  Evidence is beginning to be put forward that demonstrates the role of the
chromosphere in supplying energy and mass to the corona. We aim to assess the
role of chromospheric jets in active region dynamics. Using a combination of
the Hinode/SOT Ca II H and TRACE 1550 {\AA} and 1600 {\AA} filters we examine
chromospheric jets situated at the edge of a sunspot. Analysis reveals a near
continuous series of jets, that raise chromospheric material into the low
corona above a sunspot. The jets have average rise speeds of 30 km\,s^{-1} and
a range of 10-100km\,s^{-1}. Enhanced emission observed at the jets leading
edge suggests the formation of a shock front. Increased emission in TRACE
bandpasses above the sunspot and the disappearance of the jets from the Ca II
filter suggests that some of the chromospheric jet material is at least heated
to \sim0.1MK. The evidence suggests that the jets could be a mechanism which
provides a steady, low-level heating for active region features.
