Can we reduce insurance risk?

I am wondering what actions a committee could take to mitigate risk to make the building ‘less risky’ for the insurer?

For example we have small hot water systems in  the kitchen of each unit which have a limited life.

Could we create a by-law  that enforces the lot owner to carry out regular maintenance
and replacement of their individual hot water heaters and flexi hoses? Can the by-law recoup
all losses from the lot owner if due to lack of maintenance and/or replacement causes
resultant damage? We had one recently that was 20 years old (they have a 7 year warranty) and it was so rusty you could poke your finger through the tank. Naturally it blew!
Just wondering.