What is benifit to V.S. motors?
Why should you run the furnace fan 100% of the time?
- better air quality because you are always filtering the air as it goes through the furnace filter
- more even temperatures from room to room in your house or even more even temp from one floor to another
What is down side of running fan 100% of time?
- cost more money if you don't have an ECM motor
- worse dehumidification in the summer time when cooling
So now, what does this new tax credit mean for the Stimulus Bill?
No body knows yet. (nice answer, I must be in congress) The way it currently reads accourding to Energy Star if you buy a qualifying furnace with ECM motor you will get a 30% tax credit with a max payout of $1500. That is a great deal if it turns out that way. Currently I have talked with multiple manufactures like Trane, Bryant, Amana, Goodman, and UPG(York) and they are all trying to get clarification from the IRS on this. So far it is looking like a good deal.
Ok, one more catch. There is one know fact but not talked about with having an ECM motor in your furnace. If you have a poorly installed duct system you may not save as much money as you should. Furnace duct systems are rated by Static Pressure. It is like your blood preasure, the higher it is the worse. If you have a poorly installed heating or cooling system this will easly double the design static pressure which will then drastically increase your electrical use. The Static Pressure should be tested regularly on your HVAC system, but unfortinatly only about 10-15% of heating contractors even know how to do it. It is easy, and doesn't cost much. A quality HVAC contractor will test static pressure every time they are servicing your system or installing a new one. There are many ways to save money in energy use, it just takes the right heating and cooling profesional to help you.