Quote:
Originally Posted by oil pan 4
I have already tried this.
A low wattage block heater uses a lot more power to reach the same temperature as the large one.
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Indeed, you are totally right. With a small heater the rate of heat gain is considerably affected by the rate of heat loss to the surrounding freezing environment, making the overall duration much longer and resulting in more electricity/power used.
The electric water pump is probably the best solution.
Doax, can you share the pump power (W)? It should be fairly low power, so negligible running costs, right?
I'm very interested in your findings about the coolant life expectancy given the localized boiling, although based on the manufacturers' responses so far, we may never know the truth.
I'm assuming anyone using a grille block will also run into a similar situation, making coolant fluid changes needed sooner than scheduled, right?