z****n
发帖数: 1514 | 1 Single family house, 室外温度35F左右，室内65－70F。 用电的heat pump维持温度
供应的
暖气只有87－89度。正常吗？是不是太低了？ |
t***s
发帖数: 4666 | 2 normal bah. the efficiency of heat pump drops when outside temp below 40f.
87-89F is plenty warm already.
【在 z****n 的大作中提到】
: Single family house, 室外温度35F左右，室内65－70F。 用电的heat pump维持温度
: 供应的
: 暖气只有87－89度。正常吗？是不是太低了？
|
f****i
发帖数: 20252 | 3 insulation怎么样？
【在 z****n 的大作中提到】
: Single family house, 室外温度35F左右，室内65－70F。 用电的heat pump维持温度
: 供应的
: 暖气只有87－89度。正常吗？是不是太低了？
|
z****n
发帖数: 1514 | 4 我问的不是insulation的问题，是heat pump只generate 不到90度的热空气正常吗？
【在 f****i 的大作中提到】
: insulation怎么样？
|
t***s
发帖数: 4666 | 5 do you have a heat strip as the second stage?
【在 z****n 的大作中提到】
: 我问的不是insulation的问题，是heat pump只generate 不到90度的热空气正常吗？
|
z****n
发帖数: 1514 | 6 yes, but I have. my question is about the air temperature of the first
stage, is 85-88 normal?. The second stage with heat strip could reach 110-
120.
【在 t***s 的大作中提到】
: do you have a heat strip as the second stage?
|
t***s
发帖数: 4666 | 7 i think it's normal
【在 z****n 的大作中提到】
: yes, but I have. my question is about the air temperature of the first
: stage, is 85-88 normal?. The second stage with heat strip could reach 110-
: 120.
|
z****n
发帖数: 1514 | 8 也就是说heat pump的first stage只能把60多度的室内温度加热到80多度？only about
20－
25度？
【在 t***s 的大作中提到】
: i think it's normal
|
t***s
发帖数: 4666 | 9 it depends on the outside temp too.
about
【在 z****n 的大作中提到】
: 也就是说heat pump的first stage只能把60多度的室内温度加热到80多度？only about
: 20－
: 25度？
|
c*****t
发帖数: 562 | 10 It's really normal, when outside is 35F, the air is barely luck warm at the
best. In my house, the system automatically switch to furnace when the
temperature outside drops under a certain level. |
a****l
发帖数: 8211 | 11 Please understand conventional heat-pump becomes less and less efficient as
outside temperature goes down (when in heating mode), unless you use things
like geothermal heatpump.
Basically, "it generates least amount of heat when you need heat most".
【在 z****n 的大作中提到】
: Single family house, 室外温度35F左右，室内65－70F。 用电的heat pump维持温度
: 供应的
: 暖气只有87－89度。正常吗？是不是太低了？
|
C*******d
发帖数: 15836 | 12 NO!
Heat pump will heat the air inside your house. Because your house's air is
about 65 degrees, when it passes through the heat pump's heat exchanging
element inside your house, its temperature raises about 20 degrees. If your
current house air temperature is 40 degrees, I am sure it won't reach 85
degrees at all after it passes through the element. Exactly how hot your
house can be depends on many factors like outside temperature, house size/
insulation etc. If you don't mind wasting money, yo
【在 z****n 的大作中提到】
: 也就是说heat pump的first stage只能把60多度的室内温度加热到80多度？only about
: 20－
: 25度？
|
C*******d
发帖数: 15836 | 13 NO!
Heat pump will heat the air inside your house. Because your house's air is
about 65 degrees, when it passes through the heat pump's heat exchanging
element inside your house, its temperature raises about 20 degrees. If your
current house air temperature is 40 degrees, I am sure it won't reach 85
degrees at all after it passes through the element. Exactly how hot your
house can be depends on many factors like outside temperature, house size/
insulation etc. If you don't mind wasting money, yo
【在 z****n 的大作中提到】
: 也就是说heat pump的first stage只能把60多度的室内温度加热到80多度？only about
: 20－
: 25度？
|
z****n
发帖数: 1514 | 14 Yes, my heating system automatically switch to furnace when the temperature
outside drops under 30F. But now the outside Temp is 35F, my house temp is
68, the heat pump can only generate 87-88F air, is this normal?
the
【在 c*****t 的大作中提到】
: It's really normal, when outside is 35F, the air is barely luck warm at the
: best. In my house, the system automatically switch to furnace when the
: temperature outside drops under a certain level.
|
