Technical Heater Blower Motor

I'm looking for a thinner blower motor for my heater unit so I can mount the unit a little closer to the firewall.. Anyone have any ideas?

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Maybe start with giving us some measurements of what you have there?

 

They do make muffin fans in 12v that are around 1-1/2" . I don't remember if the speed can be controlled, generally used for cooling electronics. https://www.pikusconcrete.com/3d-concrete-printing/

 

Have a look on the NAPA site they do a range of fan blower motors.

 

Could be worth looking at the heater motor in an Aisian small cat - some are usefully small.
Or; compact radiator fans come in a multitude of sizes, -down to about 6" or so. If they are too busy (noisey) connect though an ignition ballast resistor - knocks a lot of speed and noise off but still moves a lot of air.

 

I used a Spal 7" fan with a two speed switch from Ron Francis. I re-routed the hoses with 1/2' copper and them down the inside of my firewall.

 

^^ What heater core are you using?

 

The original Arvin. Copper and brass, luckily it tested good.

 

Does it run slow enough? Thanks

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There is quite a difference between slow and full speed. It is a roadster but slow works fine when it's not too cold, and I also installed an inline water shut off which can be partially closed to help control the amount of heat. On low it's pretty quite but on high it's a bit noisy and really puts out the heat.

 

https://www.millsupply.com/stepvan-...obs-motors-switches-cores-etc-/heater-motors/
https://www.apairinc.com/shopping/?ic=3872

 

I have no idea what it's from. Just pretty cool and thought it would work well in my 35 Cabriolet.

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I've used computer fans before.. Very thin and some are 12v.. Not as powerful as a big fan but quiet and adequate.... Could probably buy cheap at a computer repair shop....