Want to install an Engine Block Heater yourself? This guide may help.

Discussion in 'Gen 2 Prius Accessories & Modifications' started by Green Hokie, Jul 15, 2007.

  1. patsparks

    patsparks An Aussie perspective

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    <div class='quotetop'>QUOTE(hill @ Oct 11 2007, 01:59 AM) [snapback]523651[/snapback]</div>
    Maybe you could make them bigger too please? :D :lol:


    Hey has anyone thought about putting a small heater inside the cabin running on the same timer as the EBH to pre-heat the cabin reducing reliance on the ICE to heat the cabin? Would only need a couple hundred watts I would think. A thermostatically controlled heater would minimise waste. It could mount under the front seat or under the dash out of the way.
     
  2. nmrickie

    nmrickie Member

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    Does anyone have advice on connecting to power cord to the heating rod?

    I found the right hole right away. Rod went in without a hitch, clip toward rear of vehicle, easily snapped into place. Took me 10 minutes. I thought "this is going too easy". :blink:

    For the last hour and a half I've tried and tried to get the cord plugged into the rod. I thought I had the orientation figured out beforehand. I've tried every which way. I don't think I'm getting close at all. I'm about ready to give up.

    Does anyone remember which way the power cord faces when connected to the heating rod?
     
  3. ndberg

    ndberg Junior Member

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    <div class='quotetop'>QUOTE(nmrickie @ Oct 19 2007, 05:55 PM) [snapback]527912[/snapback]</div>
    I have a new EBH sitting in front of me, hopefully I can describe this in words.. If I hold the cord with the holes of the connector facing me, and the cord hanging straight down, the holes look like a face -- 2 eyes at the top, and the mouth at the bottom. In this position, the heating rod would have the clip also straight down.

    In other words, once the cord is plugged in, the cord should stick out of the heating rod in the same direction as the clip sticks out of the heating rod.

    Hope this helps!
     
  4. tsalfie

    tsalfie New Member

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    Great guide. I got mine installed in about 20 minutes. It could have taken hours without this post. If anyone in the Boise, Idaho area needs help with this, I'd be happy to lend a hand.
     
  5. danatt

    danatt New Member

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    <div class='quotetop'>QUOTE(nmrickie @ Oct 19 2007, 05:55 PM) [snapback]527912[/snapback]</div>
    The 3 holes in the plug form a triangle. We'll call the apex of the triangle the hole pointing in the direction of the cord. When the plug is connected to the heater, the apex is pointing towards the rear of the vehicle.

    I did the install a couple weeks ago. This post was extremely helpful.
     
  6. nmrickie

    nmrickie Member

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    <div class='quotetop'>QUOTE(danatt @ Oct 25 2007, 07:35 PM) [snapback]530526[/snapback]</div>
    Thanks. I ended up taking a break and trying the next morning. I did get it to fit.
     
  7. satwood

    satwood Member

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    Hey Guys,

    I just wanted to say thanks for some very well written instructions. When I started the project I tried to find the hole for the heater without looking at the pictures and I would NEVER have been able to find it. I was looking near the oil pan - i.e. to heat the oil. This hole is way up higher near the #4 cylinder. Thanks for saving me a lot of time.

    The heater raises the engine block temperature about 45 degrees F based on my sampling with an IR thermometer this morning. It was 25 degrees when I went outside. the heater was plugged in all night, and the front of the block averaged around 65 degrees. The rear of the block near the center was over 70 degrees. It seems to work very well.

    Steve
     
  8. GeneD

    GeneD New Member

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    EBH Power USe

    Does anyone know how much power the engine block heater draws?

    Also, how long do you need to power it to warm up the coolant?
     
  9. adegiulio

    adegiulio Junior Member

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    Just got mine installed. Finding the hole was a piece of cake (thanks to this thread). For me, snaking my arm up there and actually getting the heater into the hole was a big pain in the butt. Kinda wish I had an extra elbow
     
  10. JimboK

    JimboK One owner, low mileage

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    It draws about 400W.

    The consensus seems to be that a 3-hour prewarm time is optimal.
     
  11. mldoc

    mldoc Junior Member

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    Received mine earlier this week. It seems as if the split-loom has now been replaced with some sort of lower profile silver material. l plan on installing it at the first oil change, as I unfortunately have nowhere to plug it in on a regular basis currently.
     
  12. jkanderson7

    jkanderson7 New Member

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    EGH Installed Successfully!

    Used the guide and photos to install my EBH and although I had to be a contortionist, I managed to install from under the car with feet facing front - had to elevate the car a bit to slide under but I did it. After installing, was wondering if it would be more efficient to plug the power line into the element first, then insert into the block - it was kinda dicey plugging it in by feel, after finding the actual element insertion was such a breeze.

