Stock Heater?

[rumble48]

When I purchased my 48 p15 it had what I take to be an aftermarket heater.....  an MP 356 with defrost connections. The previous owner gave me a Comfort Master model 53, and said it was a stock heater.

 

After some research I've found the M53/M54 are part of an optional dual heater system. my original thought was to use the original heater (M53) to replace the aftermarket unit.  after looking at it, looks like I should be using an M54 which would have the air output on the left putting it closer to the center of the car. Also I have not seen one with defrost connections, so I need to figure out what that looks like as well.

 

Can someone jump in here and clear up which heater is the correct one in a single heater config, and maybe a pic of the defrost connections at the heater.

 

Craig

[garbagestate 44]

Not sure about the application for a p15 but my 47 Chrysler Windsor with a single comfort master heater like the one you have pictured, has the door on the same side as yours and is factory mounted on the passenger side. 

[bamfordsgarage]

Photo shows two original factory heaters in my '47 Canadian D25 which is similar/identical to the American P15 in most respects.

 

The heater under the dash at right is original to this car and you can see the defroster air take-off at the upper right. That rather convoluted path and ribbed flex hose makes for a very anemic air flow.

 

We added the second heater on the transmission tunnel a couple years ago prior to a run up to the arctic — it serves to heat the driving compartment and the original heater is devoted to defrost only. The heater hoses split and reunite at Tees just ahead of the firewall, and a separate switch is used to control the second heater fan independently.

[Don Coatney]

Heaters were a add on option on P-15's. Often times a dealer installed option. If the heater was factory installed it should have been a comfort master model 53 at a cost of $40.25. This is for a right side heater only.

[Young Ed]

Bamsfords heater is an example of the lowest level optional heater. The next step up is your model 53 which is a fresh air heater and goes on the passenger side. The defrost hooks up just like Bamsfords picture shows. The 54 goes on the drivers side and is a heater only. No defrost option. For my dual heaters there are also special kick panels that attach to the heaters and form a heater outlet right at the door opening. I am not sure if you only had 1 fresh air heater if you still had that special duct.