No heat or hot water since Thursday

I've been facing a problem with my apartment where there's been no heat or hot water since last Thursday. My landlord's explanation is that the fire department shut off the boiler because someone reported smelling gas, and now ConEd needs to certify it, with the landlord saying it could take days or even months to resolve.

This is a building wide issue.

I'm aware that NYC law requires landlords to provide heat and hot water. During the "Heat Season" (Oct 1st - May 31st), the temperature inside should be at least 68°F (6 AM - 10 PM) when it's below 55°F outside, and at least 62°F at night. Hot water must be provided at a minimum of 120°F year-round. I am also rent stabilized.

I've already reached out to my landlord, but the issue persists and keeps blaming ConEd. I have filed 311 reports daily but I'll be damned if I am spending $3k a month for cold showers.

What actions did you take in similar situations? Any advice on dealing with landlords or city agencies in these circumstances?

Thanks in advance for your help!