1. Introduction
Thank you for choosing the MONZANA GH4500 Gas Heater. This manual provides essential information for the safe and efficient operation, setup, and maintenance of your gas heater. Please read all instructions carefully before use and retain this manual for future reference.
The MONZANA GH4500 is a powerful 4200W gas heater designed to provide comfortable warmth in well-ventilated indoor spaces such as workshops, garages, or garden sheds. It features three heat settings, piezoelectric ignition, and multiple safety mechanisms.

Image 1.1: MONZANA GH4500 Gas Heater with its protective cover, shown in a workshop setting.
2. Consignes de sécurité
AVERTISSEMENT : Une installation, un réglage, une modification, une réparation ou un entretien incorrects peuvent entraîner des blessures ou des dommages matériels. Veuillez lire attentivement les instructions d’installation, d’utilisation et d’entretien avant d’installer ou d’entretenir cet équipement.
- Ventilation is Crucial: This heater is designed for use in well-ventilated indoor spaces only. Never use this heater in unventilated areas, bedrooms, or sleeping areas. Ensure adequate fresh air supply to prevent carbon monoxide accumulation.
- Type de gaz : Use only propane and/or butane gas cylinders up to 13 kg. Ensure the gas regulator and hose are compatible with your local gas supply standards. The included hose and regulator are standard for DE, AT, CH, and SK. For other countries, appropriate accessories may be required.
- Caractéristiques de sécurité : The heater is equipped with an integrated Oxygen Depletion Sensor (ODS), a pressure reducer, tilt protection, and overheat protection. Do not bypass or modify these safety features.
- Autorisation: Maintain a safe distance from flammable materials (curtains, furniture, paper, etc.). Do not place objects on or near the heater.
- Stabilité: Ensure the heater is placed on a stable, level surface. The integrated wheels are for mobility, not for operation on uneven ground.
- Enfants et animaux domestiques : Keep children and pets away from the heater during operation and while it is cooling down. The safety grid protects against direct contact with the ceramic plates, but surfaces can still be hot.
- Stockage: Store gas cylinders in a well-ventilated area, away from heat sources and direct sunlight. Disconnect the gas cylinder when the heater is not in use for extended periods.
- Entretien: Effectuez uniquement l'entretien décrit dans ce manuel. Pour les réparations complexes, contactez un technicien qualifié.

Image 2.1 : Terminéview of the heater's maximum safety features, including the safety grid, tilt and overheat protection, integrated oxygen depletion sensor (ODS), and pressure reducer.
3. Contenu du colis
Vérifiez que tous les articles sont présents et non endommagés lors du déballage :
- 1x MONZANA GH4500 Gas Heater
- 1x Gas hose (50 cm)
- 1x Gas pressure regulator (50 mbar)
4. Installation
Follow these steps to set up your gas heater:
- Déballer: Carefully remove all packaging materials and inspect the heater for any damage.
- Positionnement : Place the heater on a firm, level surface in a well-ventilated indoor area. Ensure adequate clearance from walls and flammable objects.
- Installation de bouteilles de gaz : Open the rear compartment of the heater. Place a gas cylinder (up to 13 kg, propane/butane) inside the designated area.
- Connect Regulator and Hose: Attach the gas pressure regulator to the gas cylinder valve. Then, connect the 50 cm gas hose to the regulator and the heater's gas inlet. Ensure all connections are tight and secure.
- Test d'étanchéité : Before first use and after every gas cylinder change, perform a leak test using soapy water. Apply soapy water to all gas connections. If bubbles appear, there is a leak. Tighten connections or replace faulty parts. Never use an open flame to check for leaks.

