When it is minus 20 degrees outside, after a hard day's trekking breathlessly into thin air, a warm and comfortable night's accommodation is all important to help you rest and be ready for your big day.

It is one of the warmest buildings in the upper Khumbu and yet we save scarce fuel while keeping it warm. Combined with solar panels to provide electricity from the sun, we know we're being as kind as we can to Mother Earth.