yes to smoke shelf - we are doing a repair right now to add one that was not installed. For a longer shelf life, the smoking time needs to … Its function is to bounce downdrafts back up the chimney.

Factory-built fireplaces do not usually have a smoke shelf or smoke chamber above the damper. In most cases, after a chimney technician parges a smoke chamber it is still not perfectly smooth. A smoke shelf is a design feature, not necessarily needed, but when incorporated into the firebox design, it is certainly a plus. The original idea was that it "bounced" the downdraft back up creating draw. What it does do is to narrow the throat and then to open it back up making a Venturii which is a very established way of increasing flow.

The smoke shelf runs the full length of the throat. __________________. It is, however, a standard part of most masonry fireplaces. Do I need a smoke shelf to use my fireplace and if I do can this shelf be repaired. Your meat will develop a burnt flavor. I am only trying to make you aware of the facts and let you decide for yourselves. Its depth ranges …
Since most of these fireplaces draw quite nicely, the need for a smoke shelf is questionable.

To reduce this, a "smoke shelf" must be designed into all wood burning fireplaces, your flue sizing must be calculated properly, and chimney height must be tall enough to encourage proper draw. Get shopping advice from experts, friends and the community! The smoke shelf in my firplace is rusted out. If you do that earlier, the sauce will burn and brown quickly. I cannot say that you do or do not have to have your smoke chamber parged.

The walls of the smoke chamber may have a minimum required thickness of 51/2 or 6 inches.

02-19-2010, 10:39 PM. Cool outside air travels down the flue, strikes the smoke shelf, mixes with warm air from inside the room or firebox, and returns up the chimney, … There are a few other issues as well.

HO can't light the fireplace without filling the house with smoke. Bogus.

Colbyt.

Outdoors the slightest wind can downdraft your fireplace and force smoke forward of the hearth. View Profile. # 5. Advice is free, Lessons begin at 75 bucks an hour. Smoke Shelf: To prevent downdrafts form the outside form interfering with updrafts carrying smoke and gases, a smoke shelf is provided.

If you want to apply sauce on the meat, do so during the last 20 or 30 minutes of smoking. Rockmonster.

the smoke shelf is an interesting idea. 10-16-2015, 06:22 AM.

Thanks for your time and I look forward to working with you on a yearly basis. So a smoke shelf is not necessary but a narrowing of the throat is Paul Bianco
# 9. A: Richard T. Kreh Sr., an author and masonry consultant in Frederick, Maryland, replies: The smoke shelf serves the same function of helping to create a convection loop inside the flue regardless of whether the chimney and fireplace are inside or outside the house.