@Ian - lol. When I started reading your post, I thought "Oh no! I thought I'd be safe in chaff!" But seriously, thanks. :)
@Rog - The Boiler business has been going well - I get a few orders every day, and it's extremely gratifying to see how far the project has come from the first days on here. I have some other fire-related products in the line, too, but they tend to take longer for testing, changing, and re-testing.