4 ms·
>Also, just food for thought: If one unit of gas has one 1kWh energy, a heat pump can make 3-4kWh out of it (You are following right?). The decision is a littl
by dralley 3y ago
>Also, just food for thought: If one unit of gas has one 1kWh energy, a heat pump can make 3-4kWh out of it (You are following right?).
The decision is a little more complicated than that. If your electricity comes from natural gas, then you have to account for inefficiency in production of electricity and losses during transmission.
On the other hand, furnaces are not 100% efficient either, the cheap ones are 80% and the 95% efficient ones are more expensive, which narrows the gap.
Modern heat pumps can easily maintain a high enough COP to match or beat a furnace, and if you live in an area that needs both heat and A/C at different parts of the year, a more efficient unit benefits you year-round as opposed to spending more on a furnace. And if your electricity isn't coming from fossil fuels... then it's a moot point to begin with. You can't run a furnace on wind.