"Tim Downie" wrote in message
...

This one wants to see bodies first before the are outlawed. There is no
need for unvented cylinders when vented heat banks are around. Zero risk
is what you aim for.

Zero risk is a goal of fools.

Only a complete fool would write that.

From the moment of conception until the day you die your life is filled
with risk. Sensible risk reduction is what you aim for.

Yes, zero if it is obtainable.

A car has far more killing potential but it requires no mandatory testing
until it is at least 3 years old.

Which is totally irrelevant to domestic DHW production and storage.

Boy, you are confused.