The Definitive Guide for Truma hot water systems

It is best to burn wood quick to get the most heat from it. A slow, smoky fire can lose as much as a third of the heat energy in the fuel. For effective combustion, the fire needs to get enough oxygen. A tall smoke stack, a mechanical draft fan, or both are typically utilized to make sure that the draft (flow of air into the firebox) is adequate.

If air is forced into the combustion chamber too quickly, it tends to "blow out" the fire. The result is similar as too little air. Forcing excessive air into the combustion chamber can also lead to puffing. Puffing is in fact a series of surges that result from the violent blending of air and wood gases.

The intense heat from the coals can repel big volumes of combustible gases that occasionally spark as oxygen becomes readily available. These explosions rarely cause any damage to the system however the resulting backfire can trigger burns and flying ashes. Many compounds are formed during the combustion of wood. More than 160 various ones have been recognized in the smoke alone.

Although these substances will burn at relatively low temperature levels, the majority of the staying compounds released, such as smoke and tar, will not burn totally up until the temperature level reaches more than 1,000 F. Hence, This Is Noteworthy is required for complete combustion. In a lot of well-designed hot-water systems the firebox is surrounded by water.

The water keeps the firebox walls reasonably cool, which leads to excellent heat transfer however does not promote good combustion. For the most part it is needed to insulate the walls and floor of the firebox with firebrick. The firebrick slows the motion of heat far from the fire and therefore increases combustion effectiveness.

Although the red brick is not rather as reliable, it costs about one-fifth as much as white firebrick. Figure 1 shows a cross-sectional view of a normal hot-water heating unit. It is really essential that a water-jacketed combustion chamber be developed big enough. It should be sized not just to accept a charge of fuel but likewise to allow room for the expanding combustion gases to be entirely burned prior to they lose excessive heat and pass into the firetubes.