Raypak's new Hi Delta Space Saver fan-assisted boiler/water heater is available in sizes 100-399 Mbtu and has an 85 percent AFUE for residential boilers (sizes to 300 Mbtu). The unit's water heater thermal efficiency is also 85 percent. The Hi Delta SS meets all current and expected 2012 LoNOx regulations.

Raypak.  www.raypak.com.  Circle 12