The Wood Pellet Boiler Operation
The pellets are supplied to the boiler by a small covered conveyor running from the bottom of the hopper to boiler combustion chamber. Initially the pellets are fired by an automatic igniting component in the combustion chamber, which can be used as required.
As the domestic or central heating calls for more heat, the conveyor speed is increased, the combustion air fan supplying optimum air to match the increase in fuel requirement.
The ash produced falls down into the ash-pan, which depending on the fuel consumption only requires to be emptied two or three times a week.
The ash is good quality potash which can be added to the soil in the garden.
This wood pellet burning boiler is one of the best examples of the use of renewable energy for domestic heating I have examined.
I used to live in Aviemore, a small village high up in the Highlands of Scotland. We had very cold, snowy winters, and I investigated the pros and cons of installing a pellet boiler to my existing system.
I visited the local agent for the pellet boilers and saw one in operation. The agent had installed this boiler in a room he used as his home office. I was very impressed with the quiet operation of the system, only the odd tinkle from the conveyor, taking the pellets from the hopper which he had fitted to an adjacent cupboard.
He invited me to open the furnace door, which revealed a bright blue flame of intense flame.
I moved house shortly after this and my present heating system is from a gas condensing boiler. However if I ever have to change the system boiler I would give the wood pellet burning boiler very careful consideration.