Member postings for Kevin M

Thanks guys, very helpful answers! That's what I wanted to know.

Have a great day!

Thanks all for your answers. I appreciate every one of your answers.

I got a lot of mixed answers about mostly general usage of gas. I think I wasn't clear enough, so I will clarify some stuff. Sorry about that!

I want to use a propane/butane powered portable gas stove

(such as this: https://www.ebay.com/itm/3500W-Portable-Gas-Stove-Butane-Propane-Burner-Fit-Outdoor-Camping-Hiking-Picnic/322769488346?epid=8011435743&hash=item4b268f89da:g:syAAAOSwqF9ZxIBX).

I would put it under the firebox to get some steam in the boiler for a steam test. ( I don't want to run it on the track on gas!). I don't own a house and garden and a coal fire is stricly forbidden on our balcony, so instead of driving to my local club track everytime I could maintain and test the loco on my balcony using a gas fire.

Now, my initial question was if this is a safe methode for a boiler that was made for coal firing. I was not asking about the general saftey of gas. I'm not familar with the temperatures of a propane/butane fire or hard coal and melting temperature of steel so my second question was if the propane/butane fire gets hotter than a hard coal fire? I really don't want to melt my firebox!

Thanks all.

Thank you, but I was asking if its safe for the boiler and firebox.

Hello,

that may be a stupid question, but is it safe to run a coal fired steel boiler on gas using a portable gas stove under the firebox? I was under the impression that gas gets hotter than hard coal, because it has a blue flame but that is not the case, is it?

Thank you!

Hello dear model engineer friends,

I recently bought an live steam engine and I'm a total beginner, so its would be very kind of you if you can help me on that one:

I want to replace some worn screws, but I really have a problem measuring them.

If I measure the outher diameter of the screw thread and compare it with BA (which I guess is the screws thread) it does fit into the BA11 category, however when I look at pictures on ebay of BA12 screws which is a number smaller, the threads are much bigger. So there is something I do wrong. I attached a picture of the screw.

I appreciate your help very much.

It shows 1.57 mm on the display, or 0.062 inches.