Average is around 15 years although some may last as much as 20 years. Of course some last as little as 10 years. Usually the first things to fail are the parts associated with the blower. Anything that can wear out the motor quicker will shorten the life of the furnace such as: high humidity, vibration, inconsistent power, power surges, water leakage, very gritty air.
it depends on how well maintaned it is should be inspected every year ,please do not go to one hour furnace they will tell you you need a knew one when you don't
an electric furnace runs off of 208/230 Volts while a typical gas furnace runs off of 120 also a gas furnace will have a valve for the gas relay where the gas enters the furnace.
15 years
You can find a schematic for a gas furnace on the website, Uncionradio.
You should not run gas from the furnace to any appliances.
an average cost would be around 2500 for materials. That's a 14 seer straight A/C with a 80% gas furnace and A-coil
There are many places to find gas furnace prices. One can look on sites like Furnace Price Guides, Century Gas Furnace, and Consumer Reports. One can also find gas furnace prices by going to a local heating supply store.
A gas furnace is a furnace that operates to keep your house warm with the use of gas. Gas furnaces are very energy efficient furnaces, and are the most common furnaces used in North America.
# Why doe the gas furnace blow black smoke?
One could find information on gas furnace troubleshooting online at Ask. Hvac for beginners is also a great place to look. One could also contact their local gas furnace dealer and/or repairer for gas furnace troubleshooting.
Go with gas.
To hook a propane gas line to a gas furnace, you will need to connect the gas line to the furnace using approved fittings or connectors. It is important to ensure that the gas line is correctly sized for the furnace's gas requirements and that all connections are secure and leak-proof. It is advisable to hire a professional to install the gas line to avoid any safety hazards.