We're having a new house built and the standard furnace is the Lennox G43UP (92.1% 1 stage/ standard blower). What's a good way to determine whether we should upgrade to the Lennox G61MPV (94.6% 2 stage /variable blower)?
I understand it's only slightly more efficient - so for substantial upgrade for each furnace it doesn't seem like the cost benefit is there? We would also get a Honeywell VisionPro-IAQ thermostat and a 5" air cleaner - if we upgraded to G61... With the G43 - we'd get the Honeywell TH6000 and a 1" air cleaner.
I'm guessing they are really charging a lot for this upgrade - does anyone have comments on what should be the pricing difference between these 2 models?
If I stay with the G43 - should I upgrade to the VisionPro-IAQ thermostat? We will have 3 zones (2 furnaces) - so it seems like that would be nice to have only one place to set the programs - but again the upgrade price seems like a lot...
Any comments/suggestions/thoughts on costs/DIY ideas are appreciated!