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Kat's 24150 150 Watt 4"x 5" Engine Oil Pan Heater

4.4 4.4 out of 5 stars 363 ratings
Brand KAT'S
Special Feature Electronic Thermostat
Indoor/Outdoor Usage Outdoor
Product Dimensions 5"D x 4"W x 0.1"H
Mounting Type Floor Mount
Power Source
ac
Heating Method
Forced Air
Item Weight
4.8 ounces
Heat Output
24150 Watts

About this item

  • Fit type: Vehicle Specific
› See more product details

There is a newer model of this item:

Kat's 24150 150 Watt 4"x 5" Engine Oil Pan Heater (24150X)
Kat's 24150 150 Watt 4"x 5" Engine Oil Pan Heater (24150X)
$35.20
(24)
In Stock

From the manufacturer

Kat's 150 Watt 4"x 5" Universal Hot Pad Heater

  • Oil and acid resistant, pliable.
  • Available from 25 watts to 1200 watts.
  • Easy to install, as it requires little mechanical ability.

Product Description

A pre-heated engine saves fuel cost, starts quicker and runs smoother. Keeping your heater in top-shape with Kat's replacement parts will also save on engine wear and tear.

Product information

Technical Details

Additional Information

Warranty & Support

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Kat's 24150 150 Watt 4"x 5" Engine Oil Pan Heater

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What's in the box

  • Engine Heater

    • Product guides and documents

    Installation Manual (PDF)

    Looking for specific info?

    Customer reviews

    4.4 out of 5 stars
    4.4 out of 5
    363 global ratings

    Customers say

    Customers like the quality, performance, and ease of installation of the space heater. They mention that it heats up quick, works very well, and is easy to install. They also appreciate the adhesion, saying that it sticks incredibly well to oil pans. Customers also like the ease of starting. However, some customers dislike smoke. Opinions are mixed on the value.

    AI-generated from the text of customer reviews

    131 customers mention101 positive30 negative

    Customers like the quality of the space heater. For example, they say it heats up quickly, provides great heat as soon as it's started, and is still heating properly. Some mention that the thermal conduction and insulating properties reduce cold starts. Overall, most are satisfied with the quality and functionality of the product.

    "...By pre-heating the oil with this pad, I've noticed faster cranking (when it is VERY cold) and I've eliminated the piston slap in cold temperatures..." Read more

    "...So it heats fast, but if you're not using it on something big enough to easily absorb all of it's heat you may have an issue with it NOT have any..." Read more

    "...outside and always starts easily no matter how cold it is, and warms up much faster. I have the 4.6 which as 7 quarts of oil...." Read more

    "...properties of silicone material, as flimsy as it may seem, are thermal conduction, and insulating properties...." Read more

    92 customers mention92 positive0 negative

    Customers are satisfied with the performance of the space heater. They mention that it works well, is effective, and easy to install. Some say that it heats up fast and does so completely. Some customers also say that the heating pad works great for heating oil pans on backhoes and loaders. They recommend using isopropyl alcohol to clean the backing. Overall, most are happy with the product's performance and recommend it to others.

    "...Overall, this is a great buy, cheap, effective and easy to install!" Read more

    "...The heater worked well, helping heat the oil to around 70°F near the pump in under an hour...." Read more

    "...overall product works great...." Read more

    "These work great. I purchased two for my 1994 Ford Explorer...." Read more

    34 customers mention34 positive0 negative

    Customers find the installation of the space heater to be easy. They mention that the prep work was easy, and the installation was not difficult at all. Some say that the product is lightweight and effective for their 8 quart oil.

    "Pros:- Cheap- Easy adhesive-backed universal installation- Lightweight- Effective for my 8qt oil capacity..." Read more

    "...Installation is easy, just stick the heater (it has 3M adhesive on the back side) to a cleaned oil pan and seal the edges with silicone...." Read more

    "150 watt heat pad. Used to heat a vehicle oil pan. Installation was pretty easy...." Read more

    "...I got a shock from it once because I wasn’t paying attention. Super easy to install. Next best thing after an oil/coolant heater plug." Read more

    19 customers mention16 positive3 negative

    Customers like the ease of starting with the space heater. They mention that it helps their car, tractor, bike, and motorcycle start right up in the cold.

