On-Demand Water Heaters and Boilers
  • On demand means there is no costly storage of a large volume of hot water.
  • Heats 240 gallons of water per hour @ 60 F    temperature rise,  3.0 gpm @ 80 F T.
  • Never run out of hot water again!
  • Save hundreds of dollars per year with fuel savings. 96% efficiency.
  • Stainless steel heat exchanger.
  • Compact design allows for flexibility of installation location.
  • 2 installation options, direct-vent or conventional chimney.
  • Radiant Floor, radiators, hydro-air, and more heating systems.








Oil Type

1k-Kerosene, #1 Stove Oil, or #2 Fuel Oil.

Electrical Supply & Power Use

      AC 120V, 60Hz      120W-Ignition, 98W-Operating


88% (AFUE)

90%, 83% (AFUE)

Heating Capacity

148,000 BTU/h

Oil Consumption

1.05 gal. / h

System Application

Instantaneous On-Demand DHW Heater

Instantaneous On-Demand DHW Heater, and Hydronic Heating System

Dimensions (W x H x D)

12 5/8’’   X  27  3/4’’   X   22 1/2’’

Maximum Temperature

155 F

176 F


86 lbs (empty)

81 lbs (empty)

Required Accessories


Oil tank, In-line oil filter, and 3/8’’ copper oil line (purchased locally)

Pressure and temperature safety relief (included with unit)

Direct-vent kit, or 5’’ Chimney Adapter Kit 


Oil Supply

Gravity feed from an external tank. An optional Fuel Lifter Pump is available