Ive installed three of these for various customers in short order and all where good quality, arrived quickly and a straight forward install. They work well for this area where we have pretty mild winters. Just plug it in, go get a coffee for an hour and when you are ready to go it has warmed the oil and engine noticeably.

Schledorn E Verified Purchase

E-Z Heat Engine Heater 440 110V/120V

Fast and easy install on my O-200. Heats quickly. A great addition for the upcoming cold weather.

Travis C Verified Purchase

E-Z Heat Engine Heater 360 110V/120V

Easy to apply and for a good price. Highly recommend the Click-Bond wipes for cleaning and prepping the surface beforehand.

Rich L Verified Purchase

E-Z Heat Engine Heater 440 110V/120V

Used course roll-lock to remove paint/ smooth surface prior to installation. Placed on angled portion on front and smaller pad on opposite side, bottom pilot side of engine. Adhered very nicely and cord long enough to be routed to oil door. When tested it got hot as hell, this is good news if you need to wait for it. Customer service answers and is great to talk to

Grc Verified Purchase

E-Z Heat Engine Heater 540 110V/120V

The heater was easy to install by following the enclosed directions. Heater works well even in very cold temperatures

Jess D Verified Purchase

E-Z Heat Engine Heater 440 110V/120V

Fairly easy install. Had a Tanis Engine heater on my last IO-360. I live in Wyoming at 6700 feet and it gets cold. Plugged in overnight at 10 degrees with a blanket over the cowl and the whole engine was warm. Engine fired right up. Best money I have spent.

Bryan S Verified Purchase

E-Z Heat Engine Heater 442 110V/120V

Will plan to return item after researching another mfg product that uses aluminum strip instead of this flexible rubberized component. The Reiff product has a 5 year warranty . Aircraft Spruce apparently does not carry Reiff, although I use them 99 percent of the time for my aircraft needs. The Reiff unit is advertised as more forgiving if installation is somewhat not perfect.

Ron G Verified Purchase

E-Z Heat Engine Heater 270 110V/120V

Complete kit includes RTV and plastic spreader. 3M adhesive is amazing. Works as advertised. Its so nice to check the oil and feel how warm the dipstick is.

James D Verified Purchase

E-Z Heat Engine Heater 440 110V/120V

Works well

Kent J Verified Purchase

E-Z Heat Engine Heater 441 110V/120V

Unfortunately, after glueing it to my oil sump, heating pad was defective and didn’t heat up. I’m in the process of returning it for a replacement. Hopefully the next one will work. I’m sure it is just a fluke as I’ve received many good reviews from others that have them on their planes. We will see….

Jim K Verified Purchase

E-Z Heat Engine Heater 360 110V/120V

Heats oil and engine quickly! I purchased the model #440 for an 0-320 and I couldnt justify spending the money some other brands out there wanted. Installation was easy and probably took only 30 minutes, with most of the time spent removing cowling and cleaning the area where the pad sticks to.

Timothy P Verified Purchase

E-Z Heat Engine Heater 440 110V/120V

so far so good. i put it on a 16kw marine generator in my boat. at least 3 other brands failed on me after a short period of time. only thing it could have been is faulty thermostats. hope this one lasts a while.

Harold E Verified Purchase

E-Z Heat Engine Heater 270 110V/120V

Easy and installation and works great!

Chad F Verified Purchase

E-Z Heat Engine Heater 440 110V/120V

Great product, easy install lots of quick heat. Highly recommend.

William F Verified Purchase

E-Z Heat Engine Heater 440 110V/120V

Works wonders, i use an insulated engine blanket with this on my bonanza. I’ll leave it on overnight and my oil will be 90-110 degrees and my cylinders will get above 80 degrees. All of that with below freezing outside air. Well worth the money!

Owen G Verified Purchase

E-Z Heat Engine Heater 540 110V/120V

So far so good. Easy to install and works as advertised

James K Verified Purchase

E-Z Heat Engine Heater 440 110V/120V

Preparation is key! Make sure oil sump is clean, and plan out your application before pulling back the paper. Follow manufacturer directions and all should go well. Used one of the zip tie cut off “tails” as a tool to apply RTV to gap between electric block and tank. This made a good seal all the way around, and so far heater is working well.

Eric J Verified Purchase

E-Z Heat Engine Heater 360 110V/120V

Works great,highly recommend them!

Daryl S Verified Purchase

E-Z Heat Engine Heater 440 110V/120V

EZ to install, should have done it awhile ago

Lester M Verified Purchase

E-Z Heat Engine Heater 440 110V/120V

I have used EZ heaters on every plan I have owned. This one was for my Cub. It works fantastic. I turn it on with a remote switch 4 hours before I fly and the oil is at 80F with the chill take off the entire engine.

Keith H Verified Purchase

E-Z Heat Engine Heater 360 110V/120V

The fit was good but you need to bend the shape into the heating pad before applying it on the oil tank.

