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around 1,700 square foot
near the Vancouver area (BC), moderate climate

So should I go with a 2 stage 60,000 furnace?

No idea.

no idea

One contractor offered a 2 stage 80,000 gas furnace and when I asked him (the other quotations I have are for a 2 stage 60,000 gas furnace) why he said: "The furnace that we are going to install will...

Called Carrier - yes, this is how I spend the day after Christmas :) - and they confirmed that I would need the control to make the furnace ‘modulate’. The 1st CSR could not answer to my question so...

Thank you for the answers.

I got offers from a other contractors and all of the furnaces were 2 stage (Trane, American Standard, KeepRite). I was surprised that the modulating Carrier 59MN7A… was...

I am looking at installing a Carrier furnace: 59MN7A060V17-14.

The product booklet says ‘Fully Modulating Gas Valve — When paired with the InfinityR control, this furnace improves comfort by...