tarms 504

I used to import and sell this boiler.
You can burn hard coal in it, but you have to learn the technique. The best way is using the optional "coal baffle" which does two things - well, actually three...

1. Makes the firebox smaller
2. Put in uprights at the rear so you can pile the coal and not block the output.
3. Puts a baffle in the ash area to direct more air up through the coal bed.

It can be done without the coal baffle, but it may be harder to get the hang of it. It would be great if another 504 owner here would give you some hints (crossing our fingers)....

This PDF gives some idea of how the coal baffle installs:
http://www.woodboilers.com/uploads/public/Coal Baffle Instructions.pdf

Sure, I see no problem with that. The shaker grates in the boiler are really for coal. The similar older model (wood only) MB-55 came with flat wood grates.

So that sounds fine.

William Putnam said:

Thank you webbie your information has been very helpfull if this gose threw twice opps I don't know what happen to the first one it just dissapeared

Click to expand...

Also, one other thing to be sure of. As in all solid fuel fired equipment,good accurate air control is essential. Be sure to check all door gaskets for leakage. coal is very touchy about air control. You could easily get a runaway boiler if you cant control the air nearly 100 percent. I check my door gaskets with a lighter. While the fire is burning I run the lighter flame all around the door gasket to see if the flame gets sucked in, if it does, adjust your door catch or replace the gasket.