Re: Product idea

Carlos E.R. <robin_listas@es.invalid> wrote:

 
Couldn't you burn gas, boil water, spin a generator to make
electricity, and heat your house with the condensate heat?
 
That would make free electricity.

 
Certainly, and it has a name. Combined cycle, or something similar. It
is a simple as running a diesel generator and heating the house with it
radiator, and a heat exchanger on the exhaust.

Long ago there was a residential product introduced:
https://hondanews.com/en-US/releases/honda-and-climate-energy-begin-retail-sales-of-freewatt-micro-chp-home-heating-and-power-system

Far as I know it failed commercially, but it's unclear what went wrong.
Capital cost might have been the stumbling block, as it surely would
be with a crypo-mining heater. A few kW of computers costs much more
than a few kW of nichrome wire resistance elements.

Thanks for reading,

bob prohaska