Abstract: A hollow cylindrical tubing passing a coolant, a generally V-shaped trough having at the apex thereof a mating semicylindrical surface for engaging said cylindrical tubing and the V-shaped trough disposed about 40.degree. from each other or 20.degree. angularly from a mid-plane of the trough, linkage means for moving the V-shaped trough through an angle that follows an east-to-west path of the sun and maximizing the collection of solar energy and programming means repetitively on a daily term for positioning said V-shaped trough to a start position commencing movement of said V-shaped trough from east-to-west following the sun and terminating said movement for subsequent positioning said V-shaped trough to said start position.

Abstract: A fireplace system comprising a grate consisting of a plurality of parallel hollow members for holding logs having a rear header in communication with the hollow member for supplying fresh air to be passed through the hollow tubular members. The tubular members have discharge apertures therein for supplying air to support combustion. The front of the tubular members are provided with a header in communication with a muffler system for discharging heated air into a room.