WP-155Q5 pump.

https://www.mitsubishi-kyw.co.th/Pro...-Pump/924.aspx

I have single storey house with 8 hot/cold mixer faucets. The pump gives plenty of pressure.

Have an electric boiler hot water heater. 100 liter.

???????????????????????????? ???? EHS | Stiebel Eltron

Thanks Norton for the info.