I brew in my kitchen all the time. I use a 28L electric urn and maxi-BIAB for 5 gallon batches and more (I do a kind of partigyle hybrid to make an IPA of 8 liters and a Stout/porter of 15 liters from the same mash).
Electric urns are more popular here in Europe from what I gather, and I cannot recommend the combination with BIAB enough. Simple and smart.
There is even a Danish company that sells a kit for this practice:
But of course these are made for 230v and 1800W.
The urn itself:
This is a PoorMansBraumeister