From DE-PS 312 287 there is known a water-cooled hollow grate with replaceable bars, where the hollow grate bars have recesses at their ends, in which the connecting pieces provided with flow passages as well as the connecting pieces provided with pipe connections are fixed by pressing devices. The connecting pieces generally connect two grate bars such that the entire grate supplier forms a continuous pipe coil so to speak. The flow of coolant may be designed as desired depending on the arrangement of the connecting pieces provided with pipe connections, and each individual grate bar can be replaced after loosening only two connecting pieces. This construction has the disadvantage that the connecting pieces and abutments are in part disposed in direct vicinity of the combustion space and are therefore subject to a constant wear. In addition, the great distance of the grate bars produces a small grate resistance on the downstream side, which has a negative influence on the course of the combustion.
Narrow down your choice of suitable fire grates that fit in with your fire burning habits and the dcor of your room. People who burn fires frequently should get a fireplace grate with thicker bars. Grates with thinner bars can be selected by people who seldom burn fires.Decide on the design of the fireplace grate. Note that fireplace grate bars have ends that curl up. This is to keep firewood in place, so select the curl that will work with the size of logs you will be burning.Pick out your fireplace grate and install it in your fireplace. The grate should be 3 to 5 inches above the floor of the fireplace and roughly centered in the fireplace. Moving the grate farther back in the fireplace may help prevent smoke from entering the room but could result in a fire that burns less efficiently.
Put wood on your fireplace grate and start your fire. As the fire burns, burned pieces of wood and ash will fall through the grate to the fireplace floor. Partially burned wood can be placed back on the grate, but the ash should be cleaned out of the fireplace in between fires.Clean your fireplace grate by using a fireplace brush. The grate can be removed from the fireplace and scrubbed with a detergent if a more thorough cleaning is desired.