If you have any masonry left... The engineering safety industry began with boilers for a reason: YouTube - Water Heater Explosion Mythbusters
http://en.wikipedia.org/wiki/Boiler_explosion So worth getting right not just for the sake of the paperwork.
@moth started
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If you have any masonry left... The engineering safety industry began with boilers for a reason:
YouTube - Water Heater Explosion Mythbusters
http://en.wikipedia.org/wiki/Boiler_explosion
So worth getting right not just for the sake of the paperwork.