The FBI had installed a secure room in James Comey’s basement so he could work on sensitive matters but Comey didn’t like to use the room because it got too hot, according to a damning inspector general report released Thursday.

Comey dubbed the room the “sweat box” and said he preferred to work in a more comfortable spot in his home.

The Justice Department’s inspector general found that Comey broke FBI rules by providing a memo that contained sensitive information to his friend with instructions to leak the contents to a reporter. He was also slapped by the IG for, after he was fired, improper handling and disclosure of the memos he wrote about President Trump and conversations they had in the Oval Office.

Comey’s basement was outfitted with a Sensitive Compartmented Information Facility (SCIF), an access-controlled facility used for review of information derived from intelligence sources or methods. “Comey’s home SCIF contained Unclassified, Secret, and Top Secret/SCI enclaves, with a secure printer and a safe,” the IG wrote.

The bunker came to light when the former FBI director was pressed by DOJ investigators on why he didn’t use the SCIF when writing his infamous memo about dining at the White House on Jan. 27, 2017, when Trump asked Comey for “loyalty.”

Comey said that, after reviewing Memo 2 on his personal laptop on Jan. 28, 2017, he used his personal printer to generate two paper copies (which he referred to as “two originals”), placed handwritten page numbers in the upper right-hand corner of each page, initialed the last page of each original, added a handwritten date (Jan. 28, 2017), and then deleted the electronic file from his personal laptop. Comey explained that he is “a maniac … about hacking of [his] personal devices” and that he is “obsessive” about deleting files from his personal accounts, according to the report from DOJ Inspector General Michael Horowitz.

Asked why, in light of all those concerns, he did not just use the computers available in the SCIF in his basement, Comey said he wasn’t thinking about his memo as belonging to the government, so he used his personal, unclassified laptop. “This is for me,” he thought, according to the report.

But the ousted top G-man ultimately revealed the overriding reason he preferred not to use the secure room when writing unclassified material at home: It was a “very, very small,” windowless converted closet that “was always about 110 degrees.”