Replace or repair 15y/o furnace?

[lorie]

We have a 15 year old Payne 90-percent condensing gas furnace. The secondary heat exchanger has gone out due to corrosion (being installed at an incorrect angle), and although the part is under warranty, it will cost us big bucks for the service to replace it. Our heater tech is pushing us to go ahead and buy a new furnace based on its age and the typical lifespan he's seen with these models, but that will run us about 3 times the cost of just replacing the heat exchanger. It seems like there's a good chance we could get more years out of it based on the general lifespan of furnaces quoted on the internets. Any suggestions?

Thanks!

 

[D_Hailsham]

I see you are in the USA. This is a UK based forum and we do things differently this side of the pond.

You may find more appropriate help if you use a US based forum, such as Heating Help.