Haviland HVAC INC

10/06/2026

Does your technician clean your oil burner nozzle and put it back? Here's why that's a problem.

This little brass part is the nozzle. It's about the size of a thimble, and it decides how your oil boiler burns.

Look closely and you'll see numbers stamped on it. On this one:

🔴 1.25 = gallons of oil per hour
🔴 70° = the angle of the spray
🔴 B = the spray pattern

Its job is to turn heating oil into a fine, even mist. To do that, the passages inside are machined with real precision. Poke them with a wire or hit them with a brush and you can damage them without seeing a thing. What you will see later: soot, an oil smell, and a bigger fuel bill.

And even an untouched nozzle wears out after a season of hot oil under pressure. Cleaning can't fix wear.

A new nozzle costs a few dollars. That's why we replace it at every annual tune-up, change the filter and strainer, and finish with a combustion test.

Heating season is almost here on Long Island. When was your nozzle last replaced? Tell us in the comments, or send us a message to book your tune-up.

10/01/2026

Your car gets an oil change every year. Does your oil burner? 🔥

Most of us wouldn't skip an oil change or a filter swap on the car. But the oil burner in the basement, which can burn hundreds of gallons over a Long Island winter, often goes years without anyone touching it.

An oil-fired boiler is a combustion system that lives in your home. A pre-season tune-up is its annual service:

✅ Replace the oil filter and nozzle for clean fuel flow and a proper spray pattern
✅ Brush out soot from the combustion chamber and flue passages, because soot blocks heat transfer and wastes fuel
✅ Check the ignition electrodes and controls to cut the risk of a no-heat call on the coldest night
✅ Run a combustion test and adjust the air so the burner burns clean
✅ Inspect for leaks, the relief valve, and carbon monoxide risks

Most boiler manufacturers call for cleaning at least once a year. The label on the boiler in this photo says exactly that.

Skipping it can mean a lockout in a cold snap, fuel use that quietly creeps up, and in bad cases a puffback that coats the basement in soot.

October is the right time to book, before the first cold front.

Haviland HVAC Inc. | Licensed & Insured | Serving Long Island
📞 (212) 655-5777
🌐 havilandhvac.com

09/29/2026

Heating oil prices are taking off, and my own boiler was burning oil all summer. 😬

Heating oil on Long Island went from $5.57 to $6.37 a gallon in just three weeks (NYSERDA survey, Aug 31 – Sep 21, 2026).

I'm Zhifeng, owner of Haviland HVAC. I've fixed a lot of other people's boilers, but this month I finally took a hard look at my own. Here's what I found:

🔥 It kept itself hot all year. Like a kettle left on low all summer. No heat needed, still burning oil.

🚿 The "hot water first" feature never worked. The switch was on, but it was wired to the wrong spot.

🔁 The hot water tank kept waking the boiler up. On, off, on, off, all day long.

No new equipment. No new pipes. Just the right settings. I'm tracking my oil use now, and I'll post the real numbers in two weeks, good or bad.

⚠️ Please don't try this yourself. If your hot water comes straight from the boiler (no separate tank), it's a different story, and the wrong setting can leave you with cold showers or a damaged boiler.

📸 Want to know if your boiler has the same problem?
Send us two photos on Messenger:
1️⃣ The small box with dials or a display on the boiler
2️⃣ The circuit board with a row of lights on the wall next to it

We'll take a look for free and tell you if it's worth tuning.

Quick question for my neighbors: have you ever touched your boiler in July and found it warm? Tell me in the comments 👇

09/25/2026

Is your walk-in really holding temperature? 🧊

The display might read 36°F, but the temperature inside can swing throughout the day. Add a coil that keeps icing up, and the results show up in the kitchen: product thrown out before its time, quality that shifts from week to week, and ingredients that lose freshness too soon.

Haviland HVAC offers refrigeration performance tuning for restaurant walk-in coolers and freezers across Manhattan and Long Island.

Here's how it works:
✅ A condition assessment plus a 168-hour temperature log of your unit as it runs today
✅ A straight answer on whether it's ready for tuning or needs repair first (you choose who does any repair)
✅ Control tuning for steady temperature and no coil icing, then a second 168-hour log so you can see the before and after

Numbers, not promises.

