Had mine replace a few years ago.
Did a ton of research as to which one to get. Settled on Lennox.
First year, already needed repair. Warranty fortunately.
Dealer recommended having him come out every fall to check and clean it.
If that is done, they would cover any parts labour for 10 yrs. $130 to do the maintenance.
He said the high efficiency furnaces are complex. They produce water and have electronics in them.
That $130 eats up most of the savings in gas. Kinda like my 4 stroke Yammy