{"id":8882,"date":"2026-09-11T15:47:07","date_gmt":"2026-09-11T15:47:07","guid":{"rendered":"https:\/\/jxlampshade.com\/?p=8882"},"modified":"2026-09-13T14:10:17","modified_gmt":"2026-09-13T14:10:17","slug":"vetro-per-lampada-ad-olio","status":"publish","type":"post","link":"https:\/\/jxlampshade.com\/it\/chimney-for-oil-lamp\/","title":{"rendered":"Cilindro di vetro per lampada a olio: Come misurare, abbinare e ordinare il vetro giusto"},"content":{"rendered":"\t\t
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Oil lamp glass measurement guide<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Chimney for Oil Lamp: How to Measure, Match and Order the Right Glass<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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When you need a chimney for an oil lamp, the visible glass shape is only half of the specification. The lower seat has to match the burner gallery, the height has to suit the lamp geometry, and the glass has to be appropriate for the intended heat and fuel setup. A product photo can suggest a match, but it cannot replace the base diameter, opening, profile and retaining details.<\/p>\n

The safest buying sequence is to identify the burner, measure the seating interface, record the complete glass profile, and then compare a standard replacement with a custom review. This guide is written for lighting brands, distributors, restoration buyers and anyone who needs a replacement glass chimney without guessing from a catalog image.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tSend Your Chimney Measurements for Review<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Buyer reference<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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What an oil lamp chimney does<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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An oil lamp chimney is the glass tube or shaped glass cover that sits around the burner. It has two practical jobs: it must stay securely seated, and it must support the airflow pattern intended by the burner. The glass also changes how the flame is viewed and how the surrounding shade or globe relates to the light source.<\/p>\n

That definition matters because sellers use several nearby words. A chimney is not automatically the same as a decorative lamp shade, a hurricane glass, a lantern globe or a glass sleeve made for an electric fixture. Some lamps use a simple straight tube. Others use a bulged, flared or ornamental profile that has a specific gallery and holder relationship.<\/p>\n

The first question is therefore not, "Which chimney looks similar?" It is, "Where does this glass sit, how is it retained, and which burner was it designed to serve?" The burner maker or lamp model, the lower outside diameter, the gallery opening and the seated height give a supplier a useful starting point.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Buyer reference<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Measurements that control fit<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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The base or fitter is usually the first measurement to confirm. Paxton Hardware's lamp chimney guide also places attention on the lower diameter and the point where the glass enters the burner gallery. Antique Lamp Supply likewise treats the base diameter as a key selection field. Measure the part that actually locates in the gallery, not a decorative shoulder above it.<\/p>\n

Use a measurement sheet like this before requesting a quote:<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n
Field<\/th>\nWhere to measure<\/th>\nWhy the supplier needs it<\/th>\nHow to record it<\/th>\n<\/tr>\n<\/thead>\n
Lower outside diameter<\/td>\nThe glass section that sits in the gallery or holder<\/td>\nDetermines whether the chimney enters and seats correctly<\/td>\nUse a caliper when possible; record the actual reading<\/td>\n<\/tr>\n
Gallery inside opening<\/td>\nThe burner opening receiving the glass<\/td>\nConfirms the available clearance and retaining method<\/td>\nMeasure the burner, not only the broken glass<\/td>\n<\/tr>\n
Overall seated height<\/td>\nFrom the base seat to the top edge while installed<\/td>\nAffects clearance, visual proportion and burner relationship<\/td>\nRecord the seated dimension and the free glass height<\/td>\n<\/tr>\n
Maximum outside diameter<\/td>\nThe widest point of the chimney profile<\/td>\nPrevents contact with a shade, frame or cage<\/td>\nMeasure across the widest section<\/td>\n<\/tr>\n
Throat or shoulder<\/td>\nThe narrow transition above the base<\/td>\nHelps match a shaped gallery and the intended airflow path<\/td>\nAdd a side profile photo with a ruler<\/td>\n<\/tr>\n
Top opening or lip<\/td>\nThe inside and outside diameter at the top<\/td>\nHelps match a cap, shade, vent or ornamental finish<\/td>\nRecord both diameters if the lip is formed<\/td>\n<\/tr>\n
Retention method<\/td>\nTines, spring clips, gallery rim, carrier or loose seat<\/td>\nA correct diameter can still be unstable if the holder differs<\/td>\nPhotograph the burner with the glass removed<\/td>\n<\/tr>\n
Burner identity<\/td>\nMaker, model, font style or complete lamp photo<\/td>\nPrevents a similar looking part from being fitted to the wrong burner<\/td>\nInclude a clear front and side view<\/td>\n<\/tr>\n<\/tbody><\/table><\/div>\n

Do not round a measurement because a catalog lists a convenient size. A one millimeter difference may be acceptable in one holder and unusable in another. The supplier should confirm the tolerance and the measurement reference before a production order is released.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Buyer reference<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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How to measure without guessing<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Follow this sequence for an existing lamp or a replacement sample:<\/p>\n

