"George E. Cawthon" wrote:


The
more efficient furnace will likely be more noisy.

????

Based on what? I'm going to have to see some info to support that, many
higher efficiency units have variable speed blowers that ramp to speed,
reducing blower noise etc. Just don't install a Lennox Pulse if you're
concerned with noise, we're not talking Atta-Boy's here! ;-)

- Robert