Your Heating and Air Conditioning Has Unused Capacity
In today's rough economy sufficient reason for utility costs rising, everyone wants to save money. Most people are paying over they should for utility costs on a monthly basis because their heating/air conditioning system isn't be utilized to its capacity. Your hvac system includes the ductwork and filter.
Most of the people think if they have 97% efficient furnace and newer air-con system that they are doing everything they could to save money on heating & cooling their property. In most homes as a result of poor duct design the systems are operating well below a 60% of rated capacity. Quite often when a high efficient air cooling system is installed with a poorly designed duct system the efficiency becomes worse. This happens because the high efficient air-con coils are larger and restrict air flow more than a smaller coil.
Studies preformed by National Comfort Institute and the Department of Energy have found that most homes with forced air heating & cooling systems have 40% or better of unused capacity.
This is simply not hard to understand if you think about this. If you have a forced air heating & cooling system you are paying to condition air.
Unused capacity is the amount of air your heating & cooling is capable of conditioning but can't because it's not there to condition. Every minute your burners are on within your furnace or ac compressor is running any unused capacity is simply wasted energy.
One way to think about this: You have a tub you will need to hand fill with water.
You wish to fill the tub with 50 gallons of water: You have a 1 gallon bucket. but rather than filling the bucket having a gallon water and dumping 50 times. You fill with ½ gallon water and dump it 100 times.Your capacity was 1 gallon however, you only used ½ gallon with the bucket which took more energy to fill the tub.
A forced air comfort system (Furnace and/or Ac System) is doing the same thing if it is not have the proper volume of air through the system. Remember you're paying to conditioning air. It is precisely what you want it to accomplish.
Very few people and this includes most of Heating, Cooling professionals don't consider it as a system.
They look advertising online as a Box (Furnace or Outside Condensing Unit for Air cooling. (This is not knocking any contractors; unfortunately itrrrs this that we are taught. Almost all of the training in the Heating & Cooling Industry arises from Furnace and Ac Manufacturers and their job is always to sell equipment not maintain existing equipment or repair inadequate ductwork.)
Every time a furnace and air-con system is installed and airflow just isn't addressed your odds of winning the lottery are better than the actual results of that new Super High Efficient Equipment delivering everything you were told it was going to do
You may stretch your budget but to really cut costs the equipment needs to run less as well as the best way for this to happen is good for it to be sized properly, (Most products are oversized) we still believe bigger is best. Your equipment must be as small as possible. Meeting a correctly preformed load calculation for your household or business after which it needs to be used to capacity. Sorry this can be getting off topic.
In all of that few some tips i would like you come away with are:
You don't have just a furnace and/or air conditioner you have a Comfort System.
Your Comfort System's Job is always to condition air. (Throughout the year)
If you have never had an airflow analysis it might be a wise investment. You will probably find that some duct renovation would be a very good investment.