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If I had a variable speed blower I'd have more confidence closing registers without fear of creating too much pressure in the ducting.
I'll see about half-closing the upstairs registers and monitor temp/humidity downstairs.
I am curious to run some numbers to see cost of heating from an HVAC vs natural gas. My baseline understanding is that resistance heating is 3x more expensive than NG, but heatpumps are 3x more efficient, so about even in cost? I'll look at my utility costs and do the math.
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