Raytherm® Water Heaters, 514-824

BASIC DATA

Model Number	Full Input in (BTUH)	Flue Dia.
WH-514	511,500*	10"
WH-624	627,000*	12"
WH-724	726,000*	12"
WH-824	825,000*	14"

*Propane input is 94% of stated value.

Available Firing Modes

WH1	On-off
WH2	Mechanical modulation, setpoint 110F-170F
WH3	2-Stage
WH9	4-Stage

Features:

• Rugged All-Brass Headers
  Resist corrosion, and are easily removed for inspection or service.  AB 1953 compliant. 
• Brass Headers with Copper Finned Tube Heat Exchanger
  Single bank, straight through design delivers lowest pressure drop. Integral fins have ten times the heat transfer surface of plain tubes.
• Indoor or Outdoor Installation.
• Gas-lined Cast-iron Headers and Cupro-nickel Tubes Available as Options.
• Corrosion Resistant Steel
  Fittings are brush galvanized against rust. Heat shields are corrosion-resistant steel. Jacket has Polytuf powder coat finish
• 24-Volt Controls
  Are totally enclosed for protection. Door is easily removed for inspection and service.
• Floating Return Header
  Immunizes heat exchanger to thermal shock.
• Tube Sheet and “O” Ring Construction
  Eliminates the repair and maintenance problems associated with rolling tubes directly into a casting.
• Interlocking Refractory Panels
  Sealed corners reduce radiation losses.
• Stainless Steel Burners
  Maintain precise combustion at all firing rates, burn quietly and won’t clog or corrode.
• Slide-out Burner Tray
  Allows easy inspection and service.
• Spark-to-Pilot Ignition
  The most dependable ignition method available.
• Available for Natural Gas or Propane.