📩 Send us a message to talk through how your walk-in is performing.

Call now to connect with business.

07/21/2026

🔧 Three technicians came before us. The system still wasn't fixed. So the homeowner called Haviland.

Last Saturday in New Rochelle, we walked into a familiar situation: an AC system that had completely stopped cooling — and a frustrated homeowner who'd already had three different technicians out to look at it. Three visits. Still broken. 😓

The culprit was a refrigerant leak. And here's the thing about leaks — you have to actually find them before you can fix them. Just adding refrigerant and walking away is why that system kept failing.

So we did it the right way: 👇

🔍 Used an electronic detector to pinpoint the exact leak — no guessing
🔧 Re-made the flare connection at the source to seal it properly
🌡️ Pulled a deep vacuum to 480 microns to clean the system out
📊 Recharged with R-410A to the correct pressure — by the numbers

A little while later, we got the message every technician loves to see:
💬 "Thank you again, it is working good." ✅

That's the whole job, right there. Not a quick patch — a real fix that lasts. 💪

If your system keeps breaking down, or you've had people out who couldn't get to the bottom of it, we'd be glad to take a look. We find the root cause and fix it right the first time. 👇

📞 (212) 655-5777
🌐 www.havilandhvac.com
📍 Serving Long Island & the NY Tri-State Area | Licensed • EPA-Certified

07/04/2026

✨ HAPPY 4TH OF JULY! Celebrating 250 Years of America! ✨

Can you believe it? Today marks our nation's Semiquincentennial—250 incredible years of freedom, innovation, resilience, and community! 🇺🇸❤️

From the iconic landmarks that tell our history to the fireworks that light up our night skies, today is all about celebrating the spirit that connects us all. 🎆

At Haviland HVAC Inc., we are so incredibly proud to serve the amazing families and local businesses that keep this country moving forward. We’re grateful for your trust every single day, and we love being the team you count on to keep your homes comfortable and safe. 🛠️🏡

How are you celebrating this historic milestone today? Backyard BBQ, watching the local parade, or catching the fireworks? Let us know in the comments below! 👇👇

Wishing you all a safe, happy, and unforgettable 4th of July filled with good food, great company, and beautiful memories! 🇺🇸✨

07/02/2026

🌇 Racing the clock — and winning.
When this property owner called us, the situation was simple but the pressure was real: new tenants were moving in on July 1st, and the entire building needed to be climate-ready before they arrived. No wiggle room, no "next week."
So we got to work. Over 10 days, our team handled the complete utility rebate process from start to finish. Then, on June 29th, our three-person crew focused everything on this one site and installed 8 ductless mini-split systems in a single day — finishing a full day ahead of the deadline. ✅
These photos say it all. We started in the evening light and kept going long after the sun went down — four ladders working at once — because when we make a commitment, we keep it. 🪜
The property owner and the real estate agent were both thrilled. Every unit was installed, tested, and running before the first tenant ever turned the key. 👏
That's how we do things at Haviland HVAC: solid work, honest effort, and a promise kept.
Planning a new install, a rental turnover, or a whole-building HVAC project on Long Island or across the NY tri-state? We'd love to help.

04/22/2026

Pure Satisfaction: Ductless Mini-Split Indoor Unit Deep Clean! 🌬️🚿

Hidden mold and dust in your ductless mini-split? 🤢 Not anymore!
Watch this satisfying high-pressure wash of an indoor unit, complete with a specialized catch bag for a mess-free job.
We don't just clear the surface; we deep clean the coils and fan wheel for maximum efficiency and healthier air.
Is your Long Island home summer-ready? Don’t let dirty air ruin your comfort.

04/22/2026

One year of Long Island dust and allergens gone in seconds!
Watch this Midea U-shaped unit get its well-deserved refresh before the summer heat hits.
A clean filter means lower energy bills, a longer-lasting unit, and most importantly—crisp, healthy air for your family. 🌬️
Don't let your AC work harder than it has to. Get it ready for the heat today!

04/22/2026

Summer is just around the corner in Long Island! Is your AC ready to beat the heat?Fresh, crisp air starts with a clean system—not just for cooling, but for your family's health.
Don’t wait for the first heatwave to strike! Schedule your AC "Spa Day" now and enjoy a worry-free summer.

Call now to connect with business.