What You Guys Think About This Heater Box Enhancement?

[Clatter]

Heater boxes really limit the size/power of motor you can build.
There comes a point where you will choke and strangle a motor, stacking up heat into the heads..

The bigger headers can be put into heater box shells,
But they sure don't give off a whole bunch of heat like those cast aluminum finned heat sink dealiebobbers inside a factory heater box.

So,
Here's an idea I wanted to bounce offa y'all..

Think welding fins onto the J-tubes inside some heater shells will actually help anything?
Maybe this will just insulate the heat in the tubes from airflow?

(Yes, Alice, these are type 4 pre-heaters, but the theory is the same )

Helping or hindering the generation of heat into the cabin??
I was going to weld a whole passel of these into there..

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What’s That Noise?!?

[busdaddy]

That's gotta be better than just smooth pipes, any way you increase the surface area will increase the heat output.

Below is a few different ways it's done on aircraft, the short round muffler @ 9:00 is covered with small finned studs, the crossover tube @12:30 has spiral strips that force the air to take it's time and get to all the sides of the pipe, both are covered by a thin aluminum or SS shell when installed, food for thought on your project.

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[esde]

[theKbStockpiler]

I figured out with equal lenght headers on a 5.0 that the more suface area the more heat transfer so a bunch of small diameter pipes instead of one big one would work better.
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My beetle is not competing with your beetle. I have the yellow beetle in my town. There is a red one, a green one ......
Use all safety devices including a mask.

[Howard 111]

The gas heaters in the VW Thing are the ultimate heater. It will make you roll the windows down even on the coldest day.
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1973 Karmann Ghia
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[theKbStockpiler]

Too bad you couldn't design a negative scoop for it so it would recirculate it's self before going to the cabin.
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My beetle is not competing with your beetle. I have the yellow beetle in my town. There is a red one, a green one ......
Use all safety devices including a mask.

[nextgen]

First the smooth T-4 pipes make great header for upright conversions.
The other version has the really massive heavy cast fins great for heat but hell to remove if you want them as headers and no heat.

OK My off the wall examples.

My first home had heavy case iron radiators

My second home had hot water base board

My new home has Forced air.

Nothing is like heavy thick metal, like my radiators, they also hold the heat so there is a slow transition from hot to cold.

Your sheet metal is better and the thicker steel is even better.

The advantages are you can always remove the additions and make them back to headers.

BTY I HATE FORCE AIR- HEAT!!

Oh and Gas Heater-- Overkill in a bug or ghia-- buses fine. Ya you have to open the windows, too hot.

Dangerous and I got exhaust fumes coming in.

Sold it !!!!!
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