Recent content by Plumber338

You're very welcome, but the real credit goes to The Cobbler in a previous post. Glad it was an easy fix!

Shouldn't it be counterclockwise to on? Assuming this is similar to your valve.

test

Is there some reason you can't use a Modine concentric vent? It looks like you have the necessary clearances to utilities, windows and the adjoining structure. It's in the HDS manual 6-584.13 pages 10-11.

Your manifold pressure (after the valve) is 0" WC??? It should be 10" if you are between sea level-2000 foot elevation, 8.5 if between 2000-4500. as toyotadriver said:

What arrowhead said. These heaters are designed for a 45 degree temperature rise across them. If incoming air temperature is 20 outgoing will be 65. Also at 80% efficiency you only get 40K of heat from a 50K input. Those flames look pretty close to what I have in my Modine unit.