| 談天說地主旨 ﹝請按主旨作出回應﹞ | 寄件者 | 傳送日期
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| [#1] 變頻冷暖分體機開暖氣 開暖氣其實嘥唔嘥電呢? 如外面28度你set23度， 同外面15度你set23度，邊個耗電呢? Thanks 最後修改時間: 2019-12-05 01:32:29 |
Joeyd 正式會員138.xxx.xxx.95 |
2019-12-05 01:31 | |
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| [#2] 變頻冷暖分體機開暖氣 慳電(錢)過 用 發熱線.. ; 28 ＞ 23 差 5度 15 ＞ 23 差 8度 差8度耗電d 最後修改時間: 2019-12-05 06:35:28 |
cornercube 正式會員 119.xxx.xxx.71 |
2019-12-05 06:30 |
| [#3] 變頻冷暖分體機開暖氣 This is only temp difference, not energy saving at all. Energy is in terms of input kW times hour, viz kWh.(1 unit is about $1.2) But don't mix up with cooling/warming kW.(1 hp is about 2.6 kW heat output, but 600W power input) 如外面28度你set23度，This is cooling mode. 同外面15度你set23度 This is warming mode. For reversed cycle, warming is a bit energy saving than cooling mode.(see the spec of the A/C) Of course, double the saving than ordinary heater. No point of hesitation, just switch on the warming mode. This is what the this mode is intended for.(used 1-2 months out of the year) |
alexanderkoo 正式會員 42.xxx.xxx.171 |
2019-12-05 07:30 |
| [#4] 變頻冷暖分體機開暖氣 Just for illustration. http://www.panasonic.hk/chinese/products/living/ventilation-air-conditioning/split-air-conditioner/cs-e9vka.aspx 1 匹 (冷暖系列 - 附無線遙控器) 製冷效能: 8,530 Btu/h 製暖效能: 11,600 Btu/h The difference is quite substantial. 最後修改時間: 2019-12-05 08:13:26 |
alexanderkoo 正式會員 112.xxx.xxx.147 |
2019-12-05 08:12 |
| [#5] 變頻冷暖分體機開暖氣 https://www.ugrad.math.ubc.ca/coursedoc/math100/notes/diffeqs/cool.html 這只是開始 答案不是那麼簡單 Heat loss/gain 不是線性 即要升一度（或降一度）丶如需一萬BTU, 升兩度不是一萬x2， 而是多過兩倍 最後修改時間: 2019-12-05 14:45:26 |
Phil.ng 會員 45.xxx.xxx.140 |
2019-12-05 14:31 |
| [#6] 變頻冷暖分體機開暖氣 1蚊(冷暖氣機) vs 3蚊(發熱線) https://tinyurl.com/rdgn5gz An air conditioning system is able to produce 3 kilowatts of heat for each and every kilowatt of electricity... ...compare the 1 kilowatt that central heating can produce for the same amount of energy... |
cornercube 正式會員 119.xxx.xxx.71 |
2019-12-05 14:47 |
| [#7] 變頻冷暖分體機開暖氣 ＃2、不一定丶同電量丶暖氣BTU 多好多丶留意＃4 |
phil.ng 會員 223.xxx.xxx.7 |
2019-12-05 14:47 |
| [#8] 變頻冷暖分體機開暖氣 #6 x 2丶倍數會因應室外溫度而變 https://www.google.com.hk/search?q=heat+pump+efficiency+vs+electric+baseboard&ie=UTF-8&oe=UTF-8&hl=en-hk&client=safari 但 30F 以下 heat pump （即冷暖空調）就開始”冇力“ |
phil.ng 會員 223.xxx.xxx.7 |
2019-12-05 14:58 |
| [#9] 變頻冷暖分體機開暖氣 因為室外機個coil相對室內果個大，再加埋個泵本身都會有些少熱產生，所以製熱個效率係比製冷高 |
敗家仔 正式會員 221.xxx.xxx.179 |
2019-12-05 15:10 |
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