Boiler, Pellet stove, Basement heat

MyBoyQuinn_1

I have an oil-fired boiler and an air handler that supply heat to my first floor. (Zone 1) The boiler also supplies hot water baseboard heat to the second floor. (Zone 2) Both zones also have independent central air with a second air handler in the attic. Both thermostats are Honeywell TH3110D1008. When the temperature in PA can't get out of the 40s, I turn off the t-stat in Zone 1 and use my pellet stove to heat the first floor. I would like to add some heat to my walk-out basement, which stays fairly warm until the temps get down in the 20s or below. I thought of tapping into my duct work and adding 1 or 2 small take-offs. Can I split the t-stat wire to Zone 1 and run a separate t-stat to the basement? Is it that simple? Would I need toggle switches? Or, would it be better to just add some electric baseboard? I just thought the hot air would warm up the area quickly. Thanks for any responses.