Energy Savings Tips


These types of thermostats reduce your energy bills and allow youEnergy Savings Tips
more control over your comfort.  They can potentially lower your
energy bills by 33% depending on the type of programmable
thermostat, and your preferences.  By lowering your temperature
settings before you go to work, sleep or vacation is a proven way to lower your utility
bill.  A programmable thermostat is exactly that, “programmable.”  You can program
(schedule) the thermostat to any temperature that you desire, and to the time that you wish.
The reduction of temperature will use less energy, and put you in more control by allowing
the programmable thermostat to do the work for you.  You would no longer have to keep
turning it up or down.

Most homes on a typical day will heat in 15 to 20 minutes.  A two-stage furnace lowers
the amount of gas used for the first 15 to 20 minutes for higher efficiency.  If heat is still
needed after that, the second stage starts and a standard (larger) amount of gas is used until
the desired temperature inside the house is reached.  On a really cold winter day, your
furnace will often use the second stage, but on those more frequent mild days, the first
stage (less gas) saves a lot.

Because a gas furnace works by injecting a flame into a metal heat exchanger that means
the metal heats up, and the fan then blows the heat of the metal and into your home.  If the
fan turns on too quickly, it will cool the metal prematurely, and lose efficiency.  If the fan
moves too much air across the metal, it will cool prematurely, and lose efficiency.  A
variable speed fan or multi-speed controls the amount of air blowing past the heat
exchanger as not to cool it faster then it can heat, thus creating more efficiency.  So during
the first stage of heating (lower gas output), the multi-speed or variable speed fan lowers
the volume of air.  During the second stage of heat, the multi-speed or variable speed fan
increases to a higher(normal) volume of air.

The variable speed fan is the best option as it does a gradual increase of air flow from the
start.  It also creates a more even flow of air throughout your home.  There is no gradual
increase of air flow with multi-speed fan.  A multi-speed fan will jump straight into a
constant rate of air flow for first stage heat, and straight into the next higher level of air
flow for the second stage of heat.

Your everyday gas furnace is rated by the acronym, “A.F.U.E.”  AFUE stands for: Annual
Fuel Utilization Efficiency.  This is the amount of energy utilized and not wasted per every
U.S. Dollar.  The AFUE ratings typically start at 80%, to 90%, to 93% and above.  Let’s
use 80% as an example.  80% means that 80 cents of every U.S. Dollar is used to heat your
home and the remaining 20% or 20 cents of heat is vented outside by the draft induction
motor.  On a 90% AFUE rated furnace, only 10 cents is wasted instead of 20.  When you
install a high efficiency gas furnace that is equipped with a secondary heat exchanger, it is
going to take the wasted, unfriendly, carbon monoxide heated air that is destined to go out
the draft induction motor flue and recycle it through the secondary heat exchanger. This is
to pull as much heat out of the hot, gaseous, by-product filled air as possible before
releasing it to the outdoors.

Having a multi-speed or variable speed draft induction motor is going to help the
secondary heat exchanger to be more efficient.  A multi-speed or variable speed draft
induction motor works in conjunction with the two stages of heat(Reference Tip #2), and
the secondary heat exchanger by not venting it before it has a chance to be fully recycled.

If you want the most for your money, get a 95% AFUE rated gas furnace with all of the
above (Reference Tips #1; #2; #3).  It seems the cost of replacement of a 95% compared
to an 80% is a lot now, but what is not seen is the amount of money saved over the next 12
to 15 years via your utility bill.  Over time, you recoup the extra you spent, and then the
rest is saved in money not spent in utility bills.  It’s nice not having to pay a huge gas bill
for the next 12 to 15 years.