Tadhg Beirne believes Munster's first-half performance at a stormy Sandy Park was "pretty exceptional" but warned his team-mates will have to keep upping the ante if they are to emerge from the Heineken Champions Cup pool.

The province dug out a 10-10 draw at the Exeter Chiefs on Saturday to pick up two precious points on the road. 

Battles with Castres and Gloucester are on the horizon and though Beirne was full of praise for how his side coped in testing conditions, he said there's no time to rest on any laurels.

"It was physical, tiring, you name it," he told RTÉ Sport's Michael Corcoran.

"It was a very tough game. You probably saw it from some of the kick-offs, they were going 20 metres and coming back ten. It ended up being a tactical battle.

"We couldn't nick the win in the end but it turned out that we saved ourselves a draw.

"Our first-half performance was pretty exceptional. They got a try at the end but our defence and the way we handled the conditions was outstanding. We were happy at half-time because we knew we were going out with wind at our backs and we were going to have most of the ball in the second half and come away with the wind but we'll take the draw."

Munster had to withstand an onslaught  at the death to get out of Exeter with a draw. They repelled wave after wave of home attacks to see it out and come home with a deserved share of the spoils.

"It was more or less a minute and a half of pure defence," Beirne added.

"Credit to the boys, they dug deep. We forced a knock-on at the end and we held on.

"It's the best of the best [in this competition]. We've just got to keep upping it. It's a lot of pressure but it's exciting."