can anyone tell me how to convert a furnace from propane to natural gas?

Answer 1

first off the system you have has to be able to be converted or you will have to change gas valve....most of the time on a gas furnace all you have to do is change the orifice and the spring in the gas valve....

Answer 2

It really depends on the age. Many older models were designed to operate on either natural or propane. In which all you had to do was change the jets, and adjust the air combustion valve. Today, it is very probable that any end use of gas has a built in jet, and cannot be changed. If it is capable of being changed, then before you convert to propane, let their service person come out and check and change it before you buy the tank, purchase the gas, lay down new lines, etc... There is a way to drill out the jet to another size, but you better make sure the person is licensed and bonded. Also make sure you have a contract before you let them drill. This is expensive, and dangerous. I definitely would avoid it. I'd rather pay for a new furnace before building a new house or paying for a funeral!

Answer 3

elPauline,
First of all the Part is called an Orfus.Next, You can get hurt very bad if you do it wrong!!! Propane to natural , the orfus is bigger hole in it. It take more natural gas in heater than propane.
Now,in most cases, there is a little white bag tied to gas valve. In it you will find a little brass hex headed fitting.
an also a little metal tag, says natural gas.From here I wish you would call a service Tech guy.,I won,t tell you where it goes because if you don,t know then you really don,t need to do this yourself.
From experience with someone who tryed to fix that an a regulater , so they was told if you take the regulater off it would help. It did , when they called me, I changed the orfus an put a new regulater .But while they played maintance Man they had loosened the gas line. MY wife watched when it BLOW -UP an I run out on FIRE. It took 8month to heel!!!!!
So Please be sure YOU know what your doing.
I,m sure you need HELP. For GODS sacks BE real sure of what to do.....
GET HELP PLEASE!!

An think of love ones%
You can get hurt!!!

Answer 4

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Call a local HVAC company, tell them the brand of furnace, the model number and or serial number. The numbers are normally located inside the service door. They should be able to supply the proper orfice and make the change and test the furnace with the propane hooked up. Unless your trained to work with natural gas and propane, it is not a job for the do-it-yourself guy.

Answer 5

when it is set up for propane, a conversion kit is installed. they are usually small brass fittings installed into the gas line to reduce the flow. If you are unsure, call a repair tech and tell him what you need. it is normally a 20 min job at most. make sure to keep the conversion kit, in case you need to switch back, as they are reuseable and can be expensive to buy. each unit takes a different size according to brand.

Answer 6

You need the proper "oriface" installed is all..You will probably need someone to do it from gas company though for it is a furnace...the orafice itself probably isnt more than 10.00...it is the technician doing it that you keep your eye on money wise..try to get a excact price first and not just an estiimate

Answer 7

it is not orfus. change the ORIFICES and the spring in the gas valve. Not a do it yourself project though. The system needs to be reset up when converted, but that is how it is done.

Answer 8

Call a HVAC company.

If you need to ask, don't mess with gas. It can be deadl;y if not done properly.

Answer 9

it requires an adjustment to the gas valve. call a heating contractor,as a few $ saved is not worth a possible gas explosion.

Answer 10

you need to change the gas valve also maybe the pipeing it needs to be black pipe with malable fittings a chimney liner also may be needed call the gas compay they will give you your local requirments