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Posted: Oct 21, 2010

When Clark Public Utilities approached the Wrights to test out a heat-pump water heater, the Vancouver family of four decided to give it a go.

They already had been systematically replacing their appliances with more energy-efficient ones.

“It just kind of fits in with what we want to do with our family: be good stewards of the environment,” Mike Wright said.

The Wright household is one of four in Clark County participating in the pilot project, which involves the local utility, the Bonneville Power Administration and the Electric Power Research Institute. Nationwide, 160 homes are testing the water heaters, which employ 25-year-old heat-pump technology already widely used to heat homes.

Heat-pump water heaters cost about $1,500, compared with $900 for an efficient electric water heater. Read full article.

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What are Tiers?

Energy efficiency levels and features of heat pump water heaters vary by product tier. Higher tier products have greater efficiency and the more advanced product features.

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The higher the energy factor, the more efficient the water heater.