Dwayne L Verified Purchase

E-Z Heat Engine Heater 360 110V/120V

Fairly easy to install and provides significant heat for my IO-360. Great value!

Chris J Verified Purchase

E-Z Heat Engine Heater 442 110V/120V

This heater works great. It fit nicely on the bottom of my oil pan. The instructions were pretty limited, it could have been more clear how to install and configure, but it works very well. It heats up my engine in a couple hours.

Chrystal L Verified Purchase

E-Z Heat Engine Heater 441 110V/120V

Works perfectly. Install was a little messy, that was to be expected. Like the long enough cord. Very easy . Nick M.

Nick M Verified Purchase

E-Z Heat Engine Heater 470 110V/120V

Great product. Easy install on my Rans S-21 Titan engine. Paired with a Smart plug and surge protection I can turn it on and off with a cell phone.

Darrell M Verified Purchase

E-Z Heat Engine Heater 440 110V/120V

Fit engine O-360 perfectly. Easy to install. Don’t yet know how well it will heat.

Scott J Verified Purchase

E-Z Heat Engine Heater 440 110V/120V

It did not fit engine O-360 as advertised, despite my A&P installing with me. Illustration definitely not to scale. Ordered heater 440, which should fit, at least based on the template.

Scott J Verified Purchase

E-Z Heat Engine Heater 441 110V/120V

nice and works good!!

Jack M Verified Purchase

E-Z Heat Engine Heater 470 110V/120V

Very nice quality engine heater with an excellent price. Have had one on our A36 now for over 10 years with no issues. Your engine will thank you for a warm oil starts! Key to making it long-lasting is surface prep and a quality installation, especially sealing around the edges of the heat pads.

Integrity A Verified Purchase

E-Z Heat Engine Heater 540 110V/120V

Difficult to install Failled shortly after instalation. Manufactured replaced it. Returned it to aircraft spruce for full credit. The company stand behind their product and Aircraft Spruce are a great company to deal with

Gabe J Verified Purchase

E-Z Heat Engine Heater 360 110V/120V

Great speedy helpful service.

perfect fit and direction of installation was great. made it very easy

Easy to install and seems to heat up very fast. Early to tell about longevity but so far I’m pleased with this unit.

Bought two for my Baron. Even though it’s in a heated hangar I use the pads for preheating the oil during winter ops. Makes run ups much shorter in Northern Illinois.

I received this heater unit promptly with good instructions and easy to follow. Easy to install. I have not plugged the unit in as of yet, except to test due to not really any cold weather here yet. Worked well when tested.

6 quarts oil in a C145 Cont. 45deg to 65deg in 15min.

Great little heater, very light, easy to install and puts out a tonne of heat for its size. It heats up the whole engine in half the time that it says.

Perfect fit. Happy!

I installed model 441 on my 172M and it works as advertised. Outside air temp was 10F. I had an engine blanket on and plugged it in overnight. The temp according to the digital sender in my engine monitor said the oil temp was 66F, well within a safe temp for starting. The cylinders also felt warm to the touch and after starting, the engine was quickly up to operating temp. Great product.

Thoroughly impressed. As others have stated this pad will heat the entire engine, cylinders included. Sub-freezing temps in the hangar and my oil temp was 80 with a blanket over the cowl, 65 without blanket. Highly reccomend.

Ok

Great product! Very simple to install and to use! Thanks

Nice product, easy to install.

Good product. Edge sealant included. Easy to apply.

The heater was easy to install and came with high temperature sealant for the edges and a plenty long cord with a light up plug. It worked immediately and I’m happy with the results.

Easy to install, works great

This heater works absolutely awesome. I live here in Alaska, and a three hour preheat with this oil pan heater and a heavy engine blanket even has the cylinders warm to the touch on an 0-320 Lycoming

Works great, e-z to install!

Great price and great product! Heater does not need any paperwork for the FAA which is a plus. EZ-Heat answered my questions about what model for the engine in my Piper.

Works great.

Easy to install. Works great. Would recommend the U-Phone-iT cell uplink which allows you to just send a text to turn it off and on versus driving to the hangar to plug it in before every flight.

Installed this on my Cessna 150L and I’m happy with it. Install was straight forward and with it turned on for just 1 1/2 hours with the outside air temp around 32 the Cessna started right up.

Easy to install, heats on cold days in an hour. Great product. Installation took less than 30 minutes after a quick run up.

Used the E-Z Heat 440 last winter for the first time and it worked great! Easy and quick to install!

