answersLogoWhite

0


Best Answer

If you see two oil lines going to your oil furnace, most likely one is a supply line and the other is the return line to the oil tank. When it is necessary to lift oil to the burner, a return line should be connected between the fuel pump and tank. This requires insertion of the bypass plug into the fuel pump.

User Avatar

Wiki User

15y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: When would an oil furnace use 2 supply lines?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Natural Sciences

Is it better to turn the furnace off or leave it on?

Obviously a furnace - or indeed any other appliance - will use no energy at all if it is completely switched off. If you don't want to spend any money on heat energy then of course it is "better " to turn the furnace off. It depends what you mean by "leave it on": even if you leave the electricity and gas on, (or oil if it's an oil burner), if the temperature of the room or building is high enough to make the air-termperature thermostat switch the furnace's burners off, the furnace won't actually be running and consuming very much energy. All the furnace would consume in that condition is a few Watts of electrical power to supply its control circuit and maybe a few Watts more to drive a water circulating pump for the radiators, if that is how your system works. Of course you could turn the furnace's main control switch "off" so that the furnace will stay off even when the air temperature falls enough to cause the control thermostat to switch over to put the furnace's burners on... Then you would save a few Watts of energy but would lose the convenience of having the furnace heat your home and water automatically. Instead you would have to switch the furnace on yourself every time you wanted some heat. So, do you want "convenience" or "inconvenience"? It's up to you to decide...


What is the chemical composition of furnace oil?

Furnace oil is not one single species of petrochemical. The hydrocarbon fuel is a mixture of compounds in the range of 14 to 20 carbon atoms. The chemical formula for some of the more common molecules of heating oil might be C14H30, C15H32, C16H34, C17H36, C18H38, C19H40, or C20H42.


Can you convert an oil burning furnace to natural gas furnace?

Oil furnaces cannot be converted to gas - LP or natural - as they have totally different burners and have very different internal construction.


Does an electric furnace need an outside air intake?

No, an electric furnace does not need an outside air intake. For oil and gas furnaces an air supply is needed. It is called combustion air. It is needed for complete combustion of the fuel and not use the heated air that is in the house. Today's homes are built as a sealed unit to stop infiltration air from leaking in and costing the home owner more money to heat the home. Many installations use a motorized damper that cuts off the air supply when the furnace is not operating. This prevents a draft through the vent from the outside of the house when other extracting devices are operating.


What can be used as substitute for furnace oil?

Many petrochemical products; the type depend on your specific application.

Related questions

Can shark bite plumbing fittings be used for oil supply line for an oil furnace?

no


How do you convert 1 metric ton of furnace oil to 1 liter of furnace oil?

you would convert it buy using specific gravity. the specific gravity of fuel oil is 0.893 at 60F. so that said 1 liter of furnace oil would weigh 893g. one metric tonne of furnace oil would equal roughly 1120 liters


How to convert an oil furnace to an electric furnace?

How can you covert an oil furnace to an electric furnace


Oil Furnace Installation ?

form_title= Oil Furnace Installation form_header= Heat up your home with an oil furnace. Do you need an old furnace removed? *= () Yes () No Do you currently have an oil furnace?*= () Yes () No How old is your home?*= _ [50]


Which range of density meter should you use for furnace oil?

Furnace oil is mainly measured in centistokes (cST). It could vary frm 0-1000 cSt. It basically means the quality of furnace oil used in your application process. For eg. In Furnace oil boiler its mostly recommended at 125 cST grade to be used. The better the furnace oil the better its is for your equipment giving less maintenance cost and saving energy in process. There are other factors like pour point, flash point, etc which are also major factors in furnace oil and would be available with your furnace oil supplier.


Can you use jet fuel in a home heat oil furnaces?

It would depend on the type of burner in your oil furnace and the type of jet fuel. I recommend that you contact the manufacturer of your furnace first.


Which fuel is more efficient in a forced air furnace heating oil or kerosene?

The kerosene is a lighter oil. I think you would get more BTUs out of the heating oil. Just make sure that you are using the right fuel for the furnace that you have. Most now days would take heating oil.


Can you mix kerosene and home heating oil in an oil furnace?

Kerosene and home heating oil can be mixed in a oil furnace. Kerosene is thinner than heating oil. Mixed together will make the furnace burn cleaner.


When the oil supply is above the oil burner pump and the pump ans supply would normally be a?

l


How can you re-ignite an oil furnace?

Don't try to do it yourself. Be safe and try to get a furnace technician to help reignite the oil/diesel furnace from a company that specialises in furnace repair instead.


What are some things to check for when buying a used oil furnace?

The most important thing to check when buying a used oil furnace is does it still work. Check to see the condition it is in, check all wires, tubes, etc. The best bet would have a furnace man check it as he would know what to look for.


What is technology of oil fired furnace?

An oil fired furnace works by using oil and a flame. The oil is sent through a tube to the burner area of the furnace and when the oil is ignited with a lighter, the flame can be adjusted according to how much heat is necessary.