Central Heating Units

DryAir 1800 CHU — Tri-Fuel Configuration

The DryAir 1800 CHU supplies heated fluid to hydronic heating, thawing and drying equipment. The tri-fuel configuration accepts diesel, natural gas or propane through the appropriate interchangeable burner. Its published diesel input is 1,792,000 BTU/h, delivering 1,523,200 BTU/h of heat; gas and propane have separate published ratings. An atmospherically vented circulation circuit, automatic bypass protection and central pump/temperature controls support modular jobsite heating.

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Estimated equipment rental only. Delivery, taxes and applicable fees quoted separately. Final pricing confirmed with dispatch.

Specifications

Equipment

Manufacturer
DryAir
Model
1800 CHU — Tri-Fuel Configuration

Equipment specifications

Diesel heating input
1,792,000 BTU/h
Diesel heating output
1,523,200 BTU/h
Fuel capability
Diesel, natural gas or propane; burner change required
Natural-gas heating input / output
1,690,000 / 1,352,000 BTU/h
Propane heating input / output
1,715,000 / 1,372,000 BTU/h
Electrical supply
230 V, single-phase, 60 Hz, 30 A
Maximum diesel consumption
12.8 US gal/h
Maximum natural-gas consumption
1,577 cu ft/h
Maximum propane consumption
18.7 US gal/h
Fluid temperature range
130–180°F
Heat-transfer fluid
Non-toxic propylene-glycol/water mixture
Heat exchanger
Water-jacket/fire-tube type
Fluid circulation
Atmospherically vented, low-pressure system
Primary supply and return
2-in lines, ball valves and Kamlok quick couplings
Circulation pump
3 HP, 3,500 rpm, 110 US gpm at 30 psi
Fluid protection
Automatic pressure bypass and temperature bypass
Handling
Forklift pockets
Burner type
Two-stage
System monitoring
Seven-light indicator system
Published unit weight
3,840 lb

Equipment Details

Capabilities & Features

  • Tri-fuel capability with burner exchange
  • Atmospherically vented fluid circuit
  • Automatic pump-pressure bypass
  • Heat-exchanger temperature bypass
  • Central temperature and pump controls
  • Forklift pockets

Available Options

  • Fuel-specific burners
  • Lifting frame
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