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Installing the Rumford Fireplace Throat and Flue

The mortar is troweled onto the top of the firebox where the pre-cast throat will be installed. This throat prevents the loss of heated room air up the fireplace's flue. The throat will not be visible once the fireplace construction is completed. The cast-iron damper and smoke chamber are then put in place, marking the transition to the fireplace flue.

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Chapters from this episode

Installing the Rumford Fireplace Throat and Flue Now Playing

Installing the Rumford Fireplace Throat and Flue

Securing Load Bearing Columns with Metal Straps to Prevent Wind Lift Now Playing

Securing Load Bearing Columns with Metal Straps to Prevent Wind Lift

Reviewing the Home's Framing Now Playing

Reviewing the Home's Framing

Building a Rumford Fireplace Now Playing

Building a Rumford Fireplace

Clip Transcript For:

Installing the Rumford Fireplace Throat and Flue

computer-generated transcript - may not be 100% accurate

" Now Jim does this refractive. More. -- very quickly."

" Does that different kind of properties than regular mortar it works pretty much like regular mortar that's set up a little more quickly and it's a high temperature -- OK so now we have a small amount of it that needs to be trowel on to. The top. The area where. The actual throat the precast throat will be installed right right. The settings the curved throat we talked about earlier that. That keeps the flow landowner mixes. You -- waste less heated room here to walk through the chimney. And by -- under flow it allows the smoke to stay behind it that we don't fall -- That's one of the two key elements of a count rumford is that and the shallow shallow reflective part. Here it goes with that away. It probably weighs about. 200 -- These guys fall there are struck. Now the the throat itself will not be visible once the rest of the chimney comes together right exactly right the throat is right at the top of the opening."

" And now -- lay block across that will be smooth finish opening no lower than --"

" Will be hidden behind aftershocks as a pretty shape it almost looks like an oriental Pagoda you can always in the fireplace and look at yeah. Is it property used the same refractive mortar even on the side of it once you've gotten away from the firebox itself it's not necessary to back it up. Everywhere that the whining like. Lose in the structure of pizzas. You can put together finish effect worse because it's close to the flu versus. Behind it doesn't mean. All right so the cast iron damper. Goes into place. And then Jim the the that clay piece that you've got over there. Is. 12 components right this is half of -- smoke chamber so got a half goes the other way it -- we put this in here. Than that all. Make the transition from the throat area where the damper is to the flue sides and the flue then begins to go up."

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