Is my filter too strong for a betta?

Will one of those big vases with a plant in it do? I also know someone with a large goldfish bowl that is not in use (and hopefully never will be again) and they also have a large (probably 1-2g) fish container and extra gravel, and I'm sure they'd let me borrow it. I could also buy a few live plants to provide oxygen and "eat" some of the ammonia. I could do 50% w/c every day to keep the ammo and nitrite low, but I don't know how I could keep the temp up. And how could I adjust him to the warm aquarium?
 
My Betta has been in a 10g with a AquaClear mini for a year and he is fine. He is 3 years old and I just recently moved him to a bigger tank. 20g Tall.

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