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Old 09-13-2008, 09:45 PM   #2 (permalink)
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well it depends where the tank is located and how often you are using the water but basically yes it will save you money.

I dont know what accounts for being costly for you as i have no real concept of prices for such things in the US but you may want to take a look at this link

Radiant Barrier Water Heater Tank Jacket

How Radiant Barrier works - Energy Efficient Solutions

Any insulation will help but ideally you want something that is going to reflect the heat back in just like a huge thermos. the first thing that springs to mind as a budget option is camping mats with a thermal backing they cost nothing really but if you have even sat or laid on one you will know how good they are for reflecting heat
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