Can I file separately if married and previously filed jointly to take advantage of a tax credit?

This year when doing taxes, my wife and I filed jointly, as we normally do. However, when entering my tax/employment info (we used turbo tax), we owed money this year until my wife's tax/employment info was entered. uming the same withholdings from my own pay this coming year (which apparently would have left me owing money if I filed individually this year), can we file separately next year so that I would be able to take advantage of a tax credit (I was told the tax credit - for installing a furnace/ac - would only be able to be claimed if I owed money at the end of the year for taxes)? Thanks in advance