Frequently Asked Questions (FAQ) for Block Heater

1. 2005 Subaru Forester XS overheating

Ended up being a cracked radiator caused by blown headgasket. This was verified from pressure tests done at two different shops. Repair quotes at $3300 and $3500. We ended up trading it in for a new vehicle, as at 197,000 miles the price to repair was coming close to the cost of the vehicle.

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2. Why is my chimney cleanout blocked off?

Well I used a jack to punch through the mess and it turns out it was indeed just blockage. There was a bunch of crud randomly piled on top. I have no idea how it three stoogered into looking intentional.

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3. Heater problems in 2001 F150

Coolant flow through the heater core is restricted, which means the fan is able to cool off the water in the heater core before it is replaced with warm water.There are a few possible causes for this

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4. Can I block large open vent in basement

Be careful. CO is lighter than air at 70 F, but heavier than air at 32 F. Where you place the CO monitor will depend on the room temperature. Maybe use two monitors, one located at an outlet 12" off the floor, and one at the ceiling level.

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5. Sniffing into a Boiler's LED panel (Central Heating)

You might want to see the answers to a similar post in the Arduino Stackexchange: short answer: use an optocoupler in series to the LED. Using an LDR/photodiode/phototransistor would be too much sensitive to the environment light.

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6. Wanhao i3 stops printing after about 40 minutes

Have you checked your computers power saving settings, the USB port setting in particular, to see if your computer is turning off the USB port, the hard drive, or some other hardware vital to printing?

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7. Choosing the right Relay for the mission

If this is a home water heater, surely it has a thermostat which already controls a relay or solid-state switch for the heater. Why not use your AVR to switch or otherwise intervene with the thermostat circuit?

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8. Where did all the water in the basement come from.

From the efflorescence on the walls, I'd bet there's slow steady seepage through the blocks and the mortar. The only solution for this would be an external entrenching and wrap. Also:

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9. Very effective sound-proof room

To make acoustic environment soundproofing is necessary. Acoustic wall helps to prevent the outer noise to enter in the house as well as maintain privacy in conversation. Other choice is wall absorbers, it helps to enhance room acoustic. You can use green glue for insulation.

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10. What would be better for an engine driving at 60mph or 70mph? I wish to get the most miles out of my engine?

Don't know if anybody has documented this, but I think it is self-evident that slower speeds and lower rpm's will result in greater longevity. Imagine driving your car at a steady 5000 rpm, and consider it's lifespan compared to 2500 rpm

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11. Replacing a water heater--the physical task, not the plumbing part of it

A real simple solution that might work for you if you can recruit a helper: The Forearm ForkliftThese straps, if you use them as intended, work surprisingly well - you and your helper don't need to be gorillas to lift a water heater

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12. Is the open grate in the ceiling between my garage and attic necessary?

Your attic definitely does need ventilation. However, it seems really odd to me that it is vented down into your garage. Is there any kind of gas powered appliances nearby? If not, I would:.

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13. Sound made in Ford Focus when plugged in

As the comments described, you probably plugged in the block heater. Perhaps the heater warmed up the entire engine compartment over time, including the battery. Batteries deliver less current when cold, so it might have been just under the current required to turn the engine. Guess you'll find out if it starts again tomorrow!

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14. Infrared LED and Photodiodes

Without giving you the actual numbers here I can tell you from my own experiences with such IR circuits that the IR light is reflected from your body and that your body does not emit enough IR itself to fail this type of circuit. But sunlight IR is a big problem that you need to consider

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15. Should I start and idle the car for some time if I don't drive it on cold weather?

Cold temperatures are bad for batteries. They lose their charge very fast.The ideal options for you are to get an electric blanket for your battery, or keep it on a trickle charger.As far as the rest of the car, I think you'll be okay not starting it. Just keep an eye on your fluids

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16. Why aren't electric forms of heating used in internal combustion engines

First question - where do you get the electricity from? The electricity we use comes from other sources hydro, geothermal etc Combined with losses of conversion mean that using other fuels that are directly available coal etc to provide heat has been effective. Now, with global warming then we are moving away towards renewables

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17. Honeywell TH1100DH1004 - temperature signal

The Honeywell thermostat is reed relay controlled. You can pull it out of the wall to disconnect it or any other way as it activates heat or A/C by contact closure to a 24V relay coil load

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18. What is the reason for a fuse next to a thermostat?

The thermostat regulates the temperature within the normal working range. The fuse protects against exceeding that range. You have also already noticed that while the thermostat controls only the heating coil, the fuse powers down the entire appliance.

Their jobs are complementary, not mutually exclusive. They're like a regular brake and an emergency brake

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19. Circuit analysis / understanding the control board for a heater

R7 and R9 are cosmetic (their value is of no importance). They allow to de-couple the very sensitive OP AMP input nodes from the wires attached to them. They are matched to mutually compensate offset due to OP AMP input currents.

