Crown Boilers
Energy efficient home heating solutions.
Designed for reliability, efficiency and performance. Temperature control, relay, and ignition functions in a single module. For residential and small commercial applications with approved chimney.
The benefits at a glance
- Cast iron heat exchanger
- Boiler easily field convertible to left side piping
- Built-in rear draft diverter to fit low spaces
- Controls located inside the jacket and easily accessible from the front of boiler.
- Eight sizes from 38 to 280 MBH
- Limited lifetime warranty
The Aruba 4 Series (AWR) residential, cast iron, hot water boiler is a fully-packaged, installer-ready product. The rear draft diverter provides a low profile design that allows for closet applications on AWR models through the AWR210. This atmospheric, gas-fired boiler is for use with a conventional chimney fueled with natural or LP gas. The Aruba 4 features a standardized Honeywell Intermittent Ignition System.
The Aruba 4 comes with an Integrated Boiler Control with temperature control, relay, and ignition functions in a single module. This includes an additional circulator output for a second heating zone or an indirect water heater like the Mega-Stor. All controls are located inside the front vestibule, creating a clean look and space efficient design. With the controls located in the front of the boiler and supply/return tappings on both the left and right side, the Aruba 4 has flexible installation options to fit most locations.
ARUBA 4

Designed with through-the-wall venting for homes without chimneys or where the chimney cannot be used. Temperature control, relay, and ignition functions in a single module. Includes additional circulator output for a second heating zone or an indirect water heater.
The benefits at a glance
- Cast iron heat exchanger and stainless steel burners
- Integral fan for sidewall venting
- Fiberglass insulation to minimize heat loss
- Designed for installation on combustible floors
- Six sizes from 61 to 229 MBH
- Limited lifetime warranty
The Bali Series (BWF) residential, cast iron, hot water boiler is a fully-packaged, installer-ready product. An integral fan permits venting directly through a wall. With the addition of a Category-1 Vent Kit, the Bali has the option of venting into some chimneys that are too small to vent an atmospheric boiler of the same input. The Bali Series is packaged with an electronic ignition system and has the option of either natural or LP gas.
Bali Series
