The Harman Stove are one of the industry leads in the US for biomass pellet stoves, on the other hand they have we not a key player in the biomass pellet boiler market. On the other hand Harman have now developed the PB105 wood pellet boiler. The PB105 shares many of the same features as the award winning Harman pellet stoves. These features include automatic heat control along with automatic ignition, burn pot and also automated pellet pro feeder. Good access to the burn pot is an additional benefit, access to the in built hopper is also convenient, with a hopper storage capacity of 205lbs, which is accompanied with a large ash bin. All these features mean the PB105 will be a more energy variable and reliable wood pellet boiler. The maximum heat out of the boiler is just below 14 million Btu’s. This means the unit can provide warmth for a space of 2,500 sq.ft, plus has a burning plus heat recovery efficiency of 85% which is also very impressive.

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The PB105 uses a 4 inch pipe and also has a three stage warmth exchanger to capture as much warmth as likely. The unit has a viewing window into the burning chamber which is also the access point for the burn pot. The biomass pellet boiler also has an insulated water jacket to reduce heat loss. The units operates on 120v and has a fuse rating of 6A. To meet fire safety regulations the pellet boiler must be clearance around the back of the boiler of 6 inches, by means of 20 inches of clearance on both sides of the PB105, along with 36 inches at the front. There are various supplementary options extras that can be fitted. These include an outside air heat sensor, which can be very useful to investigate the efficiency of residence insulation, in addition to also view the load on the boiler. Boiler pressure gauge as well as pressure relief values should be options to choose. Other options include water heat gauge plus boiler water drain off value. The PB105 is designed well, but time will tell if Harman will dominate the US biomass pellet boiler market the same way they presently dominate pellet stoves.

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From the appearance of pellet fuel, pretty much all types of pellet look the same. Extra than slight changes in colour, owing to the production process the pellets have the same size, shape as well as density. This means pretty much any pellet can be put in a hopper in any pellet stove or pellet boiler, in addition to the pellets will be fed into the burn pot. On the other hand, here is where the similarity ends, as owing to the pellet manufacture process makes unlike wood fuels appear the same, their combustion characteristics are very very different. For example, all pellet stoves and boiler are primarily designed to burn premium pellets, which create an ash content of 0.5%. Though unlike types of wood fuel may produce an ash content from 1% up to around 7%, and increased ash content is not the only difference. Some pellet fuels make ash which melts at lower temperatures, for case grass pellets. Melting ash forms into a material called a clinker. Even wood pellets can actually form clinkers through the intense warmth that a pellet fire can generate. Some pellet stoves as well as boilers cannot deal by way of clinkers.

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