Thanks for your choosing our properety during your upcoming to visit in Luang Prabang, We are not sure that you have maintion that no hot water heater, Actually we have in all the room in our property. for the Evain water we are accept that we are selling for 4$ /bottle because the cost quite expensive as it is a international import production. But we do offer free Miniral water, Tea & Coffee in the room as well.