RD-G20 (20GPH) Gas Unit Specs

RunDry’s RD-G20, 20gph RunDry Evaporators™ are a very efficient alternative for disposing of the wastewater from your industrial facility. This unit can be operate for about $0.08USD/gallon or $0.02USD/liter, this is a significant saving if you are paying for a waste hauler to take your wastewater away!

Model No: RD-G20
Evaporation Rate: 20 GPH (76 L/hr)
Heat Source: Gas or LPG
Energy Consumption: 200,000 BTUs
Electrical Draw: 120V, 20A
Dimensions (l x w x h): 100″ x 48″ x 52″ (254cm x 122cm x 132cm)
Weight: 3500 lbs. (1588 KG)
Heater Controls: Thermostat
Steam Exhaust Fan: Draft Induction, 70CFM
Exhaust Duct Size: 8″ Dia.
Tank Capacity: 225 gal. (852L)
Construction: Stainless Steel
Heating Chamber: Insulated


  • Auto-fill pump and controls
  • Chloride Resistant Alloy
  • Lift-out Sludge Tray

Download Cost Savings Sheet


  • RunDry intentionally for maximum waste disposal
  • Rapid Return On Investment (ROI), click for more on savings
  • Minimal operator interface
  • Multiply layers of safety features
  • No Drain Line Needed
  • Super thick high-temperature insulation makes the sides and top edge cool to the touch

RD-G20 RunDry Evaporators™ have been used to dry out the sludge off the bottom of settling tanks, for large machine shops, for wastewater from lotion manufacturer, military vehicle wash water, vehicle wastewater for fleet wash. Click here for many more applications.

The large evaporation tank holds 225 gallons or 853 liter but even that is not limiting if you get the very popular option to add the autofill feature. These RunDry Evaporators run most efficiently when they are equipped with this autofill option. You accumulate your wastewater in a surge tank and the autofill just keeps topping off the RunDry Evaporator™. It’s your choice if you wish to operate the units in the batch mode or the autofill mode.

The RD-G20 RunDry Evaporators™ has an evaporation rate of 20 gallons per hour or 76 liters per hour. This is based on clean water at ambient temperature. Please note that clean water evaporates at 212deg;F or 100°C, however as you introduce waste products to your water it can alter the boiling point. It is simple to adjust the operating temperature to accommodate your wastewater, but you should be aware that it may have a slight impact on your evaporation rate.