A new brochure provides complete information on Bryan RV Series Boilers in eight standard sizes from 3.5 million to 8 million Btu/hr. These boilers are forced draft gas, oil or dual fuel fired. All feature Bryan's exclusive “Flexible Water Tube” design, which assures rapid internal circulation for maximum heat transfer and operating efficiency. Tubes are easily removable from one side and replaceable without welding or rolling. Little service space is required, only 32 inches for tube removal. Boilers carry a full non-prorated 25-year warranty protection against thermal shock.