Below are some suggestions as to a suitable hot-water scheme of heating two rooms from one fireplace. The sketch shows a single line of pipe, which is all that can be shown on a plan drawing. There are, however, two pipes running in the direction shown, one at the ceiling level and the other along the floor skirting. Any ordinary grate can be fixed in the fireplace of the small room, but the fire-box should be of good size both in width and depth, as a large fire does better work than a small one and does it more economically. A suitable boiler should be placed at the back of the fire. Prom the top of the boiler carry a 1-in. flow-pipe, first up to within a few inches of the ceiling, then along as shown in the sketch to where the farthest radiator stands. Drop down to the radiator and then proceed along the skirting and connect up to the second radiator. The fireplace will heat the small room; while the large room, if there is no fire in it, will need two 25 ft. radiators in the coldest weather. The 1-iu. circulating pipe must rise from the boiler at least 1 in. in 10 ft., and it must have an equal fall from the farthest radiator to the boiler.

There must be a 3/4-in. expansion pipe at the highest point of the circulation (over the farthest radiator) and a small cold-water feed cistern somewhere above the highest point of the circulation, with a 1/2-in. feed pipe coming down and joining the return pipe at any point, or it can enter the boiler low down. There must be an air cock on each radiator.

Heating Two Rooms from One Fireplace.