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.
Some things you should check to make sure the refrigerator is in good working order is to make sure there are no leaks and to check for corrosion. These are bad signs.
Here are some things to check. Is the thermostat turned up? Sounds silly but I went into many homes it was turned down, or the switch on the thermostat was turned to off Is the pilot lit? This assumes you have a standing pilot furnace. If it is spark ignition, does the park cycle start. Check all fuses and breakers
If it floats on the water.
If the fan at the furnace is coming on but the outside unit does nothing, check the breaker first. If that's not it check the disconnect switch outside. Some of them have fuses in them that eventually fail. If it's not one of these two things, you in for a service call. I can think of about 15 things that could be the problem. Without the tools and experience to check them you could do some real damage to the A/C or yourself.
Gas furnace have several safeties installed for your protection. If for some reason one of these safeties are not opening or closing the furnace will not fire. Most likely the pressure switch, high limit or transformer may be faulty. If it is an older model check the thermocouple.
There are many things that one should keep in mind when buying fine jewelry. The biggest thing that one should keep in mind when buying jewelry is the price of gold because some stores cheat people on the price of gold.
When buying a used Acura, or any used car, look at the paint and make sure it matches. Check the tires, engine, miles, vehicle history and wear and tear of the vehicle. Make sure everything works appropriately.
Pros and cons of buying a Pontiac Torrent are that you need to weigh in the price, and the effectiveness of purchasing this. There are some sites that you can check to weigh these options.
A buyer should check the return policy of the store when buying used motorcycle parts. Used parts should come with some sort of guarantee for their performance.
This is a tricky question. Some homes may not have a gas line. Some cities may not allow gas furnaces and thus only electric is possible. Check with a local heating specialist for information.
Buying motives are the reasons you buy certain things. Some things are daily needs and staples such as food and utilities. Some buying is to be able to do a specific task. Some buy things to replace what is broken or stolen. There is entertainment and leisure type of buying, and luxury buying like when you buy expensive jewelry.
Depending on what you purchase, if it's a stove, I would check the heating elements and burners. For a refrigerator or freezer i would check for mold or mildew and the temperature inside and cleanliness. A dryer I would check for a proper seal on the door, I would also inspect the belt if it were visible.