any mason's - need some help

Quote:

---

Originally posted by basom
i may be on drugs. but that is no excuse for my horrible spelling.

---

uh, yeah it is....

Quote:

---

Originally posted by train07
Splatster(and elevens).. Rumford was THE MAN in his time, retrofitting countless inefficient squatty fireboxes to his new concept.I've had two Rumfords built in my house...

---

That's interesting. The Rumford design doesn't look like it would push out that much heat, but that's just my opinion. I only say that because of the firebrick interior - circulating air around behind a metal firebox seems (to me) to be more effective. But on the Rumford site it shows the ceramic retrofit they slide in and do the remodel in a day all the way out the top of the roof.

Ever hear how masons would guarantee that they got paid?

They'd lay a piece of glass across the flue halfway up the chimney.
When the check cleared, they'd drop a brick down it.

Quote:

---

Originally posted by splat

Ever hear how masons would guarantee that they got paid?

They'd lay a piece of glass across the flue halfway up the chimney.
When the check cleared, they'd drop a brick down it. [/B]

---

I've been on so many jobsites where the lunch time banter rolled around to that conversation........somebody always knew somebody who put the sheet of glass in the works and then later dropped the brick. I heard it so many times in so many different areas (and states)......but these guys always spoke like, "oh yeah, I know a guy who......". I finally came to the conclusion this is folklore....somebody probably was smart enough to forsee a problem with the payment some where.....but those guys who claim first hand knowledge of so and so kill me.
Splatster, I like your idea, but believe me an authentic Rumford cranks heat into the room.


Good Luck elevens. Hope you save that fireplace.

Quote:

---

Originally posted by splat
Whether it's ledgestone or river rock, you still have make an airspace between the metal firebox and cement blocks if you want a convective fireplace that draws cold air in at the bottom and pushes it out hot above. This is done by making slots in the rocks at the sides or beneath the firebox to draw cold in and circulate around the firebox and go out slots up high where a mantle would be. It's better, I think, to have block to attach the stone veneer to. And the weight involved requires a damn sturdy slab as a foundation. You can do it pioneer style with all rock, but I'd go with square cement blocks for sturdiness and sealing purposes. I once bought an old square firebox and had a welder attach a arched metal front to it for visual appeal and it worked great. There might be a shot of the fireplace in the Battered Beaver in the Summit thread. I rebuilt that fireplace and it came out great.

---

I see now. Have seen designs lately where they use metal samwich construction with a 2-3" gap between the plates with flat bar in the gap forcing the air to go make a back and forth path. Probably to much resistane for natural convection but would put out a lot of heat with a fan.

Yes a full stone fireplace would need a very good foundation but that what free 3/4" rebar is for. Like that idea of the high heat storage just from the mass of the natural stone.