Funny forwards are a method of passing on emails to someone who did not receive the original email. This may be a work colleague or friend that does not have contact with the original sender. The following was forwarded to me earlier today:

The fireplace is feature within a building that is intended to contain fire for heating and occasionally for cooking. They can house electric fires, fuel fires or some other source of heating. The fire itself is usually contained within a firebox or a small pit, and a chimney or similar system is used to allow the exhaust to escape. Historically fireplaces are a central feature within the house, although this is now less common.

The actual fires themselves may be powered in a variety of ways. Wood is the most ancient of fuels and was probably the first to be used as a source of heat. Peat was often used in place of wood because it lasted longer and could burn more efficiently. Coal fires became more popular around the time of the industrial revolution. The electric fire followed the development of the electric current and became very popular in the’30s. In more recent years, bio-fuels and propane have become more widely used.

Old fireplaces are sometimes kept as design features. They may not necessarily have the heating system they were built with. They may have been replaced with a modern system. An electric heater is sometimes installed to provide heat without the fire. Most are just left empty and are used simply for decoration.

A fireplace could have one or more of these component parts: a hearth, a fireplace mantel, a foundation, a cap, a chimney crane, a firebox, a smoke chamber, a lintel, an ash-dump door, a lintel bar, a grate, a cleanout door, a chimney breast, a throat, over-mantel, a damper, a flue, a spark arrestor, a chimney chase, a crown, or a shroud.

There are several types of fireplace. Masonry fireplaces are constructed from brick or stone. Some are made from reinforced concrete, but these are fundamentally flawed as the concrete and metal expand at different rates. This means that many old fireplaces have vertical cracks leading up the chimney.

Manufactured fireplaces use a prefabricated design and so are popular with new builds. These usually consist of a metal firebox linked to a metal pipe that acts as a chimney to vent exhaust. Because of its metal structure it is prone to sparking, so spark arresters are usually included. Wood, natural gas and propane are appropriate fuel sources for this kind of fire system.

Duct Free fireplaces are fueled by gel, LP/bottled gas or natural gas. They are quite easy to install and do not use the same BTUs as other fireplaces. Many states and countries have special regulations regarding these fireplaces. Some of the fireplaces can burn to almost one hundred percent efficiency. However, they have been known to release a large amount of moisture into the surrounding air.

A bio-ethanol fireplace is also known as a flue-less fire, in that it does not require any kind of ventilation or chimney. This means that they are 100% efficient because all of the heat generated goes into the room. They are normally powered by bio-fuels that are produced from the starches or sugars from various crops. There is no soot produced by these fires, only water and carbon dioxide.

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