Note that the dots on pins 2,3 are incorrect

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20. Car heater taking too long to come on if at all?

Once your car becomes overheated, I think you must change your heater coil also, because if the heater coil is partially blocked taking too much time for heater coil became heat :)

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21. heater is cold until I hear a noise and heat starts immediately

It is most likely one of two things. The mode door which opens and closes as more or less heat is requested, is sticking. Or the actuator that opens it is faulty

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22. How long should I let my car warm up in the winter?

You don't have to warm up new engines they're made out of aluminum that was a procedure for old cast iron blocks, they weren't very tolerant to sudden temperature changes and were liable to develop cracks

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23. Why did the grip-centered viking shield fall out of use relative to the kite shields?

Kite shields were used to protect the legs for cavalry. Also vikings used round shields for not only single combat but group combat as well, the famous shield wall being a great example of this in play

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24. Is it feasible to use the exhaust heat to warm the engine block?

It is not feasible. Possible, yes. Feasible, no. You would spend too much money for too little gain in heat. Just a suggestion, you might consider a block heater. This would allow you to keep the block warm on those very cold nights. This would allow for quicker warm up in the morning

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25. 2003 Jeep Wrangler - Coolant Leak

I replaced the water pump on my car last Fall and the seal started leaking again almost immediately. I read that 90% of seal failures on new water pumps are due to impurities in the coolant. Gates recommends you aggressively flush the radiator, heater, and engine block separately with copious amounts of water.

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26. Leaving a car outdoors in very cold weather

Greetings from another Minnesotan! For the most part, cars are designed to be able to take weather conditions, so I personally wouldn't be too worried. There are a few things to watch out for in exceptionally cold conditions like the next few weeks here:

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27. How to get consistent and accurate readings from thermocouples?

It sound like you just have a defective thermocouple. But, I just did a google search for "Why are thermocouples inaccurate" and found this article on identifying bad thermocouples and preventative maintenance. I never thought of a lot of the tips in the article, but I haven't had such drastic temperature errors either.

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28. Using two arguments / triggers in an IFTTT recipe

It's not the same, but, you can perhaps set the switch to default on using the WEMO app, then use IFTTT to turn it off if the condition does not exist. Not as elegant as your solution, but it may work

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29. Any harm in leaving a block heater running after starting the engine?

From the second link you posted, the manufacturers literature on the third page, second question reads as follows;Do not run your engine while the engine heater is plugged in.This will create an air bubble around the element which will then cause the element to burn out prematurely.That seems to be a pretty conclusive answer.

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30. Sweetgrass MT to Anchorage travel at the end of March-how will roads be?

March is breakup season in Alaska and I assume you will encounter a good amount of slush/snow in Northern Canada as well. I would definitely pack chains and perhaps some sand

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31. Why does my 2006 Chevy Equinox have no heat when all repairs for the heat has been made?

Make sure your thermostat is not upside down. Make sure your heater core is not clogged and that the hoses are on the correct pipe going in and exiting the heater core

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32. Alternative to cartridge heater for 10mm deep hole?

I reckon a Scope soldering iron heater element might be a fit.The heater element is carbon slug set into a copper stud at one end (the other end contactsthe soldering iron tip). It runs at about 4V and 25A at full power.

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33. automotive: 2 relay circuit with extra double pole switch

Relay coils are very reliable, the most usual failure mode of a relay that's switching an inductive load is for the contacts to "burn" and fail open-circuit.In the case when the relay nevertheless fails closed you still have the protection of the engine's over-temperature alarm system

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34. How to safely heat a enclosed tent with electricity

If you have electric. I would advise a chicken coup heater. If knocked over they are made to not start fires. Made for more rugged outdoor use. Found in farm supplies

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35. E3D V6 nozzle seized into heater block

Try to, First, remove the heat block from the extruder/heat sink. Then heat the hot end to 230 'C. Then try to unscrew the nozzle while holding the heat block with a wrench or plier. Be extra careful with the heat block and with the plier.

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36. Is there a difference in cars manufactured for hot or cold climates?

I'd imagine that just swapping the coolant and potentially installing a block heater would be good enough, even if there were differences. Like purchasing any other vehicle, though, it certainly wouldn't hurt to have it inspected, and make sure that it runs without issue prior to purchasing it

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37. What is causing Mazda 3 overheating and cold heater?

In addition to what SteveRacer noted about the coolant analysis, you have all the symptoms of interrupted coolant flow. Usually its a broken water pump but in your case it could also be a clogged cooling system from driving with a leaky head gasket for a prolonged period of time

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38. Trouble starting car, cold weather. MB A140 W168

A car battery's power will drop with temperature. It would be my first port of call.Since the car ran fine when you had it jumpstarted with the help of your friend, I would have the battery tested to make sure that it can deliver sufficient juice to the starter

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39. What is causing my diesel car to struggle to start in cold (below 0C) temperatures?

