Among my quotes, I noticed that one was for a low NOx unit. Living in NJ, I wasn't aware of any requirements for them.
Was wondering what if any downside there might be in using one vs. a standard furnace. Are there more stringent maintenance requirements or are they any more prone to failure and more likely to need repairs?
I remember when automobile pollution controls were first implemented, cars became less fuel efficient (mpg) and seemed to suffer (pickup). Any corollation there?