Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: john larkin Newsgroups: sci.electronics.design Subject: Re: Product idea Date: Wed, 12 Feb 2025 10:43:53 -0800 Organization: A noiseless patient Spider Lines: 28 Message-ID: References: <67ab9473$15$1783$882e4bbb@reader.netnews.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Injection-Date: Wed, 12 Feb 2025 19:39:08 +0100 (CET) Injection-Info: dont-email.me; posting-host="da9f3ded417f542f8641c309b2089794"; logging-data="2585155"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX19zypy3KaSLQ0ErFnLHP56V" User-Agent: ForteAgent/8.00.32.1272 Cancel-Lock: sha1:n29raJUBBq394yau7FtOP/8XX8A= Bytes: 2298 On Wed, 12 Feb 2025 18:27:09 -0000 (UTC), bp@www.zefox.net wrote: >Carlos E.R. 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 It doesn't say what the fuel source is. Does it burn gas, or is it an electrically powered heat pump?