Friday, May 18, 2012

Bosch Electric Tankless Heaters

Bosch Electric Tankless Heaters

Flow Factor Sells Bosch Electric Tankless Heaters

Tankless Heaters are designed to save on electricity and to allow for unlimited hot water.

However, there are variables that need to be considered when purchasing a Tankless heater.

Electric tankless heaters can require larger size wires and panels than standard tank heaters.  At Flow Factor we will go over in detail what the heaters require so you can have a proper installation.  And with a proper installation, the heater will perform as designed.

Variables that affect the outlet water temperature, are heater KW, flow rate and inlet temperature.  These three variables affect all water heating appliances and the potential output temperatures.  A tankless heater heats the water as it flows through the heater.  Each electric (and gas) heater has a maximum heater capability.  For example, the largest heater, the AE125, is about 27 kilo watts.  The AE 125 can heat a flow rate of 2.5 gallons per minute (gpm) 65 degrees.  Meaning it can change the temperature of the water 65 degrees. So if the inlet is 40 degrees the output temperature will be 105.  It cannot produce water hotter than that at that flow rate. If the flow drops to 2.0 gpm than the amount of change increases.  If the flow is more than 2.5, than the amount of change decreases.  At 4.0 gpm, the change is 45 degrees.  A standard USA shower is normally 2.5 gpm.  We can describe all the heaters and their heating capabilities.


Whole House Heaters, showers, wash machines, sinks.
Bosch PowerStar AE125  27 KW Heater, 240 volts, 3x40 amp circuit breakers.

Bosch PowerStar AE115  17 KW Heater, 240 volts, 2x40 amp circuit breakers.
(The AE 115 requires 60+ inlet water temperatures.)

Point of Use Water Heater: Sinks, Dishwashers, low flow shower.
Bosch PowerStar AE12  12 KW Heater, 240 Volts, 1 x 50 amp circuit breaker.  ( RP12 )

Point of Use Water Heaters, Sinks and Dish washers:
Bosch PowerStar AE9.5  9.5 KW Heater, 240 volts, 1 x 40 amp breaker   ( RP9 )

Bosch PowerStar AE7.2  7.2 KW Heater, 240 volts, 1 x 30 amp breaker  ( RP7 )

Bosch PowerStar AE3.4  3.4 KW Heater, 120 volts, 1 x 30 amp breaker  ( RP3 )

The Key to using Tankless Heaters is understanding how they work, how they heater water, their capabilities and their electrical requirements.  With these parameters all being met, the heater will work as advertised and produce the water temperatures needed.

Call us for your tankless water heater discussion.

866-360-9830
info@flowfactor.com

www.flowfactor.com


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