n****i
发帖数: 1772 | 1 从省钱角度来说还是tankless gas heater 和gas furnace比较划算。没办法北美的天
然气就是便宜。 |
t***s
发帖数: 4666 | 2 很多人家里没有管道天然气
【在 n****i 的大作中提到】
: 从省钱角度来说还是tankless gas heater 和gas furnace比较划算。没办法北美的天
: 然气就是便宜。
|
n****i
发帖数: 1772 | 3 安全也是一个吧。天然气还是有起火的危险。
【在 t***s 的大作中提到】
: 很多人家里没有管道天然气
|
f**e
发帖数: 3156 | 4 好像太冷和太热就没用了
：从省钱角度来说还是tankless gas heater 和gas furnace比较划算。没办法北美的天
：然气就是便宜。 |
n****i
发帖数: 1772 | 5 另外一个就是heat pump相当于空调＋暖气。加上tax credit, 实际上安装费用类似，
假设你两个都要换。
新一点的技术是用地热或者水，问题不大。用空气的话可能要hybrid。
的天
【在 f**e 的大作中提到】
: 好像太冷和太热就没用了
:
: ：从省钱角度来说还是tankless gas heater 和gas furnace比较划算。没办法北美的天
: ：然气就是便宜。
|
w*******g
发帖数: 9932 | 6 I have one and its the worst idea in the whole wide world.
It has a huge tank and yet I frequently ran out of hot water. it's so noisy
as if I have a huge window air conditioner. Oh wait, it's essentially the
same
it uses a lot of electricity too. far more than fridge
【在 n****i 的大作中提到】
: 从省钱角度来说还是tankless gas heater 和gas furnace比较划算。没办法北美的天
: 然气就是便宜。
|
s******y
发帖数: 28562 | 7
noisy
我好奇的问一下，你的总电费是升了还是降了？
【在 w*******g 的大作中提到】
: I have one and its the worst idea in the whole wide world.
: It has a huge tank and yet I frequently ran out of hot water. it's so noisy
: as if I have a huge window air conditioner. Oh wait, it's essentially the
: same
: it uses a lot of electricity too. far more than fridge
|
g*q
发帖数: 26623 | 8 热水器用热泵是效率不行，不过不知道可不可以热泵跟电热丝结合，水箱里的水用热泵
加热到低一点的温度比如40度，用水的时候再用电热丝加热一点。
noisy
[发表自未名空间手机版 - m.mitbbs.com]
【在 w*******g 的大作中提到】
: I have one and its the worst idea in the whole wide world.
: It has a huge tank and yet I frequently ran out of hot water. it's so noisy
: as if I have a huge window air conditioner. Oh wait, it's essentially the
: same
: it uses a lot of electricity too. far more than fridge
|
n****i
发帖数: 1772 | 9 具体哪个型号？
noisy
【在 w*******g 的大作中提到】
: I have one and its the worst idea in the whole wide world.
: It has a huge tank and yet I frequently ran out of hot water. it's so noisy
: as if I have a huge window air conditioner. Oh wait, it's essentially the
: same
: it uses a lot of electricity too. far more than fridge
|
j*m
发帖数: 833 | 10 你到底有个什么？tankless water heater or heat pump? tankless water heater压
根没tank，一般都装室外（因为需要排燃烧之后的废气），平时根本不回看到，也不会
在意大小。Heat pump有些设定可以做，比如外界温度到35度以下heat pump效率降低，
不如直接烧气更便宜，况且这个东西也应该装basement, crawl space或者attic里面，
平时也听不到，大点小点也无所谓。
noisy
【在 w*******g 的大作中提到】
: I have one and its the worst idea in the whole wide world.
: It has a huge tank and yet I frequently ran out of hot water. it's so noisy
: as if I have a huge window air conditioner. Oh wait, it's essentially the
: same
: it uses a lot of electricity too. far more than fridge
|
