Office of Steam Logo_1

Author Topic: Strange metallic smell from boiler  (Read 12872 times)

  • Administrator
  • Engineer
  • *****
  • Posts: 9189
  • Location: Minnesota, USA 🇺🇸
Re: Strange metallic smell from boiler
« Reply #15 on: May 02, 2025, 01:37:52 am »
Haha I had to say it after the very descriptive smell  ;)

On larger vertical boilers with tubes, the boiler is filled all the way to the top to prevent damage and as it’s heated up the water is drained down to operating level, but I’ve never had an issue on small vertical toy/model boilers.

Interesting… so I need to be filling it to like 80% or more? I am doing like 50-60%
You should be good just filling it to operating level. I was just saying on full size you fill it all the way to the top when first lighting the fire to prevent heating the tubes too fast, then drain some out as water is warmed and steam is raised. So I guess if you want to try starting with more water in case something is getting to hot at startup, you can give it a try…
Nick