Delux Harrison Heater W/Defrost

Nice job restoring the heater! it looks great. 

R =6/10 = 3/5 ohm

I believe to halve the voltage you will want a 3/5 ohm resistor in series. I would buy a 1 ohm to slow it down a bit more so it's quieter. Plus 1 ohm resistors are cheap. P=VI so 12V x 5 amps = 60 watts. You'll want a 1 ohm resistor that will handle 60 watts. To spin faster, look for something closer to 3/5 ohms.

You have to figure out a spot to mount it. It will get very hot in operation. 

Hope this helps. 

Regards,

Dean 

This is the Deluxe heater with the original Jeep Harrison core installed.

This is the bottom of the original Harrison heater that will be installed onto the Deluxe heater when it is cleaned up, rust removed, primed, and painted. The Red dots are where I will be drilling the hole for the heater control flaps. I am waiting to pick up my grommets from Grainger before the holes are drilled. The red area is a 1/4 inch dot representing the 1/4 shaft for the vent that will come through.

This is the original Harrison heater internals.

I plan on using the deluxe heater, when installed, on my M38 arctic top. Here are some pictures of the vent setup currently installed on my hardtop.

DMR101

Thank you for this great input what do you think about using the Cole Hersee Heater switch.

This switch adds 3 OHM coil resistance.  This coupled with a VT6187 I am thinking might just do the trick. What are your thoughts?

The vent system is just ABS pipe and some older GM dash vents cut and glued into the ABS the end is just an old round RV vent glued into the end. It is one of type that twists close and open. I need to add a reducer on the down pipe to match the rubber flex hose that will come from the heater. I am also going to make a defrost for my summer windshield. The Arctic top is real easy due to the vertical windshield.

I am working on rust removal sanding and painting the new bottom. I have the part soaking in evaporust. It works fun just have to let it soak for a few days even takes the paint off. Then I his it with a light wire wheel wash it dry it and paint it with self etching primer. For my top coat I spray on the hammer forge rustolium. Seems to look nice, to me at least. 

I was reading Shadows post yesterday. He has the same heater setup and his says Willys and not Chevy. I am thinking of painting it onto the front aluminum plate so it looks like his heater. I like his setup and would love to see more pictures.

It works much better than the 3B factory defroster.

Some updates on my progress. I removed all the old paint and rust from my original Willys Harrison heater bottom. I have primed it and need to put the final coat of hammer forged paint.

it looks really good so far.