Design Dynamics VTD-18N-JHB Gas Heater user manual




Models VTD-18N-JHB, vtd-24n-jhb and vtd-30n-jhb

These logs are approved by the manufacturer for installation in listed indoor and outdoor solid fuel burning fireplaces. See warranty for additional information.

WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life.

Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.


Do not try to light any appliance.

Do not touch any electrical switch; do not use any phone in your building.

Immediately call your gas supplier from a neighbors phone. Follow the gas suppliers instructions.

If you cannot reach your gas supplier, call the fire department.

Installation and service must be performed by a qualified installer, service agency or the gas supplier.

INSTALLER: Leave this manual with the appliance

CONSUMER: Retain this manual for future reference.

Table of Contents


Local Codes...


Product Identification...



Cleaning and Maintenance...


Replacement Parts...

Service Hints...

Technical Service...


WARNING: Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage.

Refer to this manual for correct installation and operational procedures. For assistance or additional information consult a qualified installer, service agency or the gas supplier.

WARNING: This appliance is for installation only in a solid-fuel burning masonry or

UL127 factory-built fireplace, constructed of noncombustible material and connected to a working flue. (See page 6 for minimum flue opening.)

WARNING: This is a gasfired heater. It uses air (oxygen) from the room in which it is installed. Provisions for adequate combustion and ventilation air must be provided. Refer to the

National Fuel Gas Codes, ANSI

Z233.1/NFPA 54, Air for Combustion and Ventilation.

This appliance may be installed in an aftermarket,* permanently located, manufactured (mobile) home, where not prohibited by local codes.

This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not convertible for use with other gases.

* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer

WARNING: This product contains and/or generates chemicals known to the State of California to cause cancer or birth defects or other reproductive harm.

WARNING: Keep flue open when operating unit.

State of Massachusetts: The installation must be made by a licensed plumber or gas fitter in the Commonwealth of



IMPORTANT: Read this owners manual carefully and completely before trying to assemble, operate or service this log set.

Improper use of this log set can cause serious injury or death from burns, fire, explosion, electrical shock and carbon monoxide poisoning.

WARNING: Do not allow fans to blow directly into the fireplace.

Avoid any drafts that alter burner flame patterns.

DANGER: Carbon monoxide poisoning may lead to death!

Do not place clothing or other flammable material on or near the appliance. Never place any objects on the heater.

Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning resemble the flu, with headaches, dizziness or nausea. If you have these signs, the log set may not be working properly. Get fresh air at once! Have log set serviced. Some people are more affected by carbon monoxide than others. These include pregnant women, people with heart or lung disease or anemia, those under the influence of alcohol and those at high altitudes.

Natural Gas: Natural gas is odorless. An odor-making agent is added to the gas. The odor helps you detect a gas leak. However, the odor added to the gas can fade. Gas may be present even though no odor exists.