There were times when the members of Dangermuffin would play shows in their home base of Charleston using just acoustic instruments.

It was during that time, along with the fact that songwriter Dan Lotti typically writes on an acoustic guitar, that the group decided to do a mostly un-electric album.

The eight-song EP, “Heritage,” drops on Friday, the same night the quartet plays at Gottrocks in Greenville, and one day before a show at Isis Music Hall in Asheville, N.C.

“Every album we’ve put out has started from an acoustic guitar,” Lotti said. “Over the years, when we play shows in Charleston, we’d do this thing called AcousticMuffin, and we’d gig like that. We’d play all kinds of folk music and John Prine and Doc Watson and we’d get into reggae and we found a lot of nuance in that and we’d come off of it and allow some dynamics in that.”

Lotti said that he and his bandmates Mike Sivilli (guitar, vocals), Steven Sandifer (upright bass, percussion, vocals) and new member Markus Helander (drums) of Finland, have always wanted to do an album like this.

There are only a couple of tracks when Sivilli plays an electric guitar and the coastal-influenced songs hit on themes of the sea, sun, and spiritual connection.

“Heritage” is the sixth album released by the group and the follow-up to 2014’s “Songs for the Universe.”

“It’s not a sleepy record,” Lotti said. “There’s a lot of groove and it’s upbeat. There are a couple of ballads but there’s a lot of energy. I don’t think anyone will hear it and right off the cuff think it’s all acoustic.”

The oceanic vibe is in the songs because the majority of the group lives at South Carolina’s Folly Beach, except for Lotti, who moved to Weaverville, N.C., a few years ago. He and his wife moved there for an herbalist program she attended.

“I’ve written more songs since I moved to the mountains,” he said. “It’s changed me a lot, I think, in a lot of subtle ways just experiencing the natural seasons instead of the one-season world at the beach. I love (the beach) to death, but I like something fresh.”

It hasn’t changed how the band works together. They set up time to write new songs together and recorded the EP in Charleston last year.

When its time to tour, Lotti and the others set up a meeting spot where he drops off his truck (sometimes in a Wal-Mart parking lot) and they head down the road to play shows.

There are moments on his solitary drives back home where a song idea might pop into his head.

“I don’t have much control over it,” Lotti said of songwriting. “Some people say they are going to sit down and write a song and that hasn’t ever worked for me. Usually I hear it in my head. Sometimes it happens on the road, like on a late night drive, and I’ll be driving back to Asheville from wherever I left my truck and I’m a little tweaked out and trying to stay awake and I’ll hear a song. It’s weird how it happens.

“I’ll hear these melodies where I don’t think it comes from me. It’s something else. It’s my job to seize the moment because if you don’t grab your iPhone or whatever and try to capture that melody it’s gone forever. I’ve lost songs like that. I just try to develop them from that point on and that happens at home.”