>>3773113The gas absorption heat pump is like the gas fridge in your RV, but in reverse. It's magic - it makes cold from heat by boiling liquid ammonia.
So not only are you using a cheaper source of energy - gas instead of electric - you get the same heat multiplying effect, because it's a friggin heat pump all the same.
And, it doesn't take much power to run the pumps. If you ever have a power outage, your electric heat pump will just stop working and you have no heat, while your gas powered heat pump only needs a small portable generator and you're back in business, and you can even get backup heating by connecting to a propane cylinder.