    "...My truck is parked outside and always starts easily no matter how cold it is, and warms up much faster. I have the 4.6 which as 7 quarts of oil...." Read more

    "...These do make it much easier to start your car, though. I live in Alaska, so overnight low temperatures of -10 Fahrenheit aren't uncommon...." Read more

    "...I put this on my 2000 Chevy Lumina on a 3 hour timer and my car starts easier, warms up faster and saves me a lot of wear and tear on my engine in..." Read more

    "...With this and an extension cord with a timer, my car always starts smoothly and easily, even well below 0 degrees...." Read more

    17 customers mention12 positive5 negative

    Customers like the adhesion of the space heater. They say it sticks incredibly well to oil pans, and is fastened securely. Some mention that the pad has a self adhesive side and silicone bonded the pad securely.

    "...Do clean you pan really well to remove any oil or grease. It adhered well, however I put high temp RTV around the outer edge...." Read more

    "...Update: Been over 3 years now, and no problems. Units still fastened securely to oil pans and still heating properly...." Read more

    "...I did my best to clean it, but the pad wouldn't adhere well due to a hump in the pan, and these pads seem to really hate air gaps and the resulting..." Read more

    "...Heater comes with an adhesive side...." Read more

    22 customers mention14 positive8 negative

    Customers are mixed about the value of the space heater. Some mention it's well-made, worth the price, and affordable. They say it'll pay for itself in no time. However, other customers say it isn't very powerful and is defective.

    "Pros:- Cheap- Easy adhesive-backed universal installation- Lightweight- Effective for my 8qt oil capacity..." Read more

    "Sadly one of the two of these I ordered did not work when I got it- open circuit, infinite resistance...." Read more

    "...its bound to reduce wear on engine. well worth the money b/c it costs mere cents in electricity...." Read more

    "...Five stars because they are inexpensive and do exactly what they are meant to do." Read more

    11 customers mention0 positive11 negative

    Customers are not happy with the smoke produced by the space heater. They mention that it starts to smoke right away, with a strong electrical burning smell. Some customers also say that the pad had caught fire and that it burnt out in few months of use.

    "...They stink a bit when heated, but that is going away with use...." Read more

    "...The pad had caught fire! I'm so lucky it didn't catch the carpet, seats, or gas tank on fire!..." Read more

    "works great, smelled like crap in the beginning but faded away. I use it to preheat my oil on a Lanair oil burner...." Read more

    "...unbelievably hot and the sticky adhesive on one side melts and stinks to high heavens...." Read more

    9 customers mention0 positive9 negative

    Customers are dissatisfied with the plug of the space heater. They mention that it is not grounded, and needs a three-prong grounded plug. They also say that the cord pulls out easily and is not weatherized.

    "...I tried to remove the pad, but the cord pulled out pretty easily. Also, the adhesive backing had been affected by the oil and was peeling off...." Read more

    "...I do wish that the plug was weatherized as I am starting to see some wear on it from water damage...." Read more

    "...Not sure if the stickiness will last to keep the pad on. Wish it had a disconnect plug where the wires go into the pad." Read more

    "...BUT...it really needs 3-prong wiring and another foot of cord. I'd happily pay an additional dollar for that!" Read more

    Great product :)
    5 Stars
    Great product :)
    I bought this heater as my Jetta had no plug in heating system.I considered a standard coolant heater, an inline system and a magnetic variant.As I am way more concerned with possible engine wear than comfort I went with the Kats based on reviews and ease of installation.This thing it literally peel and stick, Clean the surface first and your good to go :)The cord is very long (Almost too long for my application) but zip ties solve that :)I was a tad dissapointed that It isnt 3 prong (as advertised) but thats ok.I find if I plug the car in when I park it and leave it over night (its only 150W so very little power use) the car will stay above 85'F. I know thats not very warm but at -11 it all helps.I find 4 hrs is the minimum time to plug it in as it heats slowely, its more a gentle nudge to warm.Conclusion: If your concerned about engine wear, power consumption or just want to do something nice for your car consider this product (or one like it) My only regret is not buying one sooner for all my previous cars :)
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    Top reviews from the United States

    L. Wong
    5.0 out of 5 stars A must have for cold winters!
    Reviewed in the United States on December 16, 2013
    Verified Purchase
    Pros:
    - Cheap
    - Easy adhesive-backed universal installation
    - Lightweight
    - Effective for my 8qt oil capacity