Image 4.1: Illustration of the gas bottle compartment and the connection of the 50 cm gas hose with pressure regulator, suitable for liquid gas bottles up to 13 kg.
5. Mode d'emploi
To operate your MONZANA GH4500 Gas Heater:
- Alimentation en gaz ouverte : Ouvrez lentement la vanne de la bouteille de gaz.
- Allumage: Turn the control knob to the desired heat level (1, 2, or 3) and press the piezoelectric ignition button repeatedly until the ceramic plates ignite. You should see a flame across the ceramic plates.
- Régler le niveau de chaleur : The heater offers three power levels: 1.5 kW, 2.9 kW, and 4.2 kW. Adjust the control knob to select the desired heat output.
- Surveillance: Always monitor the heater during operation. Ensure proper ventilation is maintained.
- Fermer: To turn off the heater, first close the valve on the gas cylinder. Allow the remaining gas in the hose to burn off until the flame extinguishes. Then, turn the control knob to the 'OFF' position.

Image 5.1: The heater is quickly ready for use and adjustable, featuring piezoelectric ignition and three heat levels (1.5 kW, 2.9 kW, 4.2 kW) for individual temperature regulation.
6. Entretien
Regular maintenance ensures the longevity and safe operation of your heater:
- Nettoyage: Ensure the heater is completely cool before cleaning. Wipe the exterior surfaces with a damp cloth. Do not use abrasive cleaners or solvents. The ceramic plates can be gently wiped with a damp tissu.
- Inspection: Periodically check the gas hose and connections for signs of wear, cracks, or damage. Replace any damaged components immediately.
- Stockage: When not in use for extended periods, disconnect the gas cylinder and store the heater in a dry, dust-free location. The heater's robust construction and coated surface are designed for durability.
7. Dépannage
Si vous rencontrez des problèmes avec votre chauffage, consultez les problèmes et solutions courants suivants :
| Problème | Cause possible | Solution |
|---|---|---|
| Le radiateur ne s'allume pas. | Bouteille de gaz vide ou vanne fermée. Gas connections loose. Ignition electrode dirty or faulty. | Check gas cylinder level and open valve. Tighten all gas connections and perform leak test. Contact service for inspection. |
| Flame goes out during operation. | Ventilation insuffisante (ODS activé). Gas cylinder running low. Tilt protection activated. | Ensure adequate ventilation. Move to a more ventilated area. Remplacez la bouteille de gaz. Ensure heater is on a stable, level surface. |
| Odeur de gaz. | Fuite de gaz. | Immediately turn off gas supply at the cylinder. Ventilate the area. Perform a leak test. Do not operate the heater until the leak is resolved. |
Si le problème persiste après avoir essayé ces solutions, contactez le service client.
8. Spécifications
| Fonctionnalité | Détail |
|---|---|
| Numéro de modèle | GH4500 |
| Marque | Monzana |
| Dimensions (L x l x H) | 42 x 38 x 72 cm |
| Poids | 8.15 kg |
| Matériel | Acier avec revêtement en poudre |
| Couleur | Noir/Anthracite |
| Niveaux de chaleur | 3 (1500 W, 2900 W, 4200 W) |
| Élément chauffant | 3 Ceramic plates |
| Type d'allumage | Piézoélectrique |
| Type de gaz | Propane and/or Butane |
| Max. Gas Cylinder Size | 13 kg |
| Longueur du tuyau de gaz | 50 cm |
| Régulateur de pression | 50 mbar (included) |
| Caractéristiques de sécurité | Oxygen Depletion Sensor (ODS), Overheat Protection, Tilt Protection, Flame Failure Device, Safety Grid |
| Mobilité | 4 Castor wheels, Side handles |
| Utilisation recommandée | Ventilated indoor spaces (garage, workshop, garden shed, camp(en) |

Image 8.1: Product dimensions: 72 cm height, 42 cm length, 38 cm width.

Image 8.2: Technical data summary, including dimensions, material, heat levels, ceramic plates, ignition type, and gas bottle compatibility.
9. Garantie et assistance
Pour toute information relative à la garantie ou pour obtenir une assistance technique, veuillez consulter les documents d'achat ou contacter votre revendeur. Conservez votre preuve d'achat pour toute réclamation au titre de la garantie.