    Don't know about fuel savings yet, but it sure is nice to have warm air right away - that sold my wife on this purchase/installation right away!
     
  13. efusco

    efusco Moderator Emeritus
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    Won't work, there's not enough room to get the core into the space with the plug attached.
    Congrats on getting it installed...you'll appreciate the benefits right away.
     
  14. John CCP

    John CCP New Member

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    EBH + blocked grill?

    Would it do any harm to use an EBH at home and block the grill for faster engine warm up when there's no outlet available?
     
  15. efusco

    efusco Moderator Emeritus
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    no harm at all (if you stay within the outside air temp range recommended in the grill block thread)...it's what many of us do.
     
  16. Rxmxsh

    Rxmxsh Member

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    This thread is great! However, I don't have ramps and for me, I'd rather install from the top if possible. Can someone direct me to DIY thread for a top install?
     
  17. nbj6879

    nbj6879 New Member

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    Can someone take a pic of the EBH after it has been installed. I used a mirror and light and I still can not find where it goes. Does it go into a slot?

    Thanks
    Nick

    04' Prius

    PS Never mind found one in another thread.
     
  18. altruistguy

    altruistguy Junior Member

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    EBH Install went great!

    Hello folks,

    Thanks primarily to Green Hokie's excellent "install from below" instructions, I am now the proud owner of a self-installed (and functioning!) Engine Block Heater!

    And boy, that thing about Fire_Engineer's "DNA Distribution Tour" really is true. My right hand had no fewer than five blood-producing scrapes on it.

    One cool thing about doing this myself is that the money I saved by installing it myself (i.e., anywhere from $90 to $300, based on the experiences of others as indicated in various threads) was enough to pay for the entirety of:

    The block heater itself ($49 from MetroTpn.com)
    Low Profile Ramps ($39.94 from Amazon)
    A Pair of Chocks ($9.94 from Amazon) and
    A Digital Heavy Duty Timer - for use inside my garage ($18.40 from Amazon)

    Because my Amazon purchase was over $25, the three things I got there shipped for free too.

    Incidentally, my plan to avoid forgetting to unplug is to run a loop of the (heavy duty) extension cord through the driver's side door handle -- thus I will not be able to get in the car without being reminded to first unplug the block heater.

    I'm really excited about trying the EBH tomorrow morning! It was about 12F this morning -- and I'm looking forward both to a slightly more comfortable (i.e., warmer) trip and somewhat better gas mileage during the first few five to ten minutes of each trip.

    Eric E. Haas
     
  19. Slartibartfast

    Slartibartfast Senior Fjord Architect

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    Hobbit has one on his site here.

    Prius heat-efficiency mods

    The first page covers the take-apart. You need to do everything there first (except take the hood off). The link at the bottom takes you to the second page where you install it.

    Some personal tips. First, when it says you need to wrap your whole body over the engine compartment to reach down, you really do. I'm 6'6" and thought I could reach low enough to get the coil in just with my arms. I couldn't. Second, it really does help to get a feel for everything before doing it for reals. If you've never messed around with the car before, this will take you far longer than the 30-60 minutes advertised. Also, listen to all the nitpicky stuff that people here have told you. I wasn't sure, but did it anyway. It helped immensely, like this.

    Before you go outside, the first thing you want to do is open the box and repeatedly plug and unplug the heater cord from the core. They stick, especially the new ones, and you need to get a feel for how they fit and try to soften the rubber a bit. You'll need to apply quite a bit of lateral force at just the right angle to get that secured.

    Once you get everything off, also mentioned on most of the threads, is to reach down into the space with your fingers and find the hole in the block. You don't just want to find that, but you want to feel for where the spring latch will catch on the block. You also want to put the core down there, and try to get it partially in without latching it before putting the thermal grease on. Once you feel how deep and at what angle your arm needs to be, it's a lot easier to find the core's home when it is covered in grease and about to slip out of your fingers. If I remember right, the hole is on the driver's side of the block, and the latch is about 135 degrees toward the firewall, so that's the approximate angle you want to face the latch when you put it in. You also need to make a note to turn the cord the same angle.

    If I had it to do again, I might spring for the ramps, but I learned a lot about the basic setup of the car this way, and how to clean the cowl, replace the wiper arms and motor, and some other things if I had to.

    Best of luck.
     
  20. Rxmxsh

    Rxmxsh Member

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    Thanks. I ended up using Hobbit's guide, and went from the top. I tried from the bottom first, but could NOT find the stupid hold. :) The whole thing took 1.25 hours, going in from the top.
     
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