    Cons:
    - Cord length may be a bit short to reach your transmission
    - Does not come with RTV or silicone

    Detailed Review:
    I own 3 sets of these Kat's oil pan heaters. I am very particular about proper maintenance on my vehicles and care for them diligently. These oil pan heaters are overkill in my application, but provide me with cheap insurance and also piece of mind. I live in New York and drive 1 mile early each morning to the train station. Although the cars are all garaged, cold starts are still very hard on the cars. They also never get a chance to warm up especially when morning temperatures are below 20 degrees. Although I switch all my oils to 0w30 in the winter (the "0w" denotes the low temperature viscosity, the 30 is the operating temperature viscosity), one of my older cars still has a lot of piston slap (engine knocking noise). By pre-heating the oil with this pad, I've noticed faster cranking (when it is VERY cold) and I've eliminated the piston slap in cold temperatures with the side benefit of the heat coming on much sooner. I've recommended these to many of my friends already. They've also noticed the faster cranking and availability of heat, especially when their cars are parked outside.

    I currently have all 3 vehicles connected to timers that turn on 2 hours before before I need to leave the house. The timers are connected to the cars via light-up extension cords. I find the lights in the extension cords helpful in reminding myself and my wife to disconnect the cars before driving off.

    Regarding the minor cons (not significant enough to take away a star), I had recently considered using the same pad to warm the transmission, but found that the cord length was a bit too short to reach the front bumper. The solution would be to consolidate both the engine and transmission heater into a single extension cord, so this is not a big deal. The second note on the RTV/Silicone relates to the instructions to seal the edges of the pad with silicone to prolong the life of the adhesive. I would not imagine many people to have RTV or silicone readily handy. Including the small amount that the pad requires would have been nice. Although it can be a bit messy or annoying, I would definitely recommend sealing the edges to prevent water, oil and dirt from weakening the adhesive.

    Overall, this is a great buy, cheap, effective and easy to install!
    One person found this helpful
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    Thomas H. Lawler
    5.0 out of 5 stars Really warms up what you want
    Reviewed in the United States on November 18, 2011
    Verified Purchase
    I was looking at this and one of the magnetic heaters & wasn't sure which was best, so with both being ~$25 (where it's not like buying a car) I got one of each (figuring I may put one on a car and keep one for other uses). One of the places I wanted to be able to use them was on a small engine (like for a generator or snow-blower) and with those having an aluminum block (where the magnet won't stick) I got a steel plate ~1/8 thick I could bolt up to the engine base. I put the magnetic heater on the plate (without it on the engine yet) & plugged it in, after 1 minute the plate seemed totally cold still. I pulled the plate off and put my hand near the unit where it's base was warm, so put it back on. Apparently, the magnetic bars stick out enough that it leaves a 1/16-1/8 gap between the base creating the heat and the attached plate. So the heat either needs to "jump" the air gap or all be funneled thru the little magnet bars to get where you want it to go. If we're talking about outside temps of 20 or less where you want to warm an engine, trying to warm the air around it doesn't seem great to me.

    So I then tried placing this "heating pad" unit on the same plate (after cleaning it as per instructions and putting a bead of silicone around the edge that needed to dry). With it plugged in, the plate is too hot to hold within 1 minute (and was at 200 degrees within 2 minutes). So it heats fast, but if you're not using it on something big enough to easily absorb all of it's heat you may have an issue with it NOT have any temp control (although they say it has such).

    So my conclusion is if you want good heat transfer, the heat pad unit seems better with full contact. If you want an easy to slap-on or removeable unit, the magnetic one may work.

    Just be sure to look at what you plan on mounting this on. If thinking of your oil pan, you want one that is smooth with no "ribs" or ridges and has a flat surface the size of this. They say to "use a roller to be sure of no air pockets under it" and if the pan has ridges or you try to go around a corner, you'll likely have issues with it sticking well. Most engine blocks don't have this big an open/smooth space for it, so oil pans may be the only good place.

    Note: Both units say in the instructions "Don't place on painted surfaces because it'll damage the paint", so you want bare metal for either (even if it means striping off paint). Also if you're wondering "How do you warm a generator engine with power out (which is when you need it)?" I have a deep cycle battery & inverter that should work for ½ hour, then with the gen going I can recharge.
    21 people found this helpful
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