depend on where you are and how much you wnat to spend. 4 years new oil burner should last a long time. the most difficault thing for oil heat is you need to know when it is run out oil, which you can add a wifi level detector. add another system may cost a lot as you have to run or change the pipe. you can think to add a multi zone mini split heap pump system for both air condition and heat if you are not in very cold area. you can also think to add a wall mount condensing heat for second floor only and shut off steam rediator there.
改烧气,no worth
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Thanks cfol2012, I will research the options you suggested. the
-完美擦边球-
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12/11/2018 postreply
12:43:34
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yw.
-cfol2012-
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12/11/2018 postreply
13:12:00
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多谢!我找人看看第三个链接的好不好装
-完美擦边球-
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12/11/2018 postreply
18:09:49
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我认为改不改主要是看谁出燃料费,我们这里烧气费用是烧油的费用的1/2 或1/3
-learner4ever-
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12/11/2018 postreply
15:24:37
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太对了,烧油较贵,房客不乐意分摊费用,烧气要便宜很多,好商量
-完美擦边球-
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12/11/2018 postreply
17:59:25