http://www.ebuild.com/article-list/hvac/high-velocity-mini-duct-systems.hwx http://www.ebuild.com/images/header/ebuild-logo-small.gif http://www.ebuild.com/ Articles Listing en-us 2008-07-25T11:50:43-04 http://www.ebuild.com/articles//587254.hwx Marley Engineered Products has released a new series of compact freeze protection heaters under the Berko and Qmark brands. Rated at 2,500 W, Models PHFP25 and CHPR25 are designed for installation in concealed spaces including crawl spaces, plenum spaces, and areas between finished ceilings and drop ceilings. They include thermostat range of 40-90 degrees F; enclosed, permanently lubricated fan motors; and fan-delay feature, which eliminates cold-air circulation at start-up. Measuring 14 x 12 in., heaters are crafted from 18 ga steel and protected from corrosion by gray, polyester powder-coat finish. <br/><br/><a href="http://www.ebuild.com/articles//587254.hwx"><img title="" src="http://imgs.ebuild.com/cms/ebuild/2007/44403/heater.jpg" width="110" height="80" /></a> http://www.ebuild.com/articles//404410.hwx <br/><br/><a href="http://www.ebuild.com/articles//404410.hwx"><img title="" src="" width="110" height="80" /></a> http://www.ebuild.com/articles//404411.hwx <br/><br/><a href="http://www.ebuild.com/articles//404411.hwx"><img title="" src="" width="110" height="80" /></a>