• 1st in automated direct fire tube heating
• 1st in a jacketed fire tube heater that later resulted in the unique 2 pass jacketed oil heater
• 1st in installing a jacketed 1+1 oil heater in the product tank
• 1st in developing the water heating tank for the concrete producer
• 1st in using a waste oil fired burner in a water heating tank
• 1st and only manufacturer to use a patented clover-leaf combustion chamber that creates back pressure in the combustion zone creating a hotter fire
• 1st and only heating manufacturer that designs and builds its own high efficiency burner in house

Still a family owned and operated business in New Jersey, Bob Giannetti Sr & Bob Giannetti Jr are committed to producing the highest quality, most efficient industrial heating systems on the market today.

IOT employs a staff of experienced welders & fabricators that are committed to excellence.  Many of these employees have been with Infern-O-Therm for over 20 years.  Our main focus is to manufacture systems for the concrete and asphalt industries.

Click on products on this web site and take notice of the systems that have been improving the production for the concrete and asphalt industries.

• Stationary and portable direct fired water heating and chiller systems
• Water temperature blending systems
• Asphalt heating tanks, electric, coil and direct fire-tube
• Complete line of parts, on line & in stock
• In house technical support
• On call service technician

So when the situation arises, for the first and best in industrial heating systems.....

Move Forward with Infern-O-Therm!!