Water Heaters

Newer heaters have warnings posted on the jacket not to add an insulation blanket, so be aware.

When the heater is gas or oil-fired, the insulation should be kept away from the burner area and no insulation should be installed on the top of the heater.

Heaters should be turned down to approximately 125 degrees Farenheight for safety, however, this could cause spotting of glassware in dishwashers if the dishwasher does not have an element to raise the temperature of the water. If spotting becomes a problem, increase the water temperature by several degrees at a time until the problem is resolved. When the dishwasher has to be replaced, you should consider installing one that will heat water in the dishwasher to the temperature required, thereby permitting the water temperature in the water heater to be reduced.

Peak timers may be installed on electric heaters so that water is only heated during specific times of the day. However, this concept requires that all activities using hot water (e.g. bathing, laundry, dishwashing, etc.) be accomplished at generally the same time. The electric utility company discounts the rate for the electric that is used through the peak timer.

Consider insulating the hot water supply lines wherever they are accessible, using either insulation specifically designed for pipes or 3 ½ inch faced fiberglass insulation, cut to size and held in place with duct tape; the vapor barrier should face the pipe.