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Electric water heaters cost between $600 and $3,500 to replace, for an average cost of about $2,100. However, many states are phasing out gas water heaters in favor of electric water heaters, so ...
Condensing boilers are water heaters typically used for heating systems that are fueled by gas or oil. When operated in the correct circumstances, a heating system can achieve high efficiency (greater than 90% on the higher heating value) by condensing water vapour found in the exhaust gases in a heat exchanger to preheat the circulating water.
Installing a water heat recycler reduces energy consumption and thus greenhouse gas emissions and the overall energy dependency of the household. Typical retail price for a domestic drain water heat recovery unit ranges from around $400 to $1,000 Canadian. For a regular household, water heating is usually about 20% of overall energy demand.
When implementing in a house without a basement on a flat lot, an external condensation tower can be installed at a depth lower than where the tube enters into the house and at a point close to the wall entry. The condensation tower installation requires the added use of a condensate pump in which to remove the water from the tower.
Direct electric resistance tank water heaters are not included in the Energy Star program; however, the Energy Star program does include electric heat pump units with energy factors of 200% or higher. Tankless gas water heaters (as of 2015) must have an energy factor of 90% or higher for Energy Star qualification.
For example, a Rinnai America tankless non-condensing natural gas water heater goes for roughly $1,000 at Home Depot, while a comparable condensing tank goes for about $1,800.
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