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theyre best if you dont use hot water much. a big family, doing laundry, dishes, several showers a day, and itll run up the bill alot faster. if you live alone, or just a couple, and only 1-2 showers, dishes, some laundry, then itll save you money since the heat is basically on-demand. all the while youre at work, the gas/electricity isnt being used. a regular tank heater will be better for alot of use.
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yes, my hog is bigger then yours
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