Oil Furnace Ratings part 5, Reviews of the Dornback, Ducane, EFM, Granby, and Heil brands

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The basic models from this brand are available in four configurations to fit most any installation situation. They have a ceramic combustion chamber but the warranty on the units (especially the heat exchanger) is not very good. They offer a 95% AFUE condensing oil furnace. It has a durable stainless steel heat exchanger and can be vented through a three inch pvc pipe. 


This brand is from ALLIED AIR ENTERPRISES which is owned by LENNOX INTERNATIONAL. They offer basic 83% efficiency units in upflow, horizontal, and lowboy configurations. They have a ceramic lined heat exchanger and are backed by a very good warranty but are only available through their factory authorized dealer network.


This brand offers a variety of models to fit all installation requirements. They have a durable ceramic lined combustion chamber but their website is not much help. They are only available through a very limited dealer network in the USA.


These units are made in Canada and are available in North America but only through authorized installers. The CONFORTO KHM model is a basic unit that features a three pass heat exchanger and durable stainless steel combustion chamber. It is also available as a premium model with their ECM blower motor.

The KLC model (shown here) is a high efficiency unit with an average warranty. 


This brand is from INTERNATIONAL COMFORT PRODUCTS (ICP) which is a part of UNITED TECHNOLOGIES CORP. The PERFORMANCE 86 OUF is a basic model that has a ceramic combustion chamber for durability and efficiency. The QUIETCOMFORT 85 NOMV models have a variable speed blower and durable stainless steel heat exchangers. All of the models offer an optional direct vent kit and are backed by a good warranty. The units are available in the USA and Canada but only through factory authorized dealers.

Other Oil Furnace Brand Ratings

You can continue to browse our alphabetical list of manufacturers but, if you are looking for a specific brand, you can enter its name in the search box at the top of the page.

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