There are many good books concerning home heating. Examples are: Advanced Oil Heat from the Petroleum Marketers Association of America, Canadian Oil Heating Manual from the Canadian Oil Heat Association and Modern Hydronic Heating by John Siegenthaler. The following is meant to supplement these and other good references.
	Home Heating 101
	Introduction - Adobe PDF
	Combustion - Adobe PDF
	Heat Transfer - Adobe PDF
	Venting - Adobe PDF
	Fans - Adobe PDF
	Quick Heat - Adobe PDF
	Thermal Shock - Adobe PDF
	Control Systems - Adobe PDF
	Tankless Coils & Triple Aquastats - Adobe PDF
	Understanding Oil Tank Failures - Adobe PDF
	Maintenance - Adobe PDF
	Tools - Adobe PDF
	Rules of Thumb - Adobe PDF
	All Modules in one document - Adobe PDF