71.   Frezzo said four kinds of heating systems were generally in use today.

72.   Generally speaking, you would use this system to power a computer, lights, a refrigerator, a water pump, and gas or oil-fired heating systems.

73.   Given all these issues, which way should a home buyer go when faced with installing a new heating system?

74.   He had heard that some filters reduced dust but also could restrict the air flow through the furnace causing the heating system to be less efficient.

75.   Have the burner in your heating system tuned annually by a heating specialist and make sure the venting system is well maintained.

76.   He redid the heating system, much of the plumbing and put a cathedral ceiling in his bedroom.

77.   He is having a new kitchen installed, after which he plans to add two bathrooms and a new heating system.

78.   Heating systems are usually characterized by the medium they use to transmit heat from the furnace to the living quarters.

79.   Heating experts say that homeowners who have not prepared their heating systems for the winter should do so right now.

80.   Heating systems can also set off an alarm if something goes wrong.