E-CORNER •GMH-04D •SAND GOLD

PORTABLE DIESEL AIR HEATER WITH THERMOELECTRIC POWER SUPPORT

3.8 L Tank •9 Heat Levels •LCD and Remote Control

OUTDOOR HEATER PLACEMENT REQUIRED. NEVER OPERATE THE HEATER OR EXHAUST SYSTEM IN AN ENCLOSED, POORLY VENTILATED OR SLEEPING SPACE.
E-Corner GMH-04D sand gold portable diesel air heater specifications and dimensions

Compact Ducted Heat for Stationary Cold-Weather Setups

The GMH-04D is a portable diesel-fired air heater designed for temporary ducted heating in outdoor work, field operations, emergency support, and stationary vehicle or temporary-structure setups. The heater unit and complete exhaust system must remain outdoors; only the separated warm-air duct may enter the occupied area.

GMH-04D diesel heater output fuel consumption voltage and operating temperature range

GMH-04D Specifications

Fuel / tankDiesel / 3.8 L built-in tank
Heat output800-3000 kcal/h across Levels 1-9
Fuel consumptionApprox. 0.10-0.38 L/h
Rated voltage / electrical use16.8 V DC / less than 40 W
Rated noiseLess than 65 dB
Main unit size / weight410 x 265 x 280 mm / 13 kg (approx. 28.66 lb)
Heater operating range-40°C to +40°C
Fuel-pump operating range-40°C to +50°C

Actual performance and fuel use vary with heat level, altitude, ambient temperature, diesel quality, installation and heater condition.

GMH-04D startup power and thermoelectric support sequence diagram

Startup Power First, Thermoelectric Support After Stable Ignition

  1. Provide startup power: use four charged supplied 26650A startup batteries or an approved 16.8 V DC source.
  2. Ignite and stabilize: keep the approved external source connected for at least five minutes after stable ignition when it is used.
  3. Normal support: after combustion is stable, the thermoelectric module converts heater heat into electrical support for operation.

Diesel fuel and startup electrical power are always required. Thermoelectric support does not mean unlimited, fuel-free or battery-free operation.

GMH-04D LCD controls nine heat levels and required shutdown cooldown sequence

Nine Heat Levels with LCD and Remote Control

Select Levels 1-9 using the control panel. The LCD displays operating state, level, temperature, voltage and fault information. One remote is included; the unit must remain visible to a responsible operator during remote use.

NORMAL SHUTDOWN: Press OFF and allow the fan to continue for approximately 3-5 minutes. Do not disconnect power or remove batteries until the fan stops and the LCD backlight turns off.
Outdoor diesel heater supplying ducted warm air to a winter camp setup Outdoor GMH-04D heater ducting warm air to a stationary work trailer GMH-04D outdoor heater installed beside a parked stationary RV

Stationary Outdoor Applications

Designed for temporary heat delivery to stationary setups used for outdoor work, field operations, emergency support, parked vehicles and temporary structures. Do not operate while a vehicle or vessel is moving. This heater is not for sealed, unvented or sleeping spaces.

Diesel heater carbon monoxide exhaust and outdoor placement safety instructions GMH-04D outdoor exhaust routing and warm-air separation safety diagram

Carbon Monoxide and Exhaust Warning

  • Keep the heater unit and complete exhaust system outdoors, upright and stationary.
  • Route exhaust downwind and away from doors, windows, vents, air intakes, people and combustible materials.
  • Never use inside a tent, RV, van, cabin, garage, boat cabin or other enclosed or poorly ventilated space.
  • Install a certified carbon monoxide alarm inside any occupied area receiving ducted warm air and test it regularly.
  • Follow the complete manufacturer manual, local codes and qualified installation guidance. Stop use immediately if exhaust odor, smoke, a CO alarm or abnormal operation occurs.
GMH-04D heater complete supplied accessory package list GMH-04D package contents including ducts batteries controller charger and exhaust parts Portable diesel heater unit ducts exhaust parts remote charger batteries and storage bag

Complete Supplied Package

Heater unit1Air ducts2
Exhaust heat shields2Air-duct insulation sleeves2
Remote controller1Battery charger1
26650A startup batteries4External power lead1
Exhaust pipe sections2Exhaust elbow / silencer1 each
Funnel1M3 hex key / storage bag1 each

Frequently Asked Questions

What is the tank capacity?
The built-in diesel tank holds 3.8 L.

How much heat output is listed?
The manufacturer-listed range is 800-3000 kcal/h across nine selectable levels.

Are startup batteries included?
Yes. The supplied package list includes four 26650A startup batteries and a battery charger.

Does self-generation eliminate the need for diesel or startup power?
No. Diesel and startup electrical power are required. Thermoelectric support begins only after successful ignition and stable combustion.

Can the heater be placed inside a tent, RV, van, cabin or workshop?
No. The heater and complete exhaust system must remain outdoors. Only correctly installed warm-air ducting may enter an occupied area.

Can it run while a vehicle is moving or while occupants sleep?
No. Operate only upright and stationary under responsible supervision. Do not use in sleeping spaces.

Product labels, the controller display and the manufacturer manual take priority if they differ from this description. Confirm installation, clearances, fuel, electrical supply, exhaust routing and local compliance requirements before operation.