MediumRoastSteam The theoretically correct answer is that you need to build a transfer switch which disconnects all circuits from the public supply, and connects specific circuits to a supply powered by the generator. What I will do in practice… will be safe although not to code, but I won’t describe it here just in case NICEIC sends a contract killer my way.
If you don’t want to install a transfer switch (which is a fair amount of cost and work - not to mention needing space near the consumer unit, which not everybody will have), then you need to have extension leads and run them to the sockets of the generator - again, this may entail a few bits of wiring particularly if you intend to run the CH/HW from it.
Cuprajake Possibly. Hence my semi-ironic note re: paranoia. The idea is to have emergency power available for heating/HW (if the gas supply isn’t interrupted/rationed as well), internet/comms, fridge/freezer and basic lighting. If the outages happen, and they are reasonably well planned and for a 3 hour duration, it’s probably overkill and “paranoia”. Given the political gyrations (incl. domestically on the ‘energy cap’ and Russia digging in for the winter internationally), I’m not sure that if outages happen they will be quite as well planned or with duration limited to 3 hours.
