A superb try by Jacob Stockdale, his sixth of the season, plus 12 points from the boot of scrumhalf John Cooney, saw Kiss' men pick up a win on English soil for the first time in three years.
"I'm pleased, obviously," said Kiss, immediately following the success. "The conditions certainly shoved the game in a certain direction and you have to adapt some of the plans that you've put together.
"It wasn't perfect but it wasn't a day for perfection. It was a day for getting down and dirty and fighting the tough moments out.
"It wasn't easy that game, it was a fair amount of points in these conditions but it took a while to get there. The boys challenged each other to stand up, to dig deep, stay on plan and deliver in the big moments, and I thought we did that."