Spirit Furnaces
Feature Rich & Reasonably Priced.

SpiritOil-LowprofileSpirit™ oil-fired furnaces provide the performance of industry-proven features in a reasonably priced yet feature rich home heating system.

High Standards of Quality & Efficiency.

A quality Spirit contractor can measure your home and choose the correct size and model furnace to ensure your family’s comfort and lifestyle.

Made in the USA
Reliable & Trouble Free Operation.

Technological advancements in oil heating have made heating your home cleaner, safer, and more comfortable and reliable than ever before.

Spirit™ oil-fired furnaces are built in the United States by Thermo Products, a company with over 70 years of providing trouble free and efficient home heating systems.