One or more dispensing conveyances (1) have outlet apertures (2) or
conveying and dispensing heated water to surfaces of roofs (3) and other
structural surfaces selectively when ice and snow is being accumulated or
has accumulated thereon. The water is heated with an electric-resistance
(7, 10) or optionally with a fuel-flame heater (8, 11), which can be a
tank heater or a tankless geyser water heater. Electric-resistance members
can be positioned inside of heat-resistant tubular conveyances proximate
the outlet apertures. A programmable control unit (18) can be included for
programmable heat, flow rate and flow time.
