Maintaining a furnace is simple, does not require much time and can produce significant benefits for the owner. The main reason for the failure of many HVAC systems is the lack of proper maintenance. Poor upkeep of home heating systems will result in operational inefficiencies and higher associated costs on a continual basis, unless the issue is addressed.
Whenever winter is on its way it is usually best to check your furnace for efficiency and safety. There are some straightforward maintenance routines that can be followed to reduce costs and prevent problems with your heating system. Following these steps will also help with quality of air in the home. Even though the option of scheduling a check-up with a furnace servicing company still remains, some simple tasks exist which you could perform by yourself.
It is of the utmost importance that power to the furnace is completely turned off before working on it to ensure that a motor does not start while you are fiddling with the parts. You can normally swap a filter without switching off the fuel supply, but for all other maintenance it is best to be cautious and turn off the gas or oil supply. It is also advised that you know how relight the pilot light before shutting the power off, so that it can be turned back on again.
Exchanging a standard thermostat for a programmable digital thermostat will save energy in almost any home heating system. This is because digital thermostats have the ability to adjust the temperature of your home automatically, helping to keep the house comfortable when it is occupied and reduce energy wastage when it is not.
For any forced-air furnace, the air filter should be changed monthly at the very least. A quality programmable thermostat will alert you when the filter needs to be replaced. Even though some technicians may recommend fiberglass filters or mid-range filters which catch smaller particles and are relatively inexpensive, your furnace should continue to perform adequately if the filters are changed on a regular basis. When selecting which filter to use, it makes sense to base your decision on how sensitive you are to air-borne particles. Dust still builds up on the blades of the blower even with regular filter changes. To combat this you should vacuum the accessible areas of the furnace every few months to stop such particles from accumulating.
The blower and motor shafts of older natural gas or propane furnaces should be oiled on an annual basis. A couple drops of 20-weight oil should suffice. The majority of new furnace models have bearings that are sealed so do not require oiling.
A cracked or fraying V-belt connected to the electric motor indicates that the part will need to be replaced. However, this is only relevant if your furnace blower is actually powered by a V-belt. It is also a good idea to check the motor pulleys as well as the blower are properly aligned, even if there does not appear to be a problem with the belt. Misalignment of these parts will cause the belt to wear much faster, and produce a lot more noise while the furnace is operating. Realignment is quite straightforward and can be achieved by loosening the screws that keep the motor in place and then aligning the pulleys using a metal carpenter’s square. Remember to tighten the screws when this is done.
The furnace you initially buy will have a significant bearing on associated long term operating costs. For this reason, it is best to base your purchasing decision on furnace efficiency and maintenance susceptibility as opposed to price. This is because cheap residential furnace prices on face-value often do not illustrate the disadvantages that they may come with, such as poor reliability and performance. High efficiency furnaces, on the other hand, are normally presented in the form of a discount or sales offer. Although installation costs may be higher than lower efficiency alternatives, they tend to have much better long term benefits in the reduction of energy bills and in the reliability of performance.
It is possible for the oil filter to be replaced to allow clean fuel to continue flowing to your oil-burning furnace. Although this is not necessary on every oil furnace model it is worth looking through the owner’s manual to see if it contains instructions about bleeding air out of the fuel line. Regularly inspecting the fuel lines and connections for leaks is a good safety precaution and can also help increase the efficiency of your furnace system.
Hot water systems require the radiators to be bled annually. To do this, while the system is running, simply turn the bleeder valve to the open position on every radiator in the home until water comes out without splashing. At this point, you should be prepared to catch the water, making sure to take care as it is very hot. Different radiators will often have varied types of bleeder valves. Some will have valves that open with a knob or special key, while others will require a screwdriver to perform this function.
For all types of furnaces, it is imperative that outside vents and chimneys are not blocked in any way, shape or form. Apart from increasing your heating bills with every cycle, such blockages pose a very real hazard to human health. Flues that leak can cause carbon monoxide poisoning as well as fire hazards, so always be aware for any appearing cracks or separating joints in your home heating system.
Kay Homes is a professional writer whose literature covers a wide range of categorically interesting topics for varied and astute audiences.
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