Electrical help: 20 amp vs 30 amp

loutent · 2005-01-07T22:16:31+00:00

I had an electrical question a few months ago about this, and gotseveral varied responses - mainly because I did not have enoughinformation I believe. Now I actually have something towork with!I have a brand new Grizzly 1023SL sitting in the basement(almost) ready to plug in. I have a copper,10 gauge (3 wire - ground,neutral, hot) coming from a 30 amp (unused) breaker which used topower a water heater (now gas). Our house has 200 amp service andis less than 20 years old (just for reference).Grizzly recommends 20 amp/220. Do I need to changeout the 30 breaker for a 20? If I leave it as is, will Iharm the magnetic switch or anything else?Thanks for any input.Lou