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Propane vs. Natural Gas vs. Heating Oil: Knox County Home Heating Fuel Comparison

Homeowners have a variety of home heating fuels to choose from. Heating oil is the most popular choice in Knox County, used by 344,285 or 59.84% of homes. The 2nd most popular choice for Knox County homeowners is propane, used by 74,720 homes (12.99%). The remaining homes are heated with electricity (53,649), wood (50,553), natural gas (46,832), and other fuels (16,018).

Knox County Primary Home Heating Fuel Popularity by Number of Households

FuelKnox County Households % of Households
Heating Oil344,28559.84%
Natural Gas46,8328.14%
Other Fuels10,7761.87%
No Fuel2,2210.39%

Heating oil (59.84)

Propane (12.99)

Electricity (9.33)

Wood (8.79)

Natural gas (8.14)

Other fuels (1.87)

No fuel (0.39)

Solar (0.31)

Coal (0.22)

#2 Heating Oil (Fuel Oil) Use in Knox County

Heating oil has become less popular in Knox County. In the 8 years since 2014, the number of heating oil homes fell from 368,680 to 344,285, a 6.62% drop.

Knox County Heating Oil Households (2011 - 2022)

YearHeating Oil Households

Propane vs. Natural Gas use for home heating in Knox County

Between 2014 and today, the number of homes using propane as the primary space heating fuel rose from 42,849 to 74,720.

Between 2014 and today, the number of homes using natural gas as the primary space heating fuel rose from 30,124 to 46,832.

Electricity use for home heating in Knox County

Electric space heating systems are becoming more popular in Knox County. Since 2014, the number of homes heating with electricity rose from 26,483 to 53,649, a 102.58% increase.

Solar use for home heating in Knox County

Solar is the most environmentally friendly of all space heating fuels. With an “active” solar heating system, liquid is circulated between solar panels on a home’s roof and a heat energy storage tank in the basement.

Currently, 1,762 homes in Knox County are heated with active solar arrays. This is a 298.64% increase from 2014, when only 442 homes had installed active solar heating.