Event and Party Hire Christchurch | Christchurch Wedding Hire › Water urn Image 1 of 1 Water urn $35.00 Water UrnElectric hot water urn, twelve liters - or 48 cups. Takes 30mins to heat from cold to scolding hot being full. Add To Cart Added! Water UrnElectric hot water urn, twelve liters - or 48 cups. Takes 30mins to heat from cold to scolding hot being full.