$0.20 include delivery charge? Propane should be cheaper, b
Propane should be cheaper, and most importantly, more reliable, if you set up fill-on-demand, or something that to refil automatically Of course the price can change, just like natural gas and electricity. CA maybe different, but you could try it.
山上经常断电，热水炉是用电的。准备安装发电机，但不想让它超负荷。所以安装了一个propane water heater， 做备用。 是不是把电热水炉干脆关了，只用propane 热水炉？ 问了propane公司，她支支吾吾，没有给个答案。网上说propane便宜。
现在电每度二十分， propane 三块一加仑。
Propane should be cheaper, and most importantly, more reliable, if you set up fill-on-demand, or something that to refil automatically Of course the price can change, just like natural gas and electricity. CA maybe different, but you could try it.
To get both sources of energy on an even calculation playing field, remember these statements:
91,500 BTUs (or one gallon) of propane = 27 kWh (kilowatt hours) of electricity 1 watt = 3.412141633 BTU/hrhttps://www.santaenergy.com/propane-vs-electricity/
现在电每度二十分， propane 三块一加仑。
Propane: 27 kwh (propane) = $3.00 1 kwh (propane) = $0.11.
Even at historic high at $3.69, per khw of propane is $0.13
https://www.eia.gov/dnav/pet/hist/LeafHandler.ashx?n=PET&s=M_EPLLPA_PRS_NUS_DPG&f=M?
在东北寒冷地区，这种山上的房子人们更倾向就用液化罐，主要怕停电几天，房子水管破裂。
经常停电，发动机用油，也不省心，还不如就用propane. 偶尔停电，有发动机，则没必要装propane.
仅仅是热水炉不是大问题，若是整个取暖系统，你倒是需要好好掂量掂量。
Typical home propane tank holds 300 gallon.