Radius No.21 (‘Shooting Star’ & ‘Radius Ltd’ stamped)

Discussion in 'Radius No:21' started by Pharael, Apr 1, 2026.

  1. Pharael

    Pharael SotM Winner Subscriber

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    An exquisite tin for an exquisite stove.

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    Superb tin graphics by Radius.

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    The windshield was ‘oil quenched ‘ to prevent future corrosion occurring.

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    Tank stampings.

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    The presence of the famous Radius ‘Shooting Star’ usually confirms the stove was manufactured pre-1938.

    However in the case of this No.21, whilst the ‘Shooting Star’ is present there is also a ‘Radius Ltd’ stamped on the bottom of the stove.

    Clearly therefore, this No.21 was manufactured during the transitionary period of Radius moving to become a ‘Ltd’ company. I would therefore date this stove to circa 1938 (Type 6).

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    A stunning flame from this No.21.

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    Pharael.
     
  2. GibsonsRavinePark2

    GibsonsRavinePark2 Canada SotM Winner Subscriber

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    Beautiful stove. Amazing that you found a tin in such good shape too.

    Do you have a seal between the priming cup and the burner, or between the riser and the priming cup?

    I have a similar 21 and am having trouble getting it to seal between the riser and the burner. I can't seem to find any official instructions that mention how to assemble it properly.

    Anders
     
  3. Blackdog

    Blackdog United Kingdom SotM Winner Subscriber

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    Beautiful.
     
  4. Pharael

    Pharael SotM Winner Subscriber

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    @GibsonsRavinePark2 - Thanks very much.

    Sorry to hear about the current issue you are experiencing- hopefully, the following info will be of help to you.

    This is my burner fibre washer set up on my No.21.

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    If you sit the pre-heat cup on the riser, you’ll note it sits fully on the riser and not on the riser’s outer edge.

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    Looking at the underside of the pre-heat cup, the inner section which sits on the riser can be seen.

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    A suitably sized burner washer is fitted into this section which the riser head will seal against.

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    You can see the size difference between the main burner washer and the smaller pre-heat to riser burner washer.

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    The dimensions of the pre-heat to riser burner washer I have used is:

    OD = 17.0mm
    ID = 13.0mm
    Thickness = 1.5mm

    Hope to see a flame shot posting from your No.21 soon!

    Pharael.
     
  5. Pharael

    Pharael SotM Winner Subscriber

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  6. GibsonsRavinePark2

    GibsonsRavinePark2 Canada SotM Winner Subscriber

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    Thanks @Pharael for the detailed answer. I didn't have the right size washer so I trimmed a bit off a bigger one to fit under the cup. Works well now!

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  7. Pharael

    Pharael SotM Winner Subscriber

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    @GibsonsRavinePark2 - you are very welcome.

    Now that is a super-wonderful flame shot!

    Pharael.