Danisi Energy

Danisi Energy is a true family owned and operated full service HVAC and Fuel delivery company servicing the Suffolk County area on Long Island, Danisi Energy has been in business for over 60 years. We are the only true full service Heating, Ventilation, Air-Conditioning Company in the area. When we say Full Service we Mean Truly FULL SERVICE. Installation, Repair, Service, Maintenance, on ALL types of Heating, Ventilation, and Air Conditioning systems. We also Deliver Home Heating Oil, Kero (Kerosene) and Diesel for both your residential homes and commercial buildings.

Is your water heater making rusty water and loud sounds? It's time to get it looked at and repaired or purchase a new one. To know for sure, let us evaluate your water heater. We have a team of highly-qualified technicians that can inspect and service the existing water heater in your home. Our team also provides new water heater installations. With regular inspection, draining, and flushing, you can expect a gas water heater to last anywhere from 8-12 years and an electric water heater to last anywhere from 10-15 years.

Technically, a heat pump is a mechanical-compression cycle refrigeration system that can be reversed to either heat or cool a controlled space. Think of a heat pump as a heat transporter constantly moving warm air from one place to another, to where it's needed or not needed, depending on the season. Even in air that seems too cold, heat energy is present. When it's cold outside, a heat pump extracts what outside heat is available and transfers it inside. When it's warm outside, it reverses directions and acts like an air conditioner, removing heat from your home.

Using Solar Power to heat your water is one of the most practical and cost effective ways to harness energy from the sun. Solar thermal systems absorb the sun's heat and use it to heat your residence's own hot water needs. In general, the solar thermal system will easily heat water to 140F or higher matching the range of its traditional hot water tank counterpart. Effective systems can collect up to 70 percent of the sun's energy that reaches them and transfer it to you. When you want to work with a trusted solar energy equipment supplier in Manorville, NY, Danisi Energy Company is an outstanding option.

The purpose of preventative maintenance is to keep your system running all season long with no breakdowns, while operating at it's best efficiency. It's easy to forget and neglect your HVAC system however it's important to perform so that your system is running for years to come! FACT: Mechanical systems break down, you can help prevent that by maintaining your system annually.

If you're faced with a furnace system emergency, or just need general repairs, Danisi Energy can assist you. We have been providing furnace system repair for more than 60 years, and we're dedicated to providing you with best service and quality repair work on your system. Our technicians are factory-certified and will thoroughly evaluate your furnace repair needs and find the best solution to help make your home as comfortable and energy efficient as possible. They'll arrive at your home on time and able to address any questions or concerns that you may have.

We know that budgets are tight, and a new HVAC system is a significant investment. Because we value your business, we're happy to offer promotions and special offers to help offset the cost of your furnace, boiler, heating system or air conditioner repair, installation, or service appointment. To take advantage of special offers, rebates, contests and promotions on high-efficiency air conditioning systems and furnaces. Call us today and speak with one of our comfort specialists to discuss your options.

You may have seen our trucks or even some of our crews installing HVAC systems in some of the surrounding homes and businesses. We are a family owned and operated company providing all types of services in the area for over 60 years! Danisi Energy's team has knowledge and expertise to deliver on any project requirements. Our team is available to manage your project from design, installation and post construction customer support/service. FACT: The average home being built today or renovated is getting BOTH central air conditioning or heating.