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Thread: In car wired Block Heater?

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    Quote Originally Posted by MightyMirageMpg View Post
    Here is my block heater. Its the "Kats" version made for the mirage.

    35.7 ohms, 110vac.

    That figures too, 338 watts and 3 amps at 110vac

    Attachment 7662
    Right on! When it comes to making electrical measurements, I trust Fluke meters.


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        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 49.7 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.7 mpg (Imp)


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    Eggman your inbox is full

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    Quote Originally Posted by wilbur View Post
    Eggman your inbox is full
    Sorry! I cleared out a few messages...

    Quote Originally Posted by Spadesheart View Post
    Is there a way to wire a block heater internally?
    I may be wrong, but isn't this handled by the PTC heaters? Someone help me out here.

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        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 49.7 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.7 mpg (Imp)


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    Quote Originally Posted by Eggman View Post
    Sorry! I cleared out a few messages...

    I may be wrong, but isn't this handled by the PTC heaters? Someone help me out here.
    If this is the case, it unfortunately does very little to help fuel economy. I'm dreading what it's gonna look like when it gets actually cold

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    Senior Member MightyMirageMpg's Avatar
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    What's a ptc heater?

    Edit: https://en.m.wikipedia.org/wiki/Heating_element

    Cool very clever never knew that's how self regulating heaters functioned

    --are block heaters suppose to be this type of element?
    Last edited by MightyMirageMpg; 12-08-2016 at 01:52 PM.

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    Quote Originally Posted by MightyMirageMpg View Post
    What's a ptc heater?

    Edit: https://en.m.wikipedia.org/wiki/Heating_element

    Cool very clever never knew that's how self regulating heaters functioned

    --are block heaters suppose to be this type of element?
    I did a search of ptc heater and Mitsubishi mirage and was directed to a post on this site. It is interesting, but it's sad that it doesn't do the job. I've never seen a such a large difference in fuel economy from winter to summer in any other car before. And really this started mid fall when the temperatures were around 15 C

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    I think it only heats air for the passenger compartment, and only under certain conditions (such as calling for max heat, I think.) That, and load the alternator down.

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        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 49.7 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.7 mpg (Imp)


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    Quote Originally Posted by Spadesheart View Post
    If this is the case, it unfortunately does very little to help fuel economy. I'm dreading what it's gonna look like when it gets actually cold
    You could use 12v to power your Kats heater but then it would pull close to 35a@12v. That would squash a 12v car battery in short time. Unless you got a very large capacity battery, a switch like in motor homes that isolates batteries and automatically charges they batteries and a time to turn your heater on and off.

    You could with a 70amp-hr battery get two hours of heating time but at low temps that same battery would only provide about 50% capacity so count on one hour of heating. You've got me thinking about this as a project. It might work and provide someone like you with better fuel economy. It won't work for someone who's going to drive for 5 miles or less after they've started their car @-20F (or C)

    Since you're driving from Cambridge to Brampton which is about an hour IIRC, more if there's traffic, there is enough time to fully recharge the battery used for heating.
    Last edited by Wallythacker; 01-05-2018 at 10:53 PM.
    Zero, my 2014 ES Plus gone but not forgotten. We're driving the Beetle of the 21st century

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        click to view fuel log View my fuel log 2017 Mirage ES PLus 1.2 manual: 39.0 mpg (US) ... 16.6 km/L ... 6.0 L/100 km ... 46.8 mpg (Imp)


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    Quote Originally Posted by Wallythacker View Post
    You've got me thinking about this as a project.
    Wallythacker, this is interesting. I'm looking forward to seeing how this turns out for you.

    How do you plan on making this work on 12 volts when the Kat's heater is designed for 120 volts? Are you going to use an inverter or voltage booster of some sort?
    Last edited by Eggman; 01-06-2018 at 01:04 PM.

        __________________________________________

        click to view fuel log View my fuel log 2015 Mirage ES 1.2 manual: 49.7 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.7 mpg (Imp)


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    Quote Originally Posted by Eggman View Post
    Wallythacker, this is interesting. I'm looking forward to seeing how this turns out for you.

    How do you plan on making this work on 12 volts when the Kat's heater is designed for 120 volts? Are you going to use an inverter or voltage booster of some sort?
    I would think the Kats heater is nothing more than a nichrome resistance wire in a tube. If so, AC or DC is irrelevant. It will heat regardless of the power source.

    Just have to figure out if enough current will flow from a 12v source to heat the element.


    Zero, my 2014 ES Plus gone but not forgotten. We're driving the Beetle of the 21st century

        __________________________________________

        click to view fuel log View my fuel log 2017 Mirage ES PLus 1.2 manual: 39.0 mpg (US) ... 16.6 km/L ... 6.0 L/100 km ... 46.8 mpg (Imp)


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