Replace furnace while doing AC and coil?
So I am going ahead and replacing a condenser and a coil, and my furnace is about 20 years old but still working fine. Should I bite the bullet and do the furnace as well, or save a few grand and hold off on doing the furnace until I have to? I have posted before, this property is a rental likely to be sold within a few years. Will I get hit on home inspection bc of a 25 year old furnace and should I just go ahead and do it now? Will a furnace put in well today basically still be new in 5 years? Is there labor cost synergy substantial enough to merit me paying that money out now? Thanks