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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
These two books are the perfect starting place to help you get to grips with one of the most vitally important aspects of our society - our homes and living environment.

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    • CommentAuthorShevek
    • CommentTimeJul 22nd 2014 edited
     
    We managed to obtain an oven on Freecycle as attached image.

    Problem is it's very hot on the outside, as in too hot to touch for any length of time, including the knobs. So clearly not very efficient and potentially dangerous.

    Question is, what is likely to be causing this? Bad design or something broken?
    • CommentAuthorsnyggapa
    • CommentTimeJul 22nd 2014
     
    Bad design I would guess, although hot knobs would surprise me.


    Maybe best to find a 'that oven' forum and ask if it's normal.

    We have a 'rangemaster' where the doors and glass get stupidly hot.
  1.  
    We had an oven that got hot on the outside - due to mice destroying the insulation between the oven and the outer shell, once the insulation was replaced the situation improved
    • CommentAuthortony
    • CommentTimeJul 23rd 2014
     
    Oven door seal?
  2.  
    Or damaged hinges so door doesn't fully close? Have seen that where heavy weight put on door
    • CommentAuthorTriassic
    • CommentTimeJul 23rd 2014 edited
     
    I'd suggest you search for the make and model of the cooker, looking for help type forums.

    I had an American side by side fridge freezer and was that close to melting it down for scrap. The manufacturers were no help, all they wanted was to send out a technician (£100) plus parts. A forum search found a guy who helped identify the defective part and repaired it for £40.
    • CommentAuthorsnyggapa
    • CommentTimeJul 23rd 2014
     
    if the knobs are hot, is the heat leaking from the door and rising? if so it sounds like you have a hinge or door seal problem which could just be a matter of adjustment.
  3.  
    Seems to me that all ovens release stupid amounts of heat. We never use ours except in the heating season for this reason. Most seem to keep the external surface cool enough to touch not through insulation but by blowing air around. The room still gets very hot. Hob cooking must be so much more energy efficient. Grilling quickly seems a better option too
  4.  
    We have an Electrolux cooker similar to the one above, but with a halogen hob. The outside gets very hot, including the knobs.

    One thing I've noticed is that the fan which circulates air between the outside of the oven & the underside of the hob comes on at strange times. When the oven is running & up to temperature there is an imperceptible air flow from the slots above the oven door (& presumably between the panes of glass in the over door). A few minutes after the oven has been switched off the fan suddenly turns on for 3-4 minutes pumping out huge quantities of hot air. If cooking something in the oven which generates lots of moisture then steam emits from the rear of the cooker where there is no real ventilation gap; again implying the fan which should move air from back to front isn't working when it should.

    David
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