Question about Dayton G73 Utility Heater

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Dayton mod#3e219b gas heater

Unit runs ok with top cowling off, but with cowling on unit dies out with in sceconds. Unit has a new air pump installed and a new ignitor. Hopefuly you can help us.

Thanks Dale

I have the same type problome with the model 3VE50A 125,000 BTU if the upper cowlen is off it runs fine but as soon as you put the cover on it shuts down all of the filters have been cleaned per the manual and i have installed all new fuel lines ,air lines and have adjusted the pump pressure to the sujested 5 PSI

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In the original manual for 3E219B it does say the pressure shoule be 5psi. If you would like I can email you a copy of the mail just email me at As for the 3VE50A you can go to and click on the model and find the correct pressure for that heater. There is also a place to order parts. Check to be sure you have no air leaks in the filter cover or air lines or fittings, clean filters and then adjust your pressure.

Posted on Jan 21, 2012

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Who told you air pump is supposed to be 5 psi? at the desatech site in their PDF troubleshooting guide air supposed to be 3.0-3.5 psi.

Posted on Dec 27, 2007


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