Curiosity almost burned down the house.
Home security footage shows the moment a 9-month-old dog named Kahuna was "rearranging" the furniture by knocking over an ironing board, causing the items on it to block a floor heating grate, the Los Alamos County Fire Department said in a news release.
"The furnace was operating and produced sufficient heat to melt some items, which flowed into the heater and served as the necessary fuel to initiate the fire down inside the furnace unit," fire officials said.
Officials said it took about an hour for the fire to ignite.
Both Kahuna and the other dog seen in the video, Paige, escaped uninjured, according to officials.
Firefighters said they were able to "quickly douse" the fire and limit damage to the structure.
"LAFD recommends homeowners ensure that smoke alarms are installed and working, that no combustible items be placed on or within three feet of heating devices or heat producing appliances," the department said on Facebook. "Another important safety practice is to have an escape plan as demonstrated perfectly in the video."