The Black Ops 6 boiler puzzle has you lighting a furnace by turning valves to get a pilot light on for a generator. It's not that clear though, with some trial and error required to work out what you need to do. I've completed it though, so let me explain what you need to do.
This objective is paired with the Black Ops 6 piano puzzle as only when you've done both can you open the secret door the two are linked to. However, because you can do either in any order you might have no idea what's going in at first. So check out this and my other guide to fill you in.
Black Ops 6 furnace puzzle solution
The Black Ops 6 furnace or boiler can be found by down some stairs behind the door in the corridor, directly behind the room where Frank Woods is sat. That will lead to a basement where you can find the boiler in a side room.
A note will explain that you can't light the pilot light with the fuel line fully open because of a leak, and you'll need to fill it with water once the light is on to get it going.
These are the BO6 generator parts you'll need to interact with, in the order to use them
So to light the boiler in Black Ops 6 follow these steps:
- Turn the middle boiler valve twice to stop the leaks - the dial should drop to zero.
- Turn the furthest most fuel valve once, so the dial is half way.
- Turn on the pilot light.
- Go back to the middle boiler valve and turn it once.
That sequence should light the furnace in Black Ops 6 and you'll know when you've got it right because all the interaction prompts will disappear and you won't be able to touch anything any more.
Now you can open the door at the bottom of the stairs you unlocked by solving the piano puzzle. Inside you'll need to decrypt the Black Ops 6 keypad to proceed and be one step closer to the Black Ops 6 safe code.
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