Did you consider going with instant hot water at the sink/basin/shower/bath? My house is also relatively small and has little room for a huge hot water tank.

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nothercastle 12 hours ago | parent [-]

That can’t practically be done electronically. Needs to be gas. The power demand is too high for electric water heating

	▲	adaml_623 11 hours ago \| parent [-]
		Original comment mentioned £ so they are in the UK. It's possible and not super uncommon to have electric showers in the UK because the 230V provides enough power for water heating unlike the US. I'm currently investigating options for kitchen sinks and such. It feels quite silly to have a long length of pipe leading from a central source for a small amount of warm water to wash my hands.