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Heating is the largest energy expense in most homes, accounting for around two-thirds of annual energy bills in colder parts of the country. Reducing your heating energy use is the single most effective way to save money and reduce your home’s contribution to global environmental problems. Heating systems in the United States spew over a billion tons of CO2 into the atmosphere each year and about 12% of the nation’s sulfur dioxide and nitrogen oxides
Hot water from the boiler circulates directly through the cylinder. Alternatively used for all electric immersion heater operation.
There are
different brands of cylinder wraps on the market. As the size may vary, make
sure the wrap is the correct size for your cylinder.
The insulation
value of wraps may also vary. The R-value gives an indication of the insulation
value of a wrap: the higher the R-value, the more heat retained. Not all wraps
have the insulation value marked on the packaging though. The following table
gives the R-value of the different brands that are known to Environment
Canterbury.