15
Tertiary Air Tubes
There are two tertiary air tubes located at the top of the inner firebox to bring air into the fire. One is large and
one is small. Each tube is held in its position by a swing cam catch attached with a single 8mm bolt to the left
hand inner side of the firebox. The cam catch has a locator at its end that locates in a hole at the end of the tube.
When the cam catch locator is positioned in the tube hole the bolt is tightened to hold it in this position thus trapping
the tube. This ensures that the tube will not slide out and it keeps the tube with its tertiary air ports in the correct
position within the stove.
Above the two tubes are 2 sets of baffle boards. The two lower baffles are loose, just resting on the tubes and
touching the rear of the stove. They are not fixed with any fixings. The one upper baffle is held in place by a
bracket at the rear and a bracket at the front top, being trapped between the two brackets.
Baffle Boards
Upper baffle board and location brackets
Tertiary Air Tube and Lower Baffle Removal and Replacement
The sequence for easy removal of the air tubes and lower baffles are thus: -
First remove the front tertiary air tube closest to the door of the fire.
To remove the tube, slacken the 8mm bolt using a 13mm spanner. Once the bolt is slack then the cam catch can
be rotated slightly so that the locator comes away from the tube hole releasing the tube.
There is no need to remove the 8mm bolt completely. It is easier for reassembly to just leave it loose.
8mm bolt holding cam latch
Cam latch
Once this has been carried out then the tube can be slid across so that one end is released from the side
chamber to drop down allowing space to pull it out of the other side of the chamber.
Next slide forward the lower baffles over the rear tube and drop their front edge down and remove them from the
fire. Note their orientation as they are longer along one edge.
Finally remove the rear tube in the same manner as the front tube. Replacement is the reverse procedure.
First fit the Rear Tube, then the lower baffles and then the Front Tube.
