Heating, Furnaces & Boilers
These articles cover the heating systems most common on Long Island: gas and oil furnaces, hot-water and steam boilers, and the thermostats that control them. They are for homeowners who want to understand a no-heat call before it happens, and most heating repairs are completed the same day; the cost depends on the failed component, the fuel type and how old the equipment is.
A large share of homes between Deer Park, Babylon and the Huntington line still heat with oil-fired boilers feeding baseboard radiators, while newer construction and many renovated homes run gas furnaces with ductwork. Each fails in its own way. Boilers lose pressure, circulator pumps seize and expansion tanks waterlog; furnaces trip on dirty flame sensors, failed igniters and blocked condensate drains on high-efficiency units. The first cold week of the season brings a wave of these calls, which is why fall maintenance matters so much here.
You will find step-by-step checks you can make safely, such as confirming the thermostat is calling for heat, resetting a tripped switch and replacing a clogged filter, along with explanations of the work that needs a professional: burner service, heat exchanger inspection, carbon monoxide safety and boiler replacement. We also explain when a repair is still worth doing on an older system and what to weigh when you replace it, including whether a cold-climate heat pump makes sense for your home.
If you have no heat right now, use the troubleshooting guides below and then call K2 at (631) 414-7141. We answer around the clock and dispatch heating technicians from our shop at 60 S 2nd St, Unit V in Deer Park.
Looking for help rather than reading? See our heating repair service or request service online.
All Heating Articles (17)
Baseboard Heat Not Working in One Room? Air, Boiler Pressure and Zones Explained
Many Long Island homes heat with hot water baseboard. When one room stays cold, the cause is usually trapped air, low boiler pressure or a stuck zone valve. Here's how to tell which one.
Carbon Monoxide and Your Heating System: What Long Island Homeowners Need to Know
If your Long Island home has a gas or oil furnace, boiler or water heater, New York law requires carbon monoxide alarms. Here's where they go, what causes CO, and what to do if one sounds.
Stop Flipping Between Heat and AC on the Same Day
Switching between heat and AC on the same day will not damage a furnace. The one real risk is restarting the air conditioner within a few minutes of it shutting off. AUTO mode with a wide gap between the heating and cooling setpoints stops the flipping.
Why Your Heat Smells Like Burning the First Time You Turn It On
Furnace Won't Turn On After Summer? 7 Things to Check Before You Call
Why Smart Long Island Homeowners Book Furnace Tune-Ups in September, Not November
Smart Thermostats for Long Island Homes: Worth It or Marketing Hype?
Why Your Thermostat Might Be Lying to You (And Costing You Money Every Month)
How Much Does Heating Repair Cost in 2026 in NY?
Keeping your home warm during the winter is essential, and one regular way to do this is to handle heating repair costs. But how much does a heating repair cost
Winter HVAC Maintenance Checklist: Keep Your Long Island Home Warm and Efficient
As temperatures drop across Long Island and New York, your HVAC system works overtime to keep your home warm and comfortable. The last thing you need during the
Combi vs. Conventional Boilers: Which Is Right for Your Home?
Boiler models for new installations can be challenging to choose from. First, you must understand the differences between conventional and combi boilers to pick
Upgrade to Green: Easy Steps to Install an Eco-Friendly Boiler and Slash Your Energy Bills
Eco-friendly boilers are in high demand as we set higher net-zero carbon goals. They save energy and emit fewer emissions. Changing to a new eco-friendly boiler
No Heat in New York? Furnace, Boiler and Baseboard Problems and What to Do
When your heating machine breaks down unexpectedly, it is more than an inconvenience, it may quickly become a disaster, especially in NY’s cold. Whether dealing
10 Common Heating Problems and When You Need Heating Repair
As winter approaches, a reliable heating system becomes paramount for homeowners and renters alike. A well-functioning heating system isn’t only a luxury; it’s
The Ultimate Boiler Maintenance Checklist: Keep Your Heating System Running Smoothly
Boilers are integral to maintaining a warm and comfortable home, especially during the colder months. However, like any other machinery, they require regular ma
When Is It Time To Replace A Furnace? 6 Telling Signs
If the furnace breaks, Replace A Furnace may be needed. Even the best furnaces need to be changed after 20 years due to natural wear and tear. In good condition
Why Is My Furnace Blowing Cold Air? The Ultimate Guide
A furnace is a important component of any Heating System in a house or other structure. Its purpose is to keep occupants warm and comfortable throughout the chill