This is another replacement furnace installation that we just completed. The furnace is a 95% high efficiency Aire-Flo made by Lennox International. In this video you can hear the heating system start - well, you can hardly hear it, actually, as these systems are very quiet when installed properly.
The Aire-Flo furnaces are very reliable as well. We have installed up to 12 of these per month for the past 2 1/2 years, and haven't had a single warranty issue yet.
If you're looking for a quality product from a well-known manufacturer (Lennox International), this product line is definitely worth your consideration.