11.5 kW 16Â¡ 10Â¡ Used with large spas and hot tubs or in situations that need fast rise rates. 6 kW 8Â¡ 5Â¡ Keeps water hot during use even in winter. 1.5 kW 2Â¡ 1.25Â¡ When the cover is off, water looses heat faster than the heater supplies it. The water cools quickly.
Previsualization (also known as previs, previz, pre-rendering, preview or wireframe windows) is a function to visualize complex scenes in a movie before filming. It is also a concept in still photography. Previsualization is applied to techniques such as storyboarding, either in the form of charcoal drawn sketches or in digital technology in the planning and conceptualization of movie scenery make up.
Preen is a herbicide that is used to prevent weed seed germination. It will also prevent germination of desired seeds. As the label for Preen advises, the effects last up to three months, so desirable seeds may be planted after that time period. Keywords: Preen, weeds, seed germination.