Yeo tied the game 1-1 13:08 into the second period, blasting a shot from just inside the blueline off a feed from Lennart Petrell.
The Barons almost immediately went on the power play on an interference call and, despite several strong chances, couldn't capitalize.
They had another power-play chance in the closing minutes but Heat goaltender Danny Taylor turned away several Barons chances and Abbotsford killed it off.
The Barons were 0 for 5 on the power play and haven't scored a power play goal since Jan. 1, going 0 for 26 with the advantage in their last five games.
“The power play was better tonight,” Nelson said. “We had some good looks, had some opportunities. We've just got to stick with it.”
Through the recent string of losses and being hit hard with call-ups from Edmonton, Nelson isn't about to panic.
“There's two ways to go from this--one way is to battle back, fight and keep going or give up,” Nelson said. “We have a lot of good people in that dressing room there and they're not going to give up. They're going to forge ahead.
“Every team goes though it. It doesn't matter how good you are or what your record is.”