Lighting the rocket mass heater

Lighting the rocket mass heater

    Today we pushed on, built a brick support around the base of the firebrick burner, – above, and then backfilled all the gaps with perlite and a clay mix to thoroughly insulate the fire itself, which we want to burn as hot as possible. The clay mix...
Rocket mass heater progress

Rocket mass heater progress

  Having tried (and failed) to get clay soil cleaned up enough to make smooth clay mortar, I just went out and  bought some clean clay, which was thirty quid well spent, and allowed the burner for the rocket mass heater to get built. Several of you will be...
Making a start on the rocket mass heater

Making a start on the rocket mass heater

Now that we’ve the outside of the build done, (regular readers will realise that there is something of a gap here, but don’t worry its coming soon), we are turning our attention to the rocket mass heater that is going to keep the space warm. For those who...
Turning up the heat

Turning up the heat

This is a rocket mass heater – the way in which we will be heating our crowdfunded ecobuild.  It is an incredibly efficient way to burn woodfuel, and extracts the maximum amount of heat energy from the fire. The flue gases heat a big cob bench, which then...