"Walter R." wrote in message
...
I had a new 70,000 BTU Rheem furnace installed in my house. The airflow
from
the registers is rather noisy: You can hear the air rushing through the
registers, not exactly whisper-quiet!

The temperature differential between return duct and heat register is 30
degrees (from 70F to 98F). Is this a normal differential or can the fan
speed be reduced, resulting in a higher temperature at he registers?

Thanks

--
Walter
www.rationality.net


there are to many variables that are not stated in your post to even
attempt a answer.