  We outline Hutchings's prescription that produces an ECH analog of Latschev
and Wendl's algebraic $k$-torsion in the context of $ech$, a variant of ECH
used in a proof of the isomorphism between Heegaard Floer and Seiberg-Witten
Floer homologies; and we explain how it translates into Heegaard Floer
homology.
