When removing the grotty gas fire in our 1930's semi, we've discovered a really old cast iron Redfyre back boiler. I think this is the original solid fuel backboiler that woud have been used when the house was built, rather than a more modern one, and it was not attached to the gas fire. Its decomissioned - we no longer have a water tank and have a new combi boiler, so it can no longer be connected to anything. We'd like to install a new open fire in the fireplace, but we're totally unsure what to do with this thing. Its pretty big, looks heavy and is well fastened into the fireplace. I'm worried if we try to remove it the whole chimney could collapase. So my question is, is it possible to simply ignore it and install a new open fire in front of it? Or will we have to have it taken out in order to install a fire?