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HVAC Tips

HVAC Tips

Practical notes on heating, cooling and hot water in New York City buildings — written for the systems and the weather we actually have.

No Heat: What to Check Before You Call
5 min read

No Heat: What to Check Before You Call

Four things worth checking in the two minutes before you ring anyone. One of them fixes the problem surprisingly often, and the rest tell whoever comes out where to start.

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Why Your Mini-Split Stopped Cooling
4 min read

Why Your Mini-Split Stopped Cooling

It runs, the fan turns, the light is on, and the room stays warm. Four causes account for most of it — and the first one you can fix yourself in ten minutes.

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Tankless or a Tank? What Actually Decides It
5 min read

Tankless or a Tank? What Actually Decides It

Tankless is not automatically the better choice. Your gas supply, your venting and your incoming water temperature decide it — and in a New York winter, that last one matters more than people expect.

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Service Your Rooftop Unit Before the First Hot Week
4 min read

Service Your Rooftop Unit Before the First Hot Week

An RTU that fails in a July heatwave does not just cost a repair. It closes the business, on the day everyone else's is failing too.

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