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  1. Let the lamp cool completely and remove fuel or loose parts according to the lamp maker's instructions. Work on a stable surface with the glass supported.<\/li>\n
  2. Photograph the complete lamp before removing the chimney. Include the burner, gallery, shade or cage, and the way the glass is retained.<\/li>\n
  3. Measure the lower outside diameter at the actual seating point. If the glass is broken, measure the burner gallery and any surviving base section rather than estimating from the largest fragment.<\/li>\n
  4. Measure the gallery inside opening, seat depth and any tines or clips. Record whether the chimney drops into a rim, passes between tines or is held by a separate carrier.<\/li>\n
  5. Measure the overall height, maximum diameter, throat, shoulder and top opening. Place a steel rule beside the glass for a profile photograph.<\/li>\n
  6. Check the glass for a circular base, oval distortion, chips, cracks, stress marks or a repaired edge. A damaged old part can be useful as a visual reference, but it is not automatically a safe pattern for use.<\/li>\n
  7. Send the measurements as a small table, not only as a group of photos. A supplier can then compare the photo, the numbers and the proposed sample.<\/li>\n<\/ol>\n

    For a cylindrical base, measure in at least two directions. If the readings differ, note the difference instead of averaging it away. The difference may show ovality in the old glass or wear in the metal gallery. A supplier can decide whether the new part should follow the nominal burner opening or the existing glass.<\/p>\n

    The existing JX oil lamp safety guide<\/a> gives a useful first-party reference for recording the base, height, profile and burner information before a replacement is reviewed. It is a complement to this article, not a substitute for the burner maker's instructions.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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    Buyer reference<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    Common chimney profiles and glass options<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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    The profile affects both the appearance and the way the chimney relates to the burner, shade and surrounding frame. A supplier needs the profile drawing or a side photograph because names such as "hurricane" or "antique" are not precise dimensions.<\/p>\n

    \n\n\n\n\n\n\n\n\n
    Profile or finish<\/th>\nWhat it can help describe<\/th>\nDetails to confirm before ordering<\/th>\n<\/tr>\n<\/thead>\n
    Straight tube<\/td>\nA simple cylindrical chimney with a consistent body diameter<\/td>\nLower diameter, wall section, height, top edge and holder clearance<\/td>\n<\/tr>\n
    Bulged or round belly<\/td>\nA wider middle section used on some decorative or vintage lamp forms<\/td>\nMaximum diameter, shoulder transition, seated height and shade clearance<\/td>\n<\/tr>\n
    Flared or trumpet top<\/td>\nA chimney with a wider upper mouth or lip<\/td>\nTop diameter, flare angle, throat, height and any top-mounted shade<\/td>\n<\/tr>\n
    Beaded or ornamental edge<\/td>\nA formed rim or decorative detail<\/td>\nBead location, rim diameter, cleaning access and packing protection<\/td>\n<\/tr>\n
    Clear glass<\/td>\nDirect flame visibility and a visible internal profile<\/td>\nSurface quality, edge finish, wall section and heat-use confirmation<\/td>\n<\/tr>\n
    Frosted or diffused glass<\/td>\nA softer visual effect around the light source<\/td>\nFrost location, opacity target, cleaning method and light-source compatibility<\/td>\n<\/tr>\n<\/tbody><\/table><\/div>\n

    Material should be written in the quote. Borosilicate and soda lime are different glass families, and the correct selection depends on the burner, temperature cycle, forming route and required appearance. A supplier should confirm the proposed material and use boundary rather than assuming that a familiar name guarantees performance.<\/p>\n

    For a flame-lit lamp, ordinary decorative glass is not a safe automatic substitute. The glass shape, wall section, edge condition and burner relationship all need review. For an electric decorative fixture that only resembles an oil lamp, the thermal requirements may be different, but the supplier still needs to know that the chimney is not being exposed to a live flame.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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    Buyer reference<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    How height and throat affect draft and clearance<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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    A common buying mistake is to select a chimney by base diameter alone. The base controls the first fit question, but the seated height and the upper profile determine how the glass sits around the flame and whether it touches a shade, cage or cap.<\/p>\n

    Do not apply one universal height to every oil lamp. The correct height depends on the burner, wick, gallery, intended flame position, surrounding shade and the manufacturer's guidance. The PAA questions returned for this topic show that buyers often ask about the recommended height. That question deserves a measurement based answer: compare the original seated height, burner model and available clearance, then have the supplier confirm the replacement.<\/p>\n

    The throat is the narrow region between the lower seat and the wider body or upper opening. If it is too narrow, it may interfere with the burner or change the available airflow. If it is too wide, the chimney may look wrong, contact a frame or sit outside the retaining points. Record the throat diameter and its distance from the base when the profile is not straight.<\/p>\n

    Use a side clearance check before approving a sample:<\/p>\n