Results 1 to 1 of 1
Thread: BRYANT 312AAV VS AMANA AMV8
11-21-2006, 02:41 PM #1Regular Guest
- Join Date
- Sep 2001
- Seattle WA
Ive narrowed my quotes down to two possibilities: Im considering either a Bryant 312AAV two stage two speed blower OR an AMANA AMV8 two stage with variable speed blower downflow furnaces. The AMANA seems to have a better build quality with the Stainless Steel heat exchanger & Variable speed blower & a better warranty. Both are 80% furnaces. What appeals to me about the Bryant is that I have been told it is very quiet more quiet than most other furnaces in this class. My interest in quiet is that the furnace in my home shares a wall with my living room and main return air grill is quit literally just on the other side of the wall from the furnace- it is noticeably loud in the living room when the furnace is running. Ive also been told the Bryant has a more sophisticated control of the blower with its adaptive something feature IE microprocessor. Finally, my other issue concerns the AMANAs variable speed I realize it is a comfort issue but is it not true that the variable speed part concerns just ramping from one of two speeds to the other in the heating mode ? If that is the case, who cares about all the cost, complexity & potential reliability of a sophisticated system like that just to avoid stepping from one speed to the next ? Are all these variable speed motor controllers & motors made by the same supplier in these variable speed furnaces. Any idea as to the cost of a dead motor controller OR variable speed motor? Im assuming the motors are induction motors If they are NOT induction motors then you have commutated DC motors with the limited life of commutator brushes. I would think the relatively new introduction of these sophisticated motor controllers into these new furnaces there would be little reliability data and therefore the jury is still out on these.
Thank you in advance Regards