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  1. #1
    Join Date
    Jan 2003
    Location
    Sunny Redditch....I lied.
    Posts
    262

    Electric demist heaters

    Hi all,
    Has anyone used electric heater demisters rather than a "plumbed" in heater? Just thinking out loud at the moment but looks a lot simpler?
    Bob

  2. #2
    Join Date
    Sep 2007
    Location
    Hilperton,Wiltshire
    Posts
    2,575
    Simpler?

    Andy

  3. #3
    Join Date
    Feb 2007
    Location
    West Sussex
    Posts
    8,632
    Elect will not work adequately. Believe me I spent a lot of time looking for different products and looking at the sums of heat delivered.
    Impossible to beat a small plumbed in heater, such as a T7. Ignore adverts for 12V hair driers.
    Crendon Chassis No.49
    Huddart FE428 + toploader

    Not listed in the Shelby Register.

  4. #4
    Join Date
    Jul 2014
    Location
    Longridge, Lancashire
    Age
    56
    Posts
    267
    Hi, just as another option. I believe now that Brass Craft are selling heated screens. When I spoke to Chris at Stonleigh recently he told me that an upgrade to have mine replaced would be around £200.00 ish (TBC). Not cheap but I am seriously thinking about this as one day I eventually want a hardtop too. Should be generally good for demist which would lower the need for a high air flow heater etc.

    Just needs a small hole through the body under the rubber strip and the additional wiring, relay, fuse etc.

    Just a thought.

    Cheers,
    Stu
    AK427 Gen III, Ford 347, TKO600
    Build Blog:- stu238-ak427.blogspot.co.uk

  5. #5
    Join Date
    Nov 2006
    Location
    Shropshire/Wales Border
    Age
    49
    Posts
    5,951
    Kev, don't know your views but I think its also worth pointing out that the T7, nicely packaged piece of kit that it is, isn't really going to keep you warm on a cold day. They'll get you through IVA but they're pretty anaemic I would say. The weak link in them is the fan which is really only a decent quality computer cooling fan.

    I'm strongly pondering taking mine apart and making a new box for the heater element to allow me to put a more powerful fan in there. Not sure how much extra heat can be had from the little rad in them but might be worth a try.
    Lloyd B
    Current: Crendon #54 in build - 427 Side Oiler/Cobrajet Heads/Dual 600cfm Holleys/4 speed toploader/Vintage cast knock on wheels
    Dedion Dax/Clarkson 383 Chevy with roller 4/7 swap cam, AFR195 heads - SOLD

  6. #6
    Join Date
    Feb 2007
    Location
    West Sussex
    Posts
    8,632
    Quote Originally Posted by Lloyd Barnes View Post
    Kev, don't know your views but I think its also worth pointing out that the T7, nicely packaged piece of kit that it is, isn't really going to keep you warm on a cold day. They'll get you through IVA but they're pretty anaemic I would say. The weak link in them is the fan which is really only a decent quality computer cooling fan.

    I'm strongly pondering taking mine apart and making a new box for the heater element to allow me to put a more powerful fan in there. Not sure how much extra heat can be had from the little rad in them but might be worth a try.
    Probably right, as they are in fact derived from computer parts. I had a Mini heater in the Sumo - good as rubbish, so I have always assumed driving a cobra is just a 4 wheeled version of when I used to ride a bike!

    If Chris was doing heated screens when i got mine, thats what i would have had - the best way to go imho. Then you can forget all the stupid faff with ducting.....and make your car look more original (no heaters/demist on orignal S/Cs).
    Crendon Chassis No.49
    Huddart FE428 + toploader

    Not listed in the Shelby Register.

  7. #7
    Join Date
    Feb 2011
    Location
    Northampton
    Age
    41
    Posts
    4,001
    I asked Chris to upgrade my order to a heated screen when I bumped into him at Stoneleigh - he wasn't entirely sure at that point if he'd have supply worked out, though.

    Speaking of heaters, the heater in the MR2 Roadster I used to have was fantastic - it would keep you toasty warm even with the roof down and only slightly less so with the windows down; hands-down the best heater I've had in a convertible (the M3 was useless, 645Ci only slightly better.. I guess the Mercedes 'air scarf' would oust it though). It's a huge assembly though (see here: https://farm1.staticflickr.com/638/2...2864524e_z.jpg) and I doubt it would fit unless you removed the passengers legs..
    My DeDion build diary..
    Hon Sec of the Digidash branch of the Unpopular Kit Car Design club

  8. #8
    Join Date
    Nov 2003
    Location
    West Midlands UK.
    Posts
    2,987
    Quote Originally Posted by KevinW View Post
    Elect will not work adequately. Believe me I spent a lot of time looking for different products and looking at the sums of heat delivered.
    Impossible to beat a small plumbed in heater, such as a T7. Ignore adverts for 12V hair driers.
    We passed SVA with 12v electric heaters.

    PM me for details.

    Cheers,

    Tony
    Supply by blagging, engineering by bodge......

  9. #9
    Join Date
    Jan 2003
    Location
    Sunny Redditch....I lied.
    Posts
    262
    Hi Tony
    PM sent

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