c******i
发帖数: 60 | 1 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！ | z*****a
发帖数: 3809 | 2 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
【在 c******i 的大作中提到】
: 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 | 3 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), Mitsubishi, or
Fujitsu | 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.
【在 j***k 的大作中提到】
: 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 | 6 Thanks for the information.
Which system lasts longer, mini-split or duct central-air? How about the
maintenance costs? Thanks again.
【在 z*****a 的大作中提到】
: 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
| c******i
发帖数: 60 | 7 So you will install 4 compressors to cover the whole house including
basement. Why not choose two (1 to 4) systems instead? Thanks.
or
【在 j***k 的大作中提到】
: 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), Mitsubishi, or
| j***k
发帖数: 2719 | 8 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.
【在 c******i 的大作中提到】
: 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 | 9 $300 was his combined bill, gas + electric. So was $1000 from last year.
pump
units
brand
【在 c******i 的大作中提到】
: 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.
| c******i
发帖数: 60 | 10 That's sound too good, the electric heating should be more expensive than
oil/gas heating.
【在 j***k 的大作中提到】
: $300 was his combined bill, gas + electric. So was $1000 from last year.
:
: pump
: units
: brand
| j***k
发帖数: 2719 | 11 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. | c******i
发帖数: 60 | 12 This explains, I also find some similar information from
a contractor's website:
http://www.anrtechnical.com/ourslimistory.html
It
ensure
rooms
【在 j***k 的大作中提到】
: 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.
| c******i
发帖数: 60 | 13 I didn't see the unit for kitchen and dining room, any reason for that?
Thanks.
or
【在 j***k 的大作中提到】
: 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), Mitsubishi, or
|
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