13-11-2018, 09:58 PM
Hi Gary
300 watts from a charging dynamo at say 13.5 volts would be 22 Amps, which I suspect will put rather a strain on an A7 dynamo. Contrast this with a typical car heater of the water powered type which might be 5 kW or more.
I can't help feeling that it will be about as effective as pouring a kettle full of boiling water into an unheated swimming pool before taking a winter dip !
Maybe try some rechargeable battery electric powered boots and gloves designed for motorbike riders ?
Cheers, John
300 watts from a charging dynamo at say 13.5 volts would be 22 Amps, which I suspect will put rather a strain on an A7 dynamo. Contrast this with a typical car heater of the water powered type which might be 5 kW or more.
I can't help feeling that it will be about as effective as pouring a kettle full of boiling water into an unheated swimming pool before taking a winter dip !
Maybe try some rechargeable battery electric powered boots and gloves designed for motorbike riders ?
Cheers, John