As for the bedroom: as soon as I'm inside bed for at least 10 minutes, I'm already warm no matter if the heating is off.

bluGill 4y ago
If your house is properly insulated the others rooms will be warm just because your living room is. May as well heat them all as the cost difference is minimal and then you can be comfortable that other 10% of the time.
- schiffern 4y ago
  When I first read this something about it stuck in my brain, but I couldn't put my finger on it until just now. >May as well heat them all as the cost difference is minimal If you sit down and reason out the math, you find that this isn't actually true. The total heat loss is proportional to the temperature difference integrated over the total area of the building envelope (weighted by U-value). The integrated heat flux through this surface must equal the heat supplied within the interior, primarily by the heating system. If rooms with exterior walls are colder (when in the equilibrium maintained by the heating system), then by definition you're losing less energy through that surface, so therefore less energy must be added. -- The advice also wildly disagreed with my own experience, which is that shutting off unused rooms (especially rooms that are naturally colder anyway) has resulted in large energy savings. I do make sure to regularly monitor such rooms for any sign of moisture or mold, but blocking off the vent/under-door airflow (and keeping a particularly chilly guest room closet ajar) seems to suffice.
- deleted 4y ago
  [deleted]

by danwee 4y ago

bluGill 4y ago

If your house is properly insulated the others rooms will be warm just because your living room is. May as well heat them all as the cost difference is minimal and then you can be comfortable that other 10% of the time.

schiffern 4y ago
When I first read this something about it stuck in my brain, but I couldn't put my finger on it until just now. >May as well heat them all as the cost difference is minimal If you sit down and reason out the math, you find that this isn't actually true. The total heat loss is proportional to the temperature difference integrated over the total area of the building envelope (weighted by U-value). The integrated heat flux through this surface must equal the heat supplied within the interior, primarily by the heating system. If rooms with exterior walls are colder (when in the equilibrium maintained by the heating system), then by definition you're losing less energy through that surface, so therefore less energy must be added. -- The advice also wildly disagreed with my own experience, which is that shutting off unused rooms (especially rooms that are naturally colder anyway) has resulted in large energy savings. I do make sure to regularly monitor such rooms for any sign of moisture or mold, but blocking off the vent/under-door airflow (and keeping a particularly chilly guest room closet ajar) seems to suffice.
deleted 4y ago
[deleted]