Gas bills- Units or KWh ?

I have recently purchased a flat which has gas central heating and Hydro Electric are responsible for the bills for gas and electricity. I notice that the gas bills convert the units of gas used into KWh. Does Scottish gas do this as well or is this only done by an electricity supplier? Blair Malcolm
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.