the ones you have will be sufficient. nice layout and i must ask if you have test fired it yet? (you can run it out the window). it looks great.
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Ernie and Erica
Wood burning stoves, Rocket Mass Heaters, DIY,
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It won't run right at window level. My house is so negative the stove fights the incoming rush of air and exhaust puffs out the ducting seams. But it is drafting well hooked up to a 6" triple wall outside chimney.
I fired it once this morning and it took the house from 66F on the ceiling and 50F on the floor to 82F on the ceiling and 70F on the floor right now, the stove has been out for some time. It is weirdly warm outside for this time of year right now at 40F.