Ducting a pellet stove furnace vs passive
I’m trying to get a sense of whether adding duct-work to an existing pellet furnace, located in a basement, will ‘pay-off’. (not being financially rigid in using that term)
I know it’s a question that likely needs a hard analysis, but I’m hoping to get a ‘sense’ from those who understand HVAC better than I, using the following info:
—House is 1-1/2 cape, approx 1400 sq ft. It’s an office, and not many doors stay closed (fairly open layout)
—The basement is insulated with SPF from rim joist to floor (I think at least 2″)
—The pellet stove runs off a first floor thermostat and currently has a front end blower, but can accept ducting.
—The current opportunities for air to exchange with the upper floors are via the stair well (door removed) and one floor register a good distance away from the stove. Perhaps minimally through the floor itself.
—There is hydronic baseboard oil as backup, but the hope is to install heat pumps for the top level and rely (at least mostly) on the pellet stove for first floor.
One idea for a simple option is to open a few more holes in the floor for passive registers. Or maybe a set of fans? (one blowing up, another down?) Would either of these options be effective? Certainly a lot cheaper and easier than ducting.
GBA Detail Library
A collection of one thousand construction details organized by climate and house part