PERCY DOUGHTY COAL SAVER SET 1 BACK BRICK +2 SIDE CHEEKS FOR 16 INCH OPEN FIRES

, When you say the, 'back brick is approx. 23cm long and 16cm wide', do you mean 23cm width and 16cm height? (Are long and wide are the same thing?)

how high are this bricks please?

WHAT ARE THE SIZE OF EACH BRICK?

can these be used in a fire with a back boiler