Determining what is in your saddle can be tricky, but itâs important to know what youâre riding on. Wool flocked saddles will often have what is known as rear gussets (the seam along the back of the panel), although some foam saddles can have gussets to allow them to fit a broader backed horse.
Furnaces and boilers represent the two largest categories of heating systems used for houses and for buildings in general. The main difference between these two heating appliances is what they heat: Furnaces heat air that is distributed by a ductwork system. Boilers heat water that is used in different hydronic heating systems. So-called combi-boilers are designed to supply hot water for washing as well as for whole-house heating. Furnaces and boilers usually burn gas, propane or fuel oil. Less frequently, you'll find units that burn wood, pellet fuel or coal.
In British English, a furnace is an industrial furnace used for many things, such as the extraction of metal from ore (smelting) or in oil refineries and other chemical plants, for example as the heat source for fractional distillation columns.n industrial furnace or direct fired heater, is an equipment used to provide heat for a process or can serve as reactor which provides heats of reaction. Furnace designs vary as to its function, heating duty, type of fuel and method of introducing combustion air.