I don't have a garage, but I have mounted a small 400W heater under the hood and a battery charger that come on from 4AM ready for 7.30AM _ car starts fine

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40. What items are in the cooling system loop?

You'll also have the:Some cars also have water pipes in the inlet manifold, and some have water-cooled transmission oil coolers. You've also usually got an expansion tank, but that's not part of the loop itself

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41. unknown component in mini cooler

My guess is that the device is a thermal limit switch. The device opens the circuit up once a temperature level has been reached. The main purpose of it is to ensure safety and prevent a possible fire.

The photo below is a thermal limit switch commonly found in your furnace

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42. How often do I need to change my oil in a VW TDI?

I would do the oil change every 7500 miles. A TDI is a very technical engine and with the turbo I would use only fully synthetic 5w30. Im on a 7.5k interval and am hitting 200k miles on an 05 and it has always pulled very well. On original internals also.

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43. What is coming out of these water pipes?

were you drinking at the time? if not, perhaps a subdural hematoma?seriously though, i have no idea. it could have been trapped air or some other gas that caused refraction in the fluid column. it could have appeared dark if it refracted the light the right way.

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44. Power steering stiff after hybrid cold start at -20C

Sounds like nominal behavior of power steering fluid at -20c.Unless there is no fluid involved with whatever that thing does to make the wheels turn, then it sounds like nominal behavior of an electrical system at -20c

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45. Mineral that explodes when cooling down

You might also consider something like a stud blaster (if that's the correct tanslation of "Bolzensprenger"). The usual length contraction of one component due to cooling creates enormous forces on the overall structure until it fails in an explosion-like event

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Not really, engine block heater actually heats up the actual coolant. It may keep it somewhat warm but heated blankets usually dont get that hot anymore. Not enough to warm a metal engine block. The very old heated blankets would but not these newer versions wont1. ok weird block heater leaking green?its coolant leak if its green so id try to tighten or fix it2. where do you insert the engine block heater plug on a 99 toyota corolla?no the oe block heater slides into the block in behind the engine,lets ay your looking at the open hood,in fornt of drivers side oposite of intake,there is a hole in the block that alows the oe heater unit to slide in,3. My car's block heater broke, and the temp is -50c. Is my car gonna be OK?start it up and run it each day if possible to operating temp...itll be better than just letting it freeze up4. At what temp. should you use a block heater for your car?I think it depends on the vehicle. I have driven Mercedes diesels for years. I have one with 649K miles, and I have to plug it in at 20 degrees (F) or below, else it's not going to start. The other two have half or less the mileage, and most of the time I never plug them in at all. About the coldest it gets here is 15 (F) or so normally, so I do not have the extreme temps some people have. Years ago I had an Olds 98 diesel and a Cadillac Fleetwood diesel, and never plugged in either one, and they always started. My old '89 F250 Ford pickup had to be plugged in around 20 degrees F, otherwise it had difficulty starting, too. Just depends on how the engine acts when it's cold. Some just do better than others. I've had several diesel farm tractors, never had one that even had a block heater on it, never had a lot of trouble. I drive a tractor-trailer part-time, one day a week, and we've never used a block heater on it, either. Again, just depends on the individual engine, and the temps you have. Just experiment with it. It wo not hurt anything to leave it plugged in. PS - I would LOVE to hear an explanation from the moron who gave that thumbs-down on this one.5. Where is the block heater hole on a 2012 Camry Hybrid XLE?the factory uses an existing freeze plug hole. on the side of the block. if this has an I4, remove the freeze plug under the intake on the side of the block. not the exhaust side. keeping the heater and wires away from excessive heat if possible. if it has a V6, either bank is fine. exhaust heat will be present on either side of the engine.6. Where to find a block heater for a 1998 Saturn?They do help and you can get them at any auto parts store7. Where is the block heater cord located on a 2015 toyota camryProbably at your Toyota dealers parts counter.8. Is there an equivalent to a block heater for electric cars so the battery does not suffer from extreme cold?Block heaters are required so that internal combustion cars will actually start. Electric cars start just fine regardless of temperature as has been shown all over North America for the past week.Need some help keeping your electric car running in the cold? The experts can help you | CBC NewsElectric car batteries do provide decreased range in extreme cold conditions, but it's under 20%, which given that most EVs have ranges over 200 miles these days, the US average is well under 50 and most owners have fully charged vehicles first thing in the morning, isn't an issue 99% of the time. Tesla owners especially like their cars in the winter given remote control via app to turn on the seat and steering wheel heaters.Is there an equivalent to a block heater for electric cars so the battery does not suffer from extreme cold?9. When do i have to plug in a block heater?you need one in a really cold climate area , you can also get battery covers that heat the battery also dip stick heater that heat the oil , and radiator hose heaters ,these are the easy ways to keep the engine so it will start on a cold day.
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