JTB
Active member
Recently installed Sunstar SIS75K propane heater in my 30'*40' barn. Fully insulated and holds a toasty 45F heat even with extremely low temperatures here in MI.
But I have an intermittent issue where the heater does not light. The draft inducing motor runs but no burn. Talked to the tech department and two suggestions -
- Check all the earths are bonded correctly
- gas pressure at inlet.
With respect to the latter, the Amerigas install measured 11.5 inches at the regulator feeding the black pipe into the barn. After the regulator I have about 15' of 1/2" black pipe upto the isolation valve feeding the flex pipe to the heater. The tech guy was surprised that I did not have a three stage regulator install. He would have expected the main regulator on the tank to drop tank pressure to around 10 PSI, then a regulator at the outside barn wall dropping the pressure to 2 PSI then a third regulator just before the flex pipe to drop pressure to inches of water.
What is the likely hood of only having 11.5 inches of pressure feeding my 15' of 1/2" black pipe causing the actual inlet pressure to fall to a lower than 10 inches and prevent the burner igniting?
Sorry for the long winded post, just trying to describe the problem clearly.
John
But I have an intermittent issue where the heater does not light. The draft inducing motor runs but no burn. Talked to the tech department and two suggestions -
- Check all the earths are bonded correctly
- gas pressure at inlet.
With respect to the latter, the Amerigas install measured 11.5 inches at the regulator feeding the black pipe into the barn. After the regulator I have about 15' of 1/2" black pipe upto the isolation valve feeding the flex pipe to the heater. The tech guy was surprised that I did not have a three stage regulator install. He would have expected the main regulator on the tank to drop tank pressure to around 10 PSI, then a regulator at the outside barn wall dropping the pressure to 2 PSI then a third regulator just before the flex pipe to drop pressure to inches of water.
What is the likely hood of only having 11.5 inches of pressure feeding my 15' of 1/2" black pipe causing the actual inlet pressure to fall to a lower than 10 inches and prevent the burner igniting?
Sorry for the long winded post, just trying to describe the problem clearly.
John