It could be worse! It takes me about an hour to change the bricks. You need to remove the bricks before removing the baffle plate. Make sure the grate is very clean with no dust before trying to remove/refit the bricks.
The important thing with the baffle plate is to make sure you can move it right forward, which it is sometimes reluctant to do if there is a lot of clinker built up. Some vigorous jiggling about while pulling the front up and forward usually works - make sure it does come as far forward as it will go. If it doesn't move easily, I can poke down the flue with a bit of pipe to break up the clinker, then drop a wet/dry vac hose down to pick up the clinker. I don't burn wood any more so the clinker is usually hard and dry; it was more difficult with wood as well due to the tar. I've attached the notes from my maintenance guide about changing the bricks. You can get a set for £25 off ebay from "stovecareandrepair". They are vermiculite and seem as good as any other vermiculite ones I have come across.
Good luck!
Solid Fuel Stove
No specific regular maintenance as such, but note the following.
Fire bricks. These should be replaced if broken. The rear brick is the most likely to break, but requires the side bricks to be removed to be able to change it. The side fire bricks are not easy! If removing the fire bricks, completely remove the baffle plate and sweep flue pipe. Firstly remove all ash and dust from the fire grate. Now lift the baffle plate slightly and slide forwards. If the baffle plate won’t slide forwards, it might have a load of congealed ash on top. Jiggle it with some force should break up the ash enough to move or remove it. It should now be possible to remove the fire bricks by pulling out from the bottom; a knife of screwdriver under the bottom edge might help to get this started. Baffle plate must be fully forward to release top back corners. The rear fire brick can now be removed. It should now be possible to remove the baffle plate by jiggling it – note the cutouts in the supports on the side which help to remove the plate (note which way round the plate fits!). Although you can replace the fire bricks without removing the baffle plate, it makes sense to clean the flue at this point. Clean all ash
and soot from the grate. Lift and slide baffle plate forwards and replace rear fire brick. If using new side fire bricks, chamfer (use little Surform) the top outer edge and the bottom inner edge to make it easier to rotate the bricks into position. Also chamfer off a mm or two from the inside back corner (about 50x50 triangle) of the side fire brick and a little off the bottom to help to get it up behind the baffle plate. Check also that the rear brick fits back ok, it might need a bit taking off the ends. Make sure baffle plate is as far forward as possible so that back top corner of the side fire bricks can go up alongside it. After replacing side bricks slide baffle plate back into position so it sits on the side supports and also sits on top of the rear fire brick. Fire bricks can be bought or ordered from chandlers but will be cheaper online (although allegedly not as long lasting). Make sure the replacements are for a Stovax Brunel 1A.
Flue. Smoke coming out of the top vent often indicates the flue needs cleaning (although it will smoke a bit when first lighting, especially if it is calm). The flue has a tendency to tar up quite quickly if using wood. To clear flue, remove baffle plate as detailed above. Now use a metal tube or similar (there is one in the ‘shed’ or else use the aerial pole) to scrape down inside the flue. Make sure you go right to the bottom. This is needed to remove tar as the brush is not hard enough. After scraping, use the flue brush to clear any other material. Clean out grate and reassemble the stove
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Glass replacement. Lift off door and lay flat. Slacken four screws holding retaining clips. These tend to be tight to remove, so carefully use mole grips to turn screws which have a cheese head (vertical sides to head). Cord in groove under glass should be ok, but if torn replace with same diameter. Glass should be sitting on cord when clips tightened, not on metal of door. Replace glass, noting it is not square so fit right way round. Size is 223x217mm. Tighten clips using a screwdriver only and not too tight. If you have some high temperature (e.g. “Copperslip”) grease put a bit of that on the threads.