Coolant heaters

same way your electric hot water heater works..

a heating element is screwed into the block, into one of the water passages.. you power it up, it heats the water and therefore the engine block too.
 
Rich said:
same way your electric hot water heater works..
Click to expand...

If the water is already hot, why do you need to heat it ? :flipoff2:
 
Futbalfantic said:
arnt there some that pump water around to warm the hole engine?
Click to expand...

Not necessary, as I had to explain to an engineer, Thursday,

A cooling system is a full system with the only air at the top of the radiator. If you heat the coolant at the block heater, JWH (jacket water Heater), chop heater (or whatever else you wanna call them) not only does that water heat up, but in turn the water (AF) touching it etc etc. Then as each of these are heating they in turn heat the metal they touch.

Cummins Power Gen uses a static WJH while one of our competitors uses a Pump system. It took me 45 minutes to explain to Einstein that if you constantly pump the fluid through the system, you are continually increasing the amount of fluid that is exposed to the air pocket at the top of the radiator, which is where the easiest path of heat loss is. Sooooo, it is actually more effective if the fluid isnt pumped but left static.
 
SkyHiK5 said:
Not necessary, as I had to explain to an engineer, Thursday,

A cooling system is a full system with the only air at the top of the radiator. If you heat the coolant at the block heater, JWH (jacket water Heater), chop heater (or whatever else you wanna call them) not only does that water heat up, but in turn the water (AF) touching it etc etc. Then as each of these are heating they in turn heat the metal they touch.

Cummins Power Gen uses a static WJH while one of our competitors uses a Pump system. It took me 45 minutes to explain to Einstein that if you constantly pump the fluid through the system, you are continually increasing the amount of fluid that is exposed to the air pocket at the top of the radiator, which is where the easiest path of heat loss is. Sooooo, it is actually more effective if the fluid isnt pumped but left static.
Click to expand...

X2, as he said the warm water is coming in contact with the air, which cools the water down... and also the cool water flowing around hte heating element has less contact time to that element, and therefore cant transfer the heat as well, and also cant transfer the heat to the block either as well...
 
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