You need a load calc for sure.

Certainly not a 120 KBTU+ high eff furnace. No more than a 100 K

At the very least I would want a 2 stg var speed 95+% eff furnace properly sized. Modulating furnaces are now top of line.

Unclear about the AmStd quote-no model numbers.

The Rheem two stage var speed furnaces quoted are nice. They will require a two stage thermostat. Don't care for those low end South of the Border AC condensers that Rheem quoted.

I wouldn't have Lennox...my prejudice up front.

IMO

I like the equipment in Quote 1. The price is good if it is the 2-stage 24ANB7 condenser. The sizes are too big. The price should come down with the proper sizing.

As stated above you need a load calculation.

Thank you everyone.
The AS model is Gold XI model

Would not to see all model numbers on the AmStd quote if you expect an informed opinion..

Not the platinum, gold, silver nonsense.

IMO

I can tell you from personal experience that the Carrier Infinity products are excellent. We went with a system 3 years ago and though they are a higher end product, they have great features. We have been very happy. You may also want to look at their Infinity Greenspeed product, there are some great economic savings to a heat pump and the Greenspeed units are 21 seer which is super efficient. Either way Carrier Infinity is top of the line.