This group of experts and Consumer Reports agree that
high-efficiency gas furnaces are more expensive to maintain.
Are the additional repair calls a result of:
(A) poor design by the manufacturers, or
(B) poor installations by contractors, or
(C) incompetence of repair techs?
I'd like to add (D) Could be A-B-C but the real problem is that
thehomeowner is not maintaining the equipment and changing or cleaning
filters as per owner's manual guidelines.
Well, the cost of maintenance isn't more expensive, it is the cost of
repair. If maintained properly, this cost is offset.
There are simply more moving parts that are more advanced. With
technology comes greatly greater responsibility. The circuit boards
themselves liken to a computer motherboard but the relays and chips
are not changeable as they are on some motherboards. The variable
speed motor provides great efficiency but they themselves are
expensive...but they should last a long time if regular maintenance of
furnace is performed, and that furnace is of proper size and
application and the company who installed them actually reads the
installation and set up instructions. The gas valves are now two
In short, yes, if you have a problem, they cost more. They take more
time to troubleshoot and the parts are more expensive to their counter
part in an 80% furnace...because they are more advanced. Yes, some
manufactures have poor design, but that is designs for servicing not
life and performance of the unit (I swear some of these manufactures
install razor blades in there).
If proper application, properly sized, properly installed and
maintained, the energy savings will offset your repairs.
Change the oil ever? Have the brakes looked at? Higher cost for that
Some people people "don't believe in maintenance". Personally I like
They stimulate the economy by wearing their stuff out faster.
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