j***k
发帖数: 2719 | 1 2 things helps:
1. He had steam heat thru radiator, it is passive and there is no blower. It
heats slower and not evenly. ductless split has a turning fan which blows
hot air to all cornors of a room.
2. My friend brings the temperature down to 58F for the main house just to ensure
that the pipes are not frozen and turn on the ductless split only in rooms
he needs them, not the entire 3800 ft house. The heat is probabaly on only
half of the house and of course he turns them off while at work. |
|
m******s
发帖数: 118 | 2 Anyone having experience buying ductless air conditioners in the states?
(those everywhere we see in China)
It seems a good choice for a small house or a couple of rooms. |
|
c******i
发帖数: 60 | 3 老房子没有duct，不想花工夫再重新做duct，网上看到有ductless multi-split
air conditioner，应该是国内比较常用的那种分体式空调，不知道有没有人在
3000sqf的房子里安装这样的系统，比较forced air中央空调有什么优缺点？
谢谢！ |
|
j***k
发帖数: 2719 | 4 one of my co-workers had it done in his house, he told be that his heating
bill in winter has dropped from $1000 a month to about $300 (his place is about 3800 sq ft). He now only turns his old steam heater to 58F, and turn the ductless in the rooms that he needs to 72F. He used to set the whole house to 70F.
He said he's more comfortable now than before.
We live in New York area with long/cold winters. |
|
c******i
发帖数: 60 | 5 Sounds good, does the $300 include both steam heater bill and the head-pump
bill? The installation cost is expensive though.
We live in NY area as well, initially I'm thinking of only the cooling units
without heat pump, now I need to think it again.
Thanks for sharing the information, let me know once you decide which brand
to go.
about 3800 sq ft). He now only turns his old steam heater to 58F, and turn
the ductless in the rooms that he needs to 72F. He used to set the whole
house to 70F. |
|
j***k
发帖数: 2719 | 6 well, though it is called ductless, you still have pipes connecting the
indoor unit to the main unit outside, having too many or too long of pipes
outside makes the house look ugly. Connecting them inside would worsen the
damage.
Having multiple units also helps when it breaks. INstead of taking out all 4
units, I would have only 1 or 2 to fix.
Except for space saving, the cost of having multiple units vs one single
giant unit is actually the same. |
|
g*****b
发帖数: 269 | 7 房子结构装ducted太麻烦。请问版上有什么ductless的选项推荐？谢谢！ |
|
|
h****s
发帖数: 16779 | 9 嗯。 和不装差不多。
[在 ffviii (当当当) 的大作中提到：]
：Ductless顶个球
：【 在 greatbb (haha~~~) 的大作中提到: 】
：........... |
|
d*****t
发帖数: 2761 | 10 有人把furnace的heat pump换成ductless的AC吗？ 感觉要efficient很多啊，特别是家
里人口不多的，根本不用所有房间一起加热/降温。唯一不能理解的就是原来这些
furnace还有管道怎么弄。也不知道要多少银子 |
|
|
d*******5
发帖数: 10 | 12 急需安装一台有制热功能的ductless AC。准备从网上自己买机器，请人装。麻烦大家
推荐安装师傅。NJ东北部。先谢谢了。 |
|
p***a
发帖数: 78 | 13 谢谢解答， 我确实没看到装在距离hood 3尺左右的帖子， 可否发个链接？
另外看到这个老头的报价， 都不想装神三了， 而且以后卖房子估计还是个缺点， 外
墙上打了两个大洞。
有朋友家装的是不需要任何管道的抽油烟机， 请问版主推荐这种吗？
What Are Ductless Range Hoods?
Ductless hoods can be installed almost anywhere. Since they don’t need to
vent to your home’s exterior and are ductless, you are not required to
install them only where there is a duct. These hoods operate by filtering
the air they suck in and then blowing it back out into the room, essentially
using a recirculation process. The filter often conta... 阅读全帖 |
|
l*j
发帖数: 835 | 14 Not sure if following will be helpful
We have initially installed a ducted range hood, and later coop board push
us to install ductless because they think the smell pump out window into the
alley effecting other people. Basically replace the duct with the
following product. The result seems ok. so, I think you can choose
ductless if it makes the install easier.
https://www.amazon.com/Carbon-Filters-Ductless-Range-Hoods/dp/B00E4Q05YM/ref
=pd_sim_265_2?_encoding=UTF8&pd_rd_i=B00E4Q05YM&pd_rd_r... 阅读全帖 |
|
B*******a
发帖数: 801 | 15 发信人: jwalk (jwalk), 信区: Living
标 题: Re: 有人用ductless multi split air conditioner吗？
发信站: BBS 未名空间站 (Mon Apr 25 13:44:56 2011, 美东)
one of my co-workers had it done in his house, he told be that his heating
bill in winter has dropped from $1000 a month to about $300 (his place is
about 3800 sq ft). He now only turns his old steam heater to 58F, and turn
the ductless in the rooms that he needs to 72F. He used to set the whole
house to 70F.
