Williamson oil furnace prices can be found on websites such as eBay, FurnacePriceGuides and IngramsWaterandAir. As of March 2015, eBay features 10 different models of Williamson oil furnaces that are priced between $1,700 for a Williamson Temp-O-Matic oil furnace to around $2,600 for a Williamson High Efficiency Lowboy oil furnace.
Most of the Williamson oil fired furnaces sold through eBay come with free shipping and a 30-day money back guarantee.
FurnacePriceGuides.com provides average pricing information for Williamson oil furnaces that is based on a standard home size of 1,600 to 2,000 square feet, a 85,000 BTU furnace and a 1,200 CFM blower fan motor assembly. The average price for a Williamson oil furnace under these conditions is $1,750, while the average price to have it installed is an additional $3,000.
Ingram's Water & Air Equipment sells 11 different models of Williamson oil-fired furnaces, including Lowboy models with front and rear flues, High Efficiency Upflow and Temp-O-Matic series models. The least expensive unit is the Williamson High Efficiency Lowboy with front flue furnace that costs a little over $1,600. The most expensive is the High Efficiency Lowboy with a rear flue that is priced at $2,550. All of the Williamson oil furnace models come with free shipping and a discounted price for customers who pay by check.