How do I set the air pressure in my pressure tank? The air pressure in the tank should be set according to the low cut-in point of the pressure switch. Before setting the pressure, it is important to know what the low pressure cut-in is. There are two ways to determine this. The first is to find the pressure rating…
Can I Change the Size or Type of My Oil Nozzle? In general, the oil nozzle recommended by the heater manufacturer should be used. This can usually be found on a tag on the heater. The nozzle is rated by GPH (gallons per hour of fuel use), spray angle and spray pattern. For example, a…
Delavan Adaptrap When oil continues to drip or ooze after the burner shuts off, try replacing the standard nozzle adapter with a Delavan Adaptrap. The Adaptrap also helps eliminate erratic spray and flame flutter on burner shut-off due to air in the oil line. Any time you experience air in the oil line it is…
Can I Use PVC Pipe for Air Lines? PVC pipe should never be used for pressurized air lines. Never. You might know someone who has PVC air lines in their garage or workshop but it is an accident waiting to happen. Bump it with a tool or object and it can shatter we tremendous…
Delavan Nozzle Line Filter When contaminated oil nozzles are about to drive you over the edge, try adding an inexpensive line filter to your system. The Delavan nozzle line filter provides four times the straining area and removes particles one-half the size as a standard nozzle strainer. The 1/8″ filter is easily installed in the…
Noisy Oil Pump Operation One cause for a noisy pump is a misaligned oil burner coupling. Try loosening the mounting screws slightly and shift the pump position until the noise is eliminated. Retighten screws. Air in the inlet line can also cause noise. Check all fittings and connections for leaks. Tighten or replace any leaky…
Suntec Oil Pump Strainers Checking the strainer in your fuel pump should be part of the routine annual maintenance of your oil furnace or boiler. It should also be checked if you are not getting a good oil flow at the nozzle or you have pulsating pressure. To check the strainer, remove the four screws…
How high above the roof does my chimney have to be? The following information is for the typical chimney installation. Always check your local codes. Table from Metal-Fab, Inc. Roof Pitch Minimum Height for gas chimneys, B-vent Flat to 7/12 (305 mm) 1.0 feet Over 7/12 to 8/12 (451 mm) 1.5 feet Over 8/12 to…
The basic answer is: “Don’t do it”. Our flex pipe comes in 100 and 250 foot rolls. The size of the roll can easily be six feet in diameter. That means it cannot ship via UPS or US mail. The only way to ship it is freight, and the cost starts around $100 and goes up from…
Oil Nozzle Care and Tips Oil nozzles are designed to do an accurate job of atomizing and metering fuel oil in the spray pattern of your burner. Keep nozzles in their original containers. Handle the nozzle by the hex flats and avoid touching the strainer. Use clean tools. We recommend using a Delavan nozzle changer…