He said he's more comfortable now than before.
We live in Ne... 阅读全帖 |
|
f********7
发帖数: 89 | 16 GE appliance, a Haier company have job openings for HVAC (Heating
ventilation and Air Conditioning department)
Job Position: Senior Product Service Specialist
Two jobs requires immediately filled, one near New York City, one near
Chicago area.
Ideal candidates requires at least 5 year HVAC industry experience, this job
also requires to strong communicate to customer in US as well as our
factory partner in China, and bilingual in English and Mandarin Chinese
desired. Student who just graduate fro... 阅读全帖 |
|
c******n
发帖数: 891 | 17 那叫multi-zone ductless system,，一些小的商用楼用VRF, 也是DX系统。中央空调要
用管道给房间提供冷风，成本高，载荷差异大的话，不好控制，效率低。用FCU的话，
要向房间输送冷水，也不适合普通居民楼。 |
|
f*****t
发帖数: 901 | 18 It could be ridiculously expensive. I am not sure whether it is feasible to
use the ductless type, which only cost 6-10 k |
|
s**********d
发帖数: 36899 | 19 你说split的吧，室内外两个units。
不如一体的方便，特别是如果你租的房。 |
|
m******s
发帖数: 118 | 20 自住房 ($1500sqft)，房子没有管道，做中央空调很贵 (~$8000)，也没必要。
窗式的有点吵，正在看分体的，就是贵了点。
不过只要维护不太麻烦，看起来好像还不错。
// 在北加湾区，夏天有时会热，通常华氏80来度，一般会有一两星期热到近100度。 |
|
g******y
发帖数: 277 | 21 就像国内家里用的那种分体壁挂式的，哪里能搞的到？我在网上找了找 split air
conditioner 和 ductless air conditioner，信息都很少，而且非常贵。
现在用的这个窗机比较吵，而且只能用在一个房间。我们这里东北部，一年大概用
一个月左右，所以不准备换中央空调了。 |
|
p*****2
发帖数: 21240 | 22 比如Ductless heat pump, Geothermal heat pump, Air source heat pump 这些东西都
好用吗？ |
|
j***b
发帖数: 5901 | 23 我认为能省出来。其实我要是盖新房就上ductless mini split的。
duct是很低效的一种方式。用duct的中央空调是美国奢侈生活方式的一个方面。 |
|
j***b
发帖数: 5901 | 24 这个不难解决吧。在墙上打洞，往里灌cellulose。attic上吹cellulose。再装一个ductless的heat pump。 |
|
f****i
发帖数: 20252 | 25 哪有那么容易
得把drywall拆了
ductless的heat pump。 |
|
w********5
发帖数: 104 | 26 谁能推荐个纽约的电工？似乎所有Ductless的空调都是欧美日韩的牌子，没有中国产的
吗？哪里有Haier的卖吗？ |
|
S*******s
发帖数: 10098 | 27 设计原理不如窗机效率高， 要买的话最好买双筒排气的。http://174.129.132.250/home/2008/06/air-condition-1.html
Bottom line: Given these downsides, we suggest you consider a portable unit
only if having a window unit is out of the question and a split ductless
system is not viable because of cost or installation concerns. If you do
decide to buy a portable unit, choose a model that has two hoses and
evaporates the condensed water.
Essential information: See our advice on staying cool this summer without
cranking the A/C, an... 阅读全帖 |
|
z*****a
发帖数: 3809 | 28 I'm looking at mini-split AC systems as well. Here's what I've read
Advantages:
* More efficient (no duct loss)
* More flexible controls (each room can be cooled independently)
* Easier installation and lower installation costs
Disadvantages:
* Higher equipment costs (especially if you have a lot of rooms)
* Doesn't look as nice |
|
j***k
发帖数: 2719 | 29 i am looking to have it done in my house as well. My house is also about
3000 sq ft.
I will be using for both cooling and heating
I just got a quote for all Daikin systems. Including installing the total
price tag is $22K
2 x 25000 BTU (main living room, basement)
1 x 18000 / 12000 BTU (1 to 2) (family room, bedroom 4)
1 x 12000 / 12000 / 12000 (1 to 3) (bedroom 1, 2, 3)
I have not decided yet, still looking for other quotes.
