franco b wrote:My understanding of base burner is that it partially recirculates the flue gas through the burning coals to obtain more complete combustion.
Looking at the back of the stove there is a large flue manifold with dampers installed. Exhaust can, by setting the dampers be directed up the flue or recirculated. That manifold had a flat top to it which was a good spot to set a coffee pot. These stoves were usually top of the line.
They might very well have improved burning since with all the mica windows many had there was probably plenty of air and all that was needed was to get the gas hot enough to burn. It also cut down on excess draft.
wsherrick wrote:A base burner is a stove that is designed specifically for Anthracite Coal. The idea behind the base burner is to extract as much heat out of the fire as possible by directing the exhaust through passages or an extra flue on the simple models before the exhaust is finally allowed to escape up the chimney. These are powerful and efficient heaters and will out perform most any new stove made. Why they are not still made is a mystery to me. It is not advisable to burn wood or Bituminous in a base burner because the stove will extract enough heat out of the smoke that you will have creosote problems with wood and soot buildup problems with Bituminous. Burning Bituminous is where the Double Burner comes in. If I am not mistaken a Double burner has a damper on the back side of it near the bottom of the stove. This is to allow secondary air to be drawn up and heated before it is introduced over the fire. The proper amount of secondary air is critical in burning the hydrocarbons emitted by Bituminous. These hydrocarbons are also where most of the heat value of Bituminous is found. In order for them to burn successfully the temperature must be high enough inside of the firebox to ignite them and they must also have the proper amount of air added at the same time. The Double Burner if set correctly will heat up the secondary air before it is introduced above the fire and thus cause the hydrocarbon gasses to fire off. If you can get this secondary ignition of the gasses you will get a lot more heat per pound of coal burned and you will also eliminate a large portion of black smoke and soot from being produced because of the unburnt gasses cooling below their ignition point.
Bottom line. If you burn Anthracite-get a base burner. If you burn Bituminous-get the Double Burner.
CapeCoaler wrote:The old base burners were never designed to be hooked to 'central heating' as we know it today.
The tops covered warming ovens or stove plates.
A picture of the outlet you are talking about would clarify what it is.
UpStateMike wrote:Hey another Doe-wag-i-ac owner! I also have a d-18 in the garage. I have burned anthracite in mine with no real issues other than it's tricky to shake down (for me anyways as I need the shaker handle for it). In fact that's how I got started on coal.
Make friends with the Amish folks, ask them about their stoves and the brands they prefer and why. If you decide on a coal stove then maybe they will let you get coal when they do and your price will be even cheaper.
Get a few bags of coal for you to try in your stove. I have burned coal and wood back and forth and it's a good way to learn the differences. Wait until you come in to your house that's nice and toasty and all you do is open the ash door to fire up the stove, then come back in a few minutes, pour in some coal, then come back a little later and shake the grates, empty the ash pan, pour in the coal and go enjoy the rest of the day not having to fuss with hauling, splitting and loading wood every couple of hours.
Here's a GREAT website http://www.goodtimestove.com/ that has some videos about the antique stove they restore and if you scroll down there's a baseburner section. Those are some pretty stoves, and why we got away from them to get into ugly metal boxes I don't know.