Hart & Iliff Fuel and Energy Systems

Hart & Iliff Fuel and Energy Systems holds a 4.8-star average across 98 customer reviews, positioning them among the most trusted HVAC contractors serving Newton and the broader Sussex County region. The company has operated continuously since 1889, making it one of the longest-running fuel and heating businesses in northwestern New Jersey. Their service portfolio spans residential heating oil delivery, boiler and burner installation, central air conditioning, and radiant heating systems.

What distinguishes Hart & Iliff from regional competitors is their Ultrablend Heating Oil formula, which uses advanced detergent, stabilizer, and EPA-approved microbiocide technology to maintain system efficiency. They maintain 24-hour emergency availability for existing customers and offer price protection programs designed to shield homeowners from winter fuel cost spikes. Their product lineup includes Buderus residential boilers, Peerless series oil boilers, Lochinvar condensing gas boilers, and Riello burners, representing multiple premium manufacturers.

Reviewers repeatedly name specific technicians who resolved challenging situations. A Newton-area homeowner praised technician Elias for diagnosing and persisting through a complicated furnace problem that required detective work. Another customer described John as professional and knowledgeable when explaining heating system issues in plain language. Longtime customer Al Streicher noted that Charles Brand personally returned his call regarding boiler service questions, emphasizing that the premium service quality justifies slightly higher annual costs for the peace of mind it provides.