Over the weekend I installed this E-Z HEAT ENGINE HEATER 440 110V on the bottom of my oil sump. This morning I went to hangar to see how well it worked. When I opened hangar door the thermometer read 33.8 degrees. On prior days this would have ensured a very iffy engine start. I know 33.8 is moderate temperatures for you guys that live in really cold climates but out here in sunny, Phoenix AZ that is freaking cold and my plane does not like to start when it is cold. Anyway, the unit indicated it was on and working as it should be. I rolled the airplane out of the hangar. I turned the prop by hand 6 times just to get oil in to the system. I jumped in and went through a normal engine start check list. I am very happy to report the engine started easily within three or 4 seconds with no special handling of throttle or mixture. She just started like it was a mild spring morning. I believe my problem of cold morning starting in my home hangar world is solved.

Works great. After pre-heating all night in 20° F weather, I found 60° F on the pan, 50° F on the oil itself (laser thermometer) and 45° F all the way up on the top of the cylinders! Install was messy, but straightforward. Follow instructions carefully. Make sure sump is clean, clean, clean. Used a floor jack and gentle pressure with rags to provide the 10 minutes of pressure needed after you initially apply the adhesive. Competitors have smaller 2-prong plugs. This one has a huge illuminated 3-prong plug. The illumination is nice, but the cord is huge and way too long. For aircraft applications, it only needs to be a few inches to wrap it around an engine mount. You have to run an extension cord anyhow. PS: Whatever size is listed for the O300A was a PERFECT fit, right down to the notch for the drain.

Great product, we have them on all 7 of our planes. Just plug them in and in 2-3 hours the whole engine is nice and warm, even when its -30 outside! We have tried other types and none have worked as good as the E-Z heat models, they also have the best price!

Once it sticks, it stays no way to remove and reposition. Doesnt wrap around the tight curves at the ends of the O-200 kidney sump very well. Stick on the flatest place possible. Gets hot VERY quick and will without a doubt preheat the engine

C3 A Verified Purchase

E-Z Heat Engine Heater 360 110V/120V

The engine application guide recommended a model 441 for a Lycoming O-320, however it did not fit on my O-320-A2B. I returned it for a model 440 and it fit perfectly.

Miles K Verified Purchase

E-Z Heat Engine Heater 441 110V/120V

When I received this and my AME installed it, it didnt work - wouldnt heat up at all. Aircraft Spruce was amazing about getting me a replacement unit before they even got the malfunctioning one back. They were great to deal with, and very helpful. And the replacement unit is working great, so I just got unlucky and got a lemon the first time.

Great looking simple unit. Installed on IO 550 mounted in a 1967 U-206B. Instructed to use the supplied plastic putty knife to squeeze air and excess silicone out from under heater pad. Problem is plastic putty knife does not slide across rubber like unit. Afraid to use a lubricant. Worked air and excess silicone out with fingers. Have not plugged in yet. Testing today.

I ordered the model 440 which was specified for my TCM TSIO-360-SB2 engine (M20K). However, the fit isnt very good. That model is called a 4x4 square. But where the cord enters the heating element, there is about a 1x1x1/3 fatter section that must house the brains of the device (Ill call it the control box). The fatter control box section is on one side along the adjacent side of the square--essentially making the device 5 long on one side, 4 long on the opposite, and 4 wide with one side L shaped--offset such that it seems the control box should go around the drain plug (the L), allowing the heating pad to be mounted as close to the bottom of the sump as possible. But putting the control box to the side of the drain plug puts the side of the heating element over the side of the oil pan, which has semicircular cutouts long the sides allowing for the application of a long socket wrench when undoing the oil pan. There was really only one place to put it--the entire thing behind the drain plug, with the control box towards the plug. This wasnt great though as the oil pan is sloping up there, the rear edge of the heating pad is completely against the rear edge of the oil pan (towards the accessory gearbox), and--most importantly--the control box is near (behind) the drain plug. The curvature of the pan in that location led to the control box not sticking along one edge, despite my preheating all surfaces per the directions and applying pressure longer than the specified 15 minutes. I hope that this wont result in the whole pad peeling off or otherwise coming unstuck over time. It seems this model should really be just a bit narrower with a centered control box on the short side. Perhaps a 3.25x4 pad, with the 1 square control box centered, meant to be mounted away from the drain plug. I do think this is a relatively efficient and elegant way to heat the oil, and it seems to work well (it does take some time when the air/oil is really cold). I hope mine stays put.

Seems like a nice product, straight forward install, but it got 3 stars because the tube of high temp silicone sealant that came with it was dried up and hard.

Schledorn E Verified Purchase

E-Z Heat Engine Heater 360 110V/120V

The product I am sure is a good product however it will not fit my application. I had to order another part to accommodate. It was disappointing not having more information to know whether it would fit. The measurements provided do not include the thermostat thus you need additional surface area to make the contact.

After spending just under $300 to get this thing installed by a licensed A and P, about two minutes after plugging it in the first time, it started smoking badly. Had to remove it and confirmed that when you plug it in, it will attempt to burn down your hangar. Ordered a REIF which has been a success.