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Water vs Air

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Odd arguement, and I think I'm missing the point. In my truck, hot water from the engine passes through the heater core. The core is mounted in the cab, and has a large fan that blows air through it. A very simple loop that doesn't even have a method of stopping the water flow. When no heat is wanted the air flow is turned off.
All of which is very off topic.
To the O.P. If you choose to use a heater core they are easy to mod if you're handy with a torch, keep the core upright and full almost to the top with water, and you won't have a problem with melting the solder around nearby connections. Use a good quility flux (I like Laco) and flush it well when you're finished.
 
Originally posted by: Greenman
Odd arguement, and I think I'm missing the point. In my truck, hot water from the engine passes through the heater core. The core is mounted in the cab, and has a large fan that blows air through it. A very simple loop that doesn't even have a method of stopping the water flow. When no heat is wanted the air flow is turned off.
All of which is very off topic.
To the O.P. If you choose to use a heater core they are easy to mod if you're handy with a torch, keep the core upright and full almost to the top with water, and you won't have a problem with melting the solder around nearby connections. Use a good quility flux (I like Laco) and flush it well when you're finished.
Click to expand...

If you don't feel comfortable with, or do not have, a torch, than your local radiator shop can easily do it in approx. 5-10 minutes.

Weapon over at Xtreme actually cuts the inlet/outlet tubes out of the heatercore completely and than taps the holes for a threaded barb. I just cut the bulged tip off of the inlet/outlet tubes and soldered two barbed fittings (one side is barbed and the other has an I.D. just larger than the heatercore tubes) on that I picked up from a plumbing store. They are slightly smaller than a true 1/2" barb but I don't think flow is impeded much. It turned out to be a lot easier that way.

From the reviews I've seen, radiators and heatercores perform very close to the same if size is held equal. The BIP rads that Hardwarrior recommended are fairly cheap, not much more than a heatercore, and you wouldn't have to mod it.
 
Originally posted by: Elfear
Originally posted by: Greenman
Odd arguement, and I think I'm missing the point. In my truck, hot water from the engine passes through the heater core. The core is mounted in the cab, and has a large fan that blows air through it. A very simple loop that doesn't even have a method of stopping the water flow. When no heat is wanted the air flow is turned off.
All of which is very off topic.
To the O.P. If you choose to use a heater core they are easy to mod if you're handy with a torch, keep the core upright and full almost to the top with water, and you won't have a problem with melting the solder around nearby connections. Use a good quility flux (I like Laco) and flush it well when you're finished.
Click to expand...

If you don't feel comfortable with, or do not have, a torch, than your local radiator shop can easily do it in approx. 5-10 minutes.

Weapon over at Xtreme actually cuts the inlet/outlet tubes out of the heatercore completely and than taps the holes for a threaded barb. I just cut the bulged tip off of the inlet/outlet tubes and soldered two barbed fittings (one side is barbed and the other has an I.D. just larger than the heatercore tubes) on that I picked up from a plumbing store. They are slightly smaller than a true 1/2" barb but I don't think flow is impeded much. It turned out to be a lot easier that way.

From the reviews I've seen, radiators and heatercores perform very close to the same if size is held equal. The BIP rads that Hardwarrior recommended are fairly cheap, not much more than a heatercore, and you wouldn't have to mod it.
Click to expand...

Isn't the copper to thin to hold threads? It seems like you could tear a threaded fitting out with your hands.
Edit: Way off topic again, sorry.
 
That's what I thought too, but it seems to work quite well for the heatercore master (Weapon). Here is a thread detailing his mods with pics.
 
And he sells theese things? I should start doing this. Been sweating copper for thirty years now, modding a heater core is about as easy as it gets.
 
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