Done all the time but you should be educated to the variations before jumping in to prevent errors that can create operational nightmares. Viessmann has some excellent training right down the road in Rhode Island.
If YOU want change, YOU have to first change.
If you are waiting for the 'other guy' to change first, just remember, you're the 'other guy's' other guy. To continue to expect real change when you keep acting the same way as always, is folly. Won't happen. Real change will only happen when a majority of the people change the way they vote!