Gas Furnace / AC
GreenTech’s go to system, the best solution for a home that has a gas line in it, is a high-efficiency gas furnace coupled with a 15/16 SEER AC.
Brand wise I’ve done all the main names you’ve heard of over the last couple of decades but I’ve been with the Trane Corp (American Standard) since the early 1990’s and it has proven itself to be the best option.
Furnace wise, me and every other hvac guy who knows what good advice is, will tell you to stick with the “2 stage, Variable Speed Fan Drive, 97% AFUE, Gas Furnace”. The single stage furnaces are too beastly in their full blast operation and the modulating furnaces are pointless and problematic. Get the one in the middle and call it good. The version I use is green, it's reliable, it lives a long long life, it's quieter, it makes the house feel more even, it cleans the air in the house 24/7, and it uses a fraction of electricity to do the job.
AC wise, I like the 15 SEER2 (formally the 16 SEER tier) They are energy efficient enough to give us some guilt-free air conditioning but not so complex and expensive as some of the higher tiers that really are not justified in our climate. Granted the climate seems to be a real charmer these last few summers so maybe my stance on which SEER you need will change but for now I’m leaning into the 15/16 SEER as the sweet spot for AC’s. A unit that lives longer than a unit with a slightly higher rating is actually better for the planet and energy use than one that dies early. This wisdom applies to much of the HVAC debates that go on. Long life is key to saving energy too.
I could do a long page about this, that and the other, regarding why I stick to the units I offer but it would be a tough and boring read. The short version is, I like reliable, adaptable, simple, quiet, energy-efficient stuff that lives long lives. I choose stuff that I don't have to spend all my time fixing down the road.
All our ducted systems like this come with a high-end dust, allergy and smoke filter. This big housing allows for the filter to live a very long life and these filters are now available everywhere. Shoddy filters and leaky filter racks are the cause of probably 80% to 90% of all repairs or unhappy customers. The right filter housing and good filter stewardship by you will make your Gas Furnace and AC system a hands off, no techs ever needed, long life, stress-free HVAC dream system. It's not even close...