Oil heat 1-888-RER-Fuel Bedford, MA

This chart compares the annualized efficiencies of typical methods of heating and domestic hot water production with System 2000's impressive performance.

The table below provides background data used to create the above "Annualized Efficiency Comparison" bar chart.

	Conventional Boiler (Tankless Coil) Typical Home	Conventional Boiler Separate Hot Water Tank	System 2000 with Digital Energy Manager's Purge Control
	86% AFUE	86% AFUE	87% AFUE
Chimney Loss	132 gal. - 15%	118 gal. - 15%	78 gal. - 13%
Jacket Loss	35 gal. - 4%	31 gal. - 4%	12 gal. - 2%
Standby Loss	131 gal. - 15%	72 gal. - 9%	6 gal. - 1%
Room Air Loss	85 gal. - 9.5%	70 gal. - 9%	6 gal. - 1%
Home Comfort & Hot Water	497 gal.	497 gal.	497 gal.
Real Annual Fuel Usage	880 gal.	788 gal.	589 gal.
Net Efficiency	56%	63%	83%