S****n
发帖数: 519 | 1 我家楼上楼下天花板上有三个grill，我们一般换air filter都换这三个。
但是听说阁楼里面的 furnace 也应该有 air filter，但是上去打开看了，
在转的风扇边上没有发现任何air filter啊？是不是有的furnace不用filter？ |
c*h
发帖数: 33018 | |
u****q
发帖数: 24345 | 3 I think you are supposed to change the furnace filter. Grill filters are not
that important, IMO.
Usually furnace filter is close to the blower, either in a slot (for newer
furnaces), or if yours is like my 20-year-old furnace, the filter is right
near the blower wheel. |
S****n
发帖数: 519 | 4 上attic找了半天没有找到furnace里面有air filters。
我们的furnace是horizontally installed in attic，看了看说明书说 some units
may have remote air filters installed in grilles in the ceiling.
不知道如果天花板上的intake (return) air grille里面有filter，furnace的
blower里面还会再装一个吗？
not
【在 u****q 的大作中提到】
: I think you are supposed to change the furnace filter. Grill filters are not
: that important, IMO.
: Usually furnace filter is close to the blower, either in a slot (for newer
: furnaces), or if yours is like my 20-year-old furnace, the filter is right
: near the blower wheel.
|
B******N
发帖数: 445 | 5 My attic one does not have filter too.the return one on the ceiling is the
filterper inspector. One furnace one filter.
【在 S****n 的大作中提到】
: 上attic找了半天没有找到furnace里面有air filters。
: 我们的furnace是horizontally installed in attic，看了看说明书说 some units
: may have remote air filters installed in grilles in the ceiling.
: 不知道如果天花板上的intake (return) air grille里面有filter，furnace的
: blower里面还会再装一个吗？
:
: not
|
u****q
发帖数: 24345 | 6 Interesting. Maybe you can find the make/model and google the user's manual,
just to be sure. |
