I would say that the gas is the best option. It dries much quicker then electric, therefore making it more efficient and greener if you will, of course nothings more greener then line drying, something i need to do more of myself, but all the construction that took place this year, was too nasty to try to hang outside. Both electric and gas are things that take from the environment, so i would say gas is better cause its quicker.
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