I am only looking into 3 brands though, Daikin (1st choice), Mitsubish... 阅读全帖 |
|
c******i
发帖数: 60 | 30 Thanks for the information.
Which system lasts longer, mini-split or duct central-air? How about the
maintenance costs? Thanks again. |
|
c******i
发帖数: 60 | 31 So you will install 4 compressors to cover the whole house including
basement. Why not choose two (1 to 4) systems instead? Thanks.
or |
|
j***k
发帖数: 2719 | 32 $300 was his combined bill, gas + electric. So was $1000 from last year.
pump
units
brand |
|
c******i
发帖数: 60 | 33 That's sound too good, the electric heating should be more expensive than
oil/gas heating. |
|
|
c******i
发帖数: 60 | 35 I didn't see the unit for kitchen and dining room, any reason for that?
Thanks.
or |
|
j***k
发帖数: 2719 | 36 just a follow-up...
I had the installers from Haier Flushing (Northern Blvd & Main St) installed
3 Daikin ductless splits in my house last week. 1 18K BTU and 2 12K. Only 1
installer came and it took him 2 days to complete the install (including
adding 3 new circuit breakers and pull the new lines from basement). The
installer did a good job and was very professional.
The unit is super quiet and no complains so far... |
|
c*******t
发帖数: 953 | 37
或者厨房remodel的时候必须使用有管道通到外面的抽油烟机。如果你所在地方有这个
code的话完全可以和HOA讨论。HOA是不能要求你违反code的，也就是说HOA必须同意你
打洞的。
我最近研究了一下标准，好像不是你说的这样。标准说：如果使用抽油烟机，要么是直
排，要么是排到室外。没有说一定要使用有管道通到外面的抽油烟机。也没说一定要有
抽油烟机。
看本地code:
Residential Kitchen Range Hoods (SFD & Town homes) Range hoods shall
discharge to the out doors. The duct serving the hood shall have a smooth
interior surface, be air tight, and equipped with a backdraft damper. Ducts
shall be galvanized steel, stainless steel or copper. Listed and labeled
ductless range hoods... 阅读全帖 |
|
U********S
发帖数: 1896 | 38 505。但NJ用code来说服HOA没戏，505.1 exceptions第一条就说了可以用ductless的油
烟机，而且不需要通到外面。 |
|
H****g
发帖数: 2273 | 39 住Condo的悲催阿~求版上各位推荐室内循环的抽油烟机~谢谢啦~
btw, 貌似神器一代有一个ductless kit的，改造成室内循环的，有xdjms用过的吗？
bow |
|
j***k
发帖数: 2719 | 40 just end your pain once for good..
take out the ac, and patch up the wall. then install a ductless minisplit
from either Daikin or Fujitsu. |
|
|
|
L**P
发帖数: 3792 | 43 Are you talking about air recirculating kit ? If so, no. It just filter your
kitchen air and vent it back to your kitchen. |
|
i***e
发帖数: 9429 | 44
contractor
这种机子的设计就是和一个 coil搭配使用的，如一定要接两个 ，相信一些高手也可做
得到。可我认为这是在烧钱， 没有任何意义，效率值反而会低。市场上没见过住家有
装类似1拖2的中央空调系统。你可以用zoning control 去实现 各自房间的温度控制。
或者你大概说得是 dual zone Mini Ductless Split System? 像国内那种。
如果是全心加 建的，风管徘中央的，机子装中央的比较好。
★ 发自iPhone App: ChineseWeb 7.8 |
|
i***e
发帖数: 9429 | 45
contractor
这种机子的设计就是和一个 coil搭配使用的，如一定要接两个 ，相信一些高手也可做
得到。可我认为这是在烧钱， 没有任何意义，效率值反而会低。市场上没见过住家有
装类似1拖2的中央空调系统。你可以用zoning control 去实现 各自房间的温度控制。
或者你大概说得是 dual zone Mini Ductless Split System? 像国内那种。
如果是全心加 建的，风管徘中央的，机子装中央的比较好。
★ 发自iPhone App: ChineseWeb 7.8 |
|
i***e
发帖数: 9429 | 46
这个rebate 往两年很容易拿，估计以前都是请非专业人士核对的，现在越来越难了，
时间也拖得久。这机子就算没rebate, 那儿的安装费也便宜，还是不错的。
假如考虑到Rebate 的因数，你还是需要要有个心理准备，这Rebate 不是给ductless
机子的。你也可以把rebate 表寄去，如拿不到，没任何影响。如拿到了，记得要回来
发包子哦。 |
|
|
|
|
a********a
发帖数: 3082 | 50 又要portable，又要ductless，似乎很难很难 |
|
