80% efficient furnaces: will vent up your existing chimney and would probably require installing a new chimney liner. What this means to you is for every $1.00 you spend on heating you get .80 cents and .20 cents goes up the chimney.
90% efficient furnaces: will vent with PVC pipe out the side of your house. In some cases we would have to run a chimney liner to vent owners water heater. The same holds true– 90% -.90 cents of heating, .10 cents up the chimney
95% efficient furnaces: .95 cents of heating .05 cents up the chimney.
99% efficient furnaces: .99 cents of heating .01 cent up the chimney. I have tried to simplify this for most homeowners– the other thing we run into– with the new efficiency’s you no longer need the amount of BTU’s. Most homes are 70,000- 90,000 BTU. There are so many other factors to figure into today's furnace market– we have variable speed furnaces, multi-speed furnaces, etc.
Our comfort advisors are here to answer your questions. Just call and as always estimates are free-no obligation.
*Note: Virtually all gas forced-air furnaces installed in this area from the 1950’s through the early 1980’s have AFUE’s of around 65%.
Note: Most manufacturers now require yearly maintenance of furnace and air conditioners to keep warranty’s in effect. They ask us for customer history records to confirm cleanings.
Why is this important to you? By yearly cleaning we test things like flame sensors or ignitors. If weak we replace or clean it, this will save a costly late night call. We check condensate drains– a likely cause of no heat-or you can keep it clean yourself, a common cause is bugs in the plastic tubing, causing it to no longer drain.