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Harper - Reinstate Monica
Harper - Reinstate Monica
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An on-demand water heater is perfect for this

The key is to regulate the rate-of-flow down quitequite low, so you can get sufficient temperature rise without having to useprovision a gigantic water heaterhuge amount of electrical service.

Regardless, this is like trying to air-condition a gazebo. The dishwasher itself - box, pumps and racks - has a lot of thermal mass, to say nothing of the dishes! Preheating the water to 150F will do precious little when it equalizes with all that other thermal mass. (Remember the water volume in a dishwasher is not high; it doesn't fill with water like a washing machine). It really depends on the dishwasher's internal heater, which needs either high current, or time.

An on-demand water heater is perfect for this

The key is to regulate the rate-of-flow down quite low, so you can get sufficient temperature rise without having to use a gigantic water heater.

Regardless, this is like trying to air-condition a gazebo. The dishwasher itself - box, pumps and racks - has a lot of thermal mass, to say nothing of the dishes! Preheating the water to 150F will do precious little when it equalizes with all that other thermal mass. (Remember the water volume in a dishwasher is not high; it doesn't fill with water like a washing machine). It really depends on the dishwasher's internal heater, which needs either high current, or time.

An on-demand water heater is perfect for this

The key is to regulate the rate-of-flow down quite low, so you can get sufficient temperature rise without having to provision a huge amount of electrical service.

Regardless, this is like trying to air-condition a gazebo. The dishwasher itself - box, pumps and racks - has a lot of thermal mass, to say nothing of the dishes! Preheating the water to 150F will do precious little when it equalizes with all that other thermal mass. (Remember the water volume in a dishwasher is not high; it doesn't fill with water like a washing machine). It really depends on the dishwasher's internal heater, which needs either high current, or time.

Source Link
Harper - Reinstate Monica
Harper - Reinstate Monica
  • 309.8k
  • 27
  • 294
  • 760

An on-demand water heater is perfect for this

The key is to regulate the rate-of-flow down quite low, so you can get sufficient temperature rise without having to use a gigantic water heater.

Regardless, this is like trying to air-condition a gazebo. The dishwasher itself - box, pumps and racks - has a lot of thermal mass, to say nothing of the dishes! Preheating the water to 150F will do precious little when it equalizes with all that other thermal mass. (Remember the water volume in a dishwasher is not high; it doesn't fill with water like a washing machine). It really depends on the dishwasher's internal heater, which needs either high current, or time.