The first option for a furnace service is a do-it-yourself service. If you are familiar with the basic ins and outs of a home furnace, you can assess the condition of your furnace on your own. You can check from the exterior to the interior of the furnace, and you can also perform personal maintenance like cleaning and furnace parts replacement.
However, if you are not familiar with furnace services, do not risk on doing it on your own because you might damage it unintentionally. You can hire furnace service facilities who are experts in this field. It may be a little costly but at least you can be sure that your home furnace is in good hands. It will be more expensive if you damage your furnace if your service it on your own without proper knowledge about it.
How Does a Furnace Work? — HVAC Repair & Troubleshooting Tips
Furnace not igniting, blowing cold air or running all the time? This video provides information on how a furnace works and offers troubleshooting tips to assist ...