Tankless and On-Demand Water Heater Services on Long Island, NY
Efficient, Endless Hot Water for Long Island Homes
At T.F. O’Brien, we stay focused on new comfort solutions so that we can offer our customers the latest innovations in home comfort. That’s why we’re happy to provide our customers with tankless and on-demand water heater systems in your Long Island, NY home.
To learn more about efficient hot water solutions, call us at 516.488.1800 and we’ll be happy to help.
Endless Hot Water
On Demand, Anytime
High Efficiency
Save on Energy Costs
Save Space
Small, Sleek & Wall Mounted
Tankless Water Heaters Provide Efficient, On-Demand Hot Water
Tankless water heaters, also known as on-demand water heaters, are energy-efficient systems that heat water only when it’s needed, rather than storing it in a tank. Unlike traditional water heaters, they do not maintain a reservoir of hot water, which reduces standby energy losses. When a hot water tap is turned on, cold water flows through the unit, where it is heated by either gas burners or electric elements. This process provides a continuous supply of hot water, making tankless systems ideal for households with high water usage.
These systems are compact and can be mounted on walls, saving valuable space in your home. Tankless water heaters are known for their long lifespan, often lasting over 20 years with proper maintenance.
Benefits of Tankless Hot Water Heaters
- Energy Efficiency: Tankless water heaters are highly energy-efficient because they only heat water when it’s needed. This can lead to significant energy savings and lower utility bills compared to traditional tank heaters.
- Endless Hot Water: With a tankless system, you’ll never run out of hot water. This is especially beneficial for large households or homes with high hot water demand.
- Space Saving: These units are compact and can be installed in smaller spaces. They can be mounted on walls, freeing up valuable floor space in your home.
- Longer Lifespan: Tankless water heaters typically have a longer lifespan than traditional tank heaters. With proper maintenance, a tankless unit can last up to 20 years or more.
- Environmental Impact: By reducing energy consumption, tankless water heaters help lower your carbon footprint, making them an environmentally friendly option for your home.
Why Should I Convert My Hot Water to a Tankless On-Demand System?
Tankless hot water system conversions are a great choice for Long Island homes for several compelling reasons. One major benefit is the ability to provide endless hot water on demand, making it ideal for households with high water usage or simultaneous demands. Tankless systems are significantly more energy-efficient, as they heat water only when needed, reducing standby energy losses associated with traditional storage tanks. This energy efficiency often leads to lower utility bills over time, making the upgrade cost-effective. These on-demand hot water systems are compact and can be mounted on walls, saving valuable space in your home. Their long lifespan, often exceeding 20 years with proper maintenance, offers great durability and reliability. For environmentally conscious households, converting to a tankless water heater can also reduce energy consumption and carbon footprint, contributing to a greener lifestyle.
"Timely and Responsive"
"Your employees are very knowledgeable and a pleasure to deal with. They arrive timely and are responsive to our questions or concerns. I highly recommend your company for new installs and maintenance of equipment."
T.G. | Maspeth, NY
Get Started with an Estimate
Call T.F. O'Brien Cooling & Heating at (516) 488-1800 or complete our short form below and a representative will reach out to you.
"Completely Satisfied"
"I was completely satisfied with the professionalism, quality, and courteousness of your service. I will continue to call on and recommend you all future AC/Heating needs. Thank You."
- T.F., Baldwin, NY
4.8
1,538 reviews
4.7
63 reviews
T.F. O’Brien review scores as of 3/13/25
T.F. O’Brien Provides Expert Tankless Water Heater Installation Services on Long Island
Installing a tankless water heater begins with selecting an appropriate location, often on a wall to save space. Proper venting is crucial for gas-powered units, so our on-demand water heater technicians will install a venting system to safely expel exhaust gases. For electric units, the electrical system may need upgrading to meet the heater's power requirements. Once the location and connections for water, gas (if applicable), and electricity are prepared, the unit is mounted and connected. Our tankless water heater installation experts will then test the system to ensure it operates effectively and meets safety standards.
Contact T.F. O’Brien for Your Tankless Water Heater Maintenance Needs
Our tankless water heater experts provide comprehensive maintenance plans for your system. Scheduling annual service appointments help ensure your on-demand water system remains energy-efficient and reliable for both heating and hot water needs. Proper maintenance also extends the lifespan of your water heater and can help prevent costly repairs.
Pay Nothing Until You Are Completely Satisfied
You can expect the following from our techs when they do work for you:
- They will care for your home and complete the job with speed and precision.
- They will not wear shoes on your carpets.
- They will clean up when they are finished and take personal responsibility for your satisfaction.
- They will not swear in your home.
- They will not smoke in your home.
- They are drug-free.
If you’re not completely happy when our technicians are done with the job, you won’t pay until you are totally satisfied with their work. The next time you need heating and cooling work done, call T.F. O’Brien and experience the difference.
Insured, Highly Qualified Professionals
Superior Craftsmen with Great Attitudes and Work Ethic
Our people are passionate about sharing their technical expertise to make every day more comfortable in our customers’ homes and businesses.
- NATE Certified Technicians
- EPA Certified
- Professional Engineers (PE)
- Family Owned since 1934
- Air Conditioning Contractors of America (ACCA) Member
- A Huntington Township Chamber of Commerce Member
- A New Hyde Park Chamber of Commerce Member
Financing Available
If you're looking to upgrade your system, but you have to work within a budget, then let T.F. O'Brien help make things a little easier with our financing options, subject to credit approval.