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Sketches, drawings and details

Sketches, drawings and details

(Click to enlarge photo)

I'm afraid there never seems to be enough time to commit everything to paper or CAD (computer-aided design). At least that is my excuse for not having better documentation. I'll give you what I can but they only amount to a bunch of sketches, drawings and some emails I sent to a chap in America who wanted to build a heating-system based on mine. Although you may have to search through them a little bit, most of the crucial information should be there. Good luck to you in your own projects whatever they are.

Early sketch of a burner-head can be seen here early sketch of burner-head. Please note that the 3/4 inch air-hole at the back of the burner was never required, the same goes for the central band around the tube.

A slightly later sketch can be seen here later sketch of burner-head. Please note that the rear band has been replaced by a disc around the fuel-tube. This did give some flexibility whilst I was working-out dimensions but I think the second band is better placed at the back of the burner-tube itself.

The drilling detail for the burner tube can be seen here as a PDF file burner-head drilling detail. Please note that this should be printed on A4 paper and then cut into two sections (the paper wasn't long enough to print it in one piece). When the two sections are taped together it should appear symmetrical and look a bit like a flying gull (that's what I think anyway!) Tape it around the burner tube to be drilled (make sure the welded seam falls between two rows of holes or you might break a twist-drill) and then it's just a matter of marking each hole with a centre-punch, take the paper off and drill the holes. I tried 1/8 inch holes but I do think they are a bit too large so I suggest 7/64, it may not sound like a big difference but ash is less likely to fall through. That said, not much does fall through the holes anyway because the air is travelling through the holes in the opposite direction. For that reason, always have the fan on when cleaning the burner-head.

Here is a simple relay and capacitor timing circuit that can control the auger motor auger motor circuit. I drew this to send to the chap in America and the emails below give a bit more explanation about it.

Emails yet to be added...


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