The CH-Series of portable heaters from Temp-Air are designed for versatility with higher discharge temperatures and comparatively low air capacities. Available from 300,000 to 1-million Btu per hr, these units are well suited for loose enclosures such as under concrete deck pours and spot heating applications. Installed either inside or outside, all CH-Series heaters draw 100-percent fresh air through the intake, and discharge tempered air controlled by a remote thermostat, while automatically cycling from low- to high-fire to maintain the desired temperature.