OME 620-D-PV Tankless Whole House Water Heater  (MODEL 2009 Manufactured starting June 29 -2008 -up)
Fuel type:	Natural Gas (NG) or Propane (LPG)
Exhaust:	Direct power vent, horizontal or vertical ventilation.
Water Controls:	Computer controlled to limit the maximum overall water flow for the capacity of the unit. The individual volume is controlled by your faucets.
Gas Controls:	Computer controlled to control the temperature. A three stage gas valve controls the necessary gas to maintain the desired temperature set in the wired remote controller.
Power:	Min 18,000 BTU Max 144,000 BTU
Efficiency:	87% to 88% (depending on the volume of water used in one cycle, the longer the cycle, the higher the efficiency)
Capacity:	Min: 0.7 Gallons (One of the lowest in the industry!) Max: 5.5 Gallons of hot water at 120F (combined with cold water at faucet, it's enough hot water supply for two LEGAL showers running in the same time.)
Ignition:	Electronic two stage control, Advanced Ion Technology. No pilot light to waste fuel! The unit is powered by a standard 110 volt wall outlet.
Safety:	The entire unit is completely insulated. Space Age insulation technology used to maintain the unit body cold. Because of this, no ventilation space is required around the unit. The ignition is computer controlled. If any misfires occur, the unit detects this malfunction and shuts down to prevent damage. The unit include a over-temperature sensor, which will shutdown the unit in case it overheats. The water intake is fitted with an overpressure release valve and a screen filter, both of which protect your investment. The entire heat exchange core is manufactured out of oxygen free copper for better heat conductivity and longer life. No soldering material is used in this unit. Under pressure welding technology is used. The entire burner and exhaust systems are manufactured out of stainless steel. The unit has a electric heater to protect it against freezing damage down to 0 F.
Clearances:	Water-heater body top: 18" to facilitate the water connections Water-heater body sides: 1" Water-heater body front: 3 " Underneath Water-heater: 3" to facilitate the gas connection. Note: The water heater body never exceeds 100F on any surface point regardless of the amount of time that it was on.
Dimensions:	Water inlet: ¾ inch (on the top, same as your existing tank) Water outlet: ¾ inch (on the top, same as your existing tank) Gas inlet: ½ inch (on the bottom of the unit) Exhaust flue: Power vent for horizontal or vertical Unit weight: 38.5 pounds Complete unit: 26" X 15" X 6.5" Transport box: 30" X 17" X 11"

* System uses special exhaust flues, which can be purchased here.