The comfortable 41-10 win saw them top Pool 1, but it was the visitors who had the first chance at Meggetland.
Stand-off Ross King missed that penalty opportunity, though and, with a quarter of the match played, Heriot’s were 10-0 up. The tries came through centre Max Nimmo and scrum-half Richard Tran, the latter after a well-worked move. Three more tries arrived for the RBS Premier B side before the break, the first by winger Cammy Bruce, the second by Nimmo and the third by centre Andy Douglas.
Full-back Colin Goudie converted the latter two to make it 29-0 at the interval.
The second-half seemed like it would all be about damage limitation for the East Lothian men but, to their credit, they started the period strongly and had scored two tries by the 56th minute.
They came from second-row Colin Stuart and then winger Kyle Adam, the latter showing good skill to collect a crossfield kick and touch down.
The RBS Premier 3 men can be pleased with their effort in the second 40 minutes but it was Heriot’s who finished the scoring with tries from Goudie and Bruce.