radiant and or furnace heat in basement question

noah99

Hi all,
I have a 2500sq ft. basement with radiant zoned floor heat by a viessmann boiler as well as a Trane xc95m furnace supplying heat to the area. We have lived in the home for 4 years and in the past I have closed off all the heat registers and just ran the floor heat in the basement and use the furnace for the rest of the home. This fall I have been reading that I should never close my heat registers in the basement in the winter and have since opened them(I have no dampers installed to decrease the basement flow). The temperature is now very comfortable in the basement at 21-22c, but I have not even turned on the floor heat yet(live in Canada). My question is how should I set up the heating my basement with radiant or furnace heat or a combination? and which is most efficient. My basement has been very comfortable in the past with the radiant heat and would like to continue this way but I am concerned about having all the basement heat registers closed and causing issues with my furnace as well as no fresh air being introduced into the basement living space. Any help with this would be greatly appreciated as I am sure there are other homes that have this type of set up and would like to know how they heat their basement.
Thanks
Kevin