inline heater question

once again fellas
it's time for bill's dumb question of the day.
where in these photos do i hook this heater up?

 

do i connect it to that brass petcock?

 

Hose clamp it to the exhaust manifold. (Mmmm nice and hot.) R)


Seriously: How about clamping it to the stay rod? Water flows from pump to...

{Edit}Cut heater hose.

 

instructions say
mount heater vertically with the heater inlet (cold water line) connected to the engine block drain,radiator drain or lower radiator hose.



heater outlet (hot water line ) may be connected to the engine block at several locations :
examples (a) heater hose entering engine block
(b) hose line entering water pump
(c) engine block drain

 

You can buy an adapter for the lower radiator hose. then from there to engine block. There was once a freeze plug adapter that you could install on up stream side IIRC.
JRP

 

I am going to take a shot in the dark here, since I don't know what you are doing with this thing ,but ........it looks to me like that is a vertical electric heat exchanger. The coil ( the part with the wire) should go down so the water level stays above the end of the heating filament. The 90 degree fitting should go to the cold water side and the outlet to the hot water side. The question is where do you want the heat to be ? The lower radiator hose would be the coolest point , then the outlet would go the the engine block inlet where the lower radiator hose connects now. So...radiator outlet to heater inlet, heater outlet to block inlet. I have never seen one of these on a jeep; what is your intent on installing this? To warm the block quickly?

 

Possibly you intend to get some more heat into the cab of your jeep. If that is the case....mount it to the heater hose going into the heater core , outlet side of heat exchanger to inlet side of heater core.

 

i want it to warm up the engine itself to make it easier to start.
plug it in a few hours before i drive it.
i bought this jeep for winter storm driving.
it gets plenty cold here @7000 feet .


i plan on installing the most powerful cab heater i can afford as well.


i will use it as a toy of course also...

 

:iagree:
See previous post.

Warm up heater core faster.

If you want engine to start better. Use block heater.

 

That style coolant heater should just get spliced into the coolant hose coming out of the bottom of your radiator. It takes the radiator output (cold) and heats it and sends in into the motor to help warm the motor. It is also helping your heater warm up faster because it's heating the coolant (which is the source of the heat for your heater, assuming you have a regular heater in your jeep and not just one of the tiny electric ones that plugs into a cigarette lighter). In my mind, they're better than the magnetic block heaters that you can stick on to a motor because this way your engine is warm and your heater should blow warm air faster too. They do take longer to install, but you've only got to do that once.

The coolant heater you've got looks huge. The P.O. of my Jeep had put one in because it was used to plow in northern MN, but it's much smaller. I looked at your other post and noticed how high of a wattage that is, you'll have to let me know how fast it warms it up. Up here in MN the trend seems to be just have a smaller wattage one and leave it plugged in all night, but if I could have one that I heated up the coolant and heater in under an hour, it'd almost be like having a heated garage, except I'd still have to scrape off the window....

 

mholmes137,
i will let you know how well it works.
it came with these fittings.
i wonder if i can put them where that brass petcock is?
if not i will buy a t-adapter today.



my goal is to have something that is pleasant to start and drive @ 5am in February.

 

I had a block heater on mine and just removed it. There was a fitting where the brass petcock was and one of the hoses went there.

 

I'm not sure how the coolant flows through these motors, but I would guess that connecting to that brass fitting would work. The heater I've got has a big diameter hole through it and doesn't really slow the slow coolant down so it's installed "in series" with the coolant system versus "in parallel" like you would do by using that white adapter and the brass fitting hole on the motor. I guess in parallel would probably be ideal just to make sure that you're not impeding the flow of coolant, it's just a little more work. It looks like with the brass fitting and adapter it came with you should be able to replace that petcock with those fittings and connect that to the outflow side of the coolant heater. Then use the white y fitting in a coolant hose (technically shouldn't really matter which coolant hose, but I'd try to use the one from the bottom driver's side of the radiator to make sure that you're heating all of the coolant) and connect that to the input side of your coolant heater.

 

The white plastic one, would tie into a heater hose before the heater control valve. Some vehicles had inline valves, that would stop the flow of water when turned off. With your jeep put it in the inlet side of the heater core, to inlet side of tank heater. If you don't have a control valve inline, put it outlet side of heater core. Make sure you bleed all the air from lines well, as not to air lock, and burn out your element. this will heat the heater core also and some heat will go into the cab, when pluged in.
JRP

 

the red circled one connects here.
is the fluid coming out or going into the block at this point?

 

the blue one connects here.

 

Not positive, but I think this hose connects to an inlet to the water pump, which would make it an outlet from the heater.

It might just be the angle, but this picture scares me a bit. I believe I'm seeing a fuel hose draped within an inch of the fan and very near the fan belt and alternator pulley. I know it can get chilly in Durango, but this would be taking block heating to an extreme.

 

thats not a fuel line.
and it's the angle.

 

I believe CO64CJ5 is right about your heater hoses. The blue hose in your pictures that connects to the top of your motor is coolant out from the motor and in to the heater core.