My landlord is not fixing the carbon monoxide issue in our home?

We have carbon Monoxide being pushed through out bedroom window by a vent from a hot water heater. Our family has been extremely ill since we have lived here. Once being alarmed of the carbon monoxide detector being broken, we bought a new one which confirmed our fears. Immediately, I contact the landlord to have the issue fixed. She immediately blamed me for not having the issue fixed earlier and has yet to do anything. I have requested out gas company to come out and check the carbon monoxide levels which measured high enough to confirm our illness and my doctors reports. A gentleman called today claiming to be my landlords handyman saying he will be in tomorrow (two weeks after the carbon monoxide was reported) to removed the handles from our bedroom windows to make sure we can no longer open the windows.

On top of this I walked in on my landlord roaming through my house two days ago without a 24 hour notice and no explanation why she was there. Our smoke detectors have been dismantled and we are now being billed by an electrician to have them put back in.

I have no idea what to do at this point. I am in Oregon. With the costs of hotels and paying rent we are completely out of money and don't know what to do.