help identify old wall-mounted gas heater

[tech4me]

I have this old (likely circa 1950) natural gas wall heater, and would like some help identifying the make and model. It has a thermocouple pilot which is activated by a push button at the bottom left. Please take a look at the picture and see if you recognize it. Thanks!

[catmanacman]

looks like a holly ,also look on the bottom plate under the gas valve to see if there is a data plate .on some of the older heaters you have to retrofit a new hydrauilc gas valve assembly if the original goes bad .

[tech4me]

Thanks! Does this heater look like it's venting outside? I can't tell if there's a flue going up (this is an old apartment building)

[catmanacman]

it should be venting to outside

[gravity]

I hope it's venting outside. Just because there's a pipe hooked to it, doesn't mean that it vents outdoors. Do you have any low level CO monitors?

http://stopcarbonmonoxide.com/

[tech4me]

I hope it's venting outside. Just because there's a pipe hooked to it, doesn't mean that it vents outdoors. Do you have any low level CO monitors?

http://stopcarbonmonoxide.com/

Thank you. The biggest issue is the smell which gets strongest on high setting. It could just be some organic matter burning out, but I've scheduled a free inspection with the energy company to make sure there's no gas leak or CO emission.

The burner flames are not uniformly blue -- there's a bit of yellow there.

Also, the edge of the metal "hood" on the standing pilot light seems to be glowing non-uniform yellow. I am not sure if this is OK, or maybe it just needs cleaning. Will wait for the inspection results.

[gravity]

The flame has no relationship to how a appliance is burning. I had one the other day. Pretty blue flame that was producing over 2000ppm CO. everything looked good but it was producing deadly amounts of CO. A pretty orange/yellow flame could be burning at 0PPM CO. The only way to figure out is to test...test....test.

[tech4me]

The flame has no relationship to how a appliance is burning. I had one the other day. Pretty blue flame that was producing over 2000ppm CO. everything looked good but it was producing deadly amounts of CO. A pretty orange/yellow flame could be burning at 0PPM CO. The only way to figure out is to test...test....test.

I had it checked out -- all is good. They said the smell is just the old deposits/dust/etc. that needs to burn off over a couple of days.