What heating sources are considered ineligible for manufactured homes?

The correct answer indicates that supplementary heat sources not installed by a factory or licensed contractor are ineligible for manufactured homes. This is important because manufactured homes must adhere to specific safety and installation standards to ensure they can adequately handle the heating system’s requirements. When heating sources are not installed by qualified professionals, there could be significant risks, including fire hazards or inefficient heating that may lead to safety violations.

Factory-installed heating systems typically meet regulatory requirements and are specifically designed to function within the manufactured home environment. Oil-based central heating and gas fireplaces, while they have their own compliance standards, do not fall under the supplementary category since they can often be part of the primary heating systems incorporated into the home design. Therefore, supplementary systems that lack proper installation oversight pose potential risks, leading to their ineligibility in compliance with established regulations for manufactured homes.