1. Introdución
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. Instrucións de seguridade
ADVERTENCIA: Unha instalación, un axuste, unha alteración, unha revisión ou un mantemento incorrectos poden causar lesións ou danos materiais. Lea atentamente as instrucións de instalación, funcionamento e mantemento antes de instalar ou realizar a revisión deste equipo.
- 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.
- Tipo de gas: 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.
- Características de seguridade: 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.
- Liquidación: Maintain a safe distance from flammable materials (curtains, furniture, paper, etc.). Do not place objects on or near the heater.
- Estabilidade: Ensure the heater is placed on a stable, level surface. The integrated wheels are for mobility, not for operation on uneven ground.
- Nenos e animais: 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.
- Almacenamento: 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.
- Mantemento: Realice o mantemento só segundo o descrito neste manual. Para reparacións complexas, póñase en contacto co persoal de servizo cualificado.

Imaxe 2.1: Acabadoview of the heater's maximum safety features, including the safety grid, tilt and overheat protection, integrated oxygen depletion sensor (ODS), and pressure reducer.
3. Contido do paquete
Verifique que todos os elementos estean presentes e sen danos ao desembalar:
- 1x MONZANA GH4500 Gas Heater
- 1x Gas hose (50 cm)
- 1x Gas pressure regulator (50 mbar)
4. Configuración
Follow these steps to set up your gas heater:
- Desempaquetar: Retire con coidado todos os materiais de embalaxe e inspeccione o quentador para ver se presenta algún dano.
- Posicionamento: Place the heater on a firm, level surface in a well-ventilated indoor area. Ensure adequate clearance from walls and flammable objects.
- Gas Cylinder Installation: 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.
- Proba de fugas: 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. Instrucións de funcionamento
To operate your MONZANA GH4500 Gas Heater:
- Abrir subministración de gas: Slowly open the valve on the gas cylinder.
- Ignición: 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.
- Axustar o nivel de calor: 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.
- Seguimento: Always monitor the heater during operation. Ensure proper ventilation is maintained.
- Apagar: 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. Mantemento
Regular maintenance ensures the longevity and safe operation of your heater:
- Limpeza: 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 pano.
- Inspección: Periodically check the gas hose and connections for signs of wear, cracks, or damage. Replace any damaged components immediately.
- Almacenamento: 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 Solución de problemas
Se tes problemas co teu quentador, consulta os seguintes problemas e solucións comúns:
| Problema | Causa posible | Solución |
|---|---|---|
| O quentador non se acende. | Cilindro de gas baleiro ou válvula pechada. 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. | Insufficient ventilation (ODS activated). Gas cylinder running low. Tilt protection activated. | Ensure adequate ventilation. Move to a more ventilated area. Substitúe a bombona de gas. Asegúrate de que o quentador estea sobre unha superficie estable e nivelada. |
| Cheiro a gas. | Fuga de gas. | 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. |
Se o problema persiste despois de intentar estas solucións, póñase en contacto co servizo de atención ao cliente.
8. Especificacións
| Característica | Detalle |
|---|---|
| Número de modelo | GH4500 |
| Marca | Monzana |
| Dimensións (L x W x H) | 42 x 38 x 72 cm |
| Peso | 8.15 kg |
| Material | Aceiro revestido en po |
| Cor | Black/Anthracite |
| Niveis de calor | 3 (1500 W, 2900 W, 4200 W) |
| Elemento calefactor | 3 Ceramic plates |
| Tipo de ignición | Piezoeléctrico |
| Tipo de gas | Propane and/or Butane |
| Max. Gas Cylinder Size | 13 kg |
| Lonxitude da mangueira de gas | 50 cm |
| Regulador de presión | 50 mbar (included) |
| Características de seguridade | Oxygen Depletion Sensor (ODS), Overheat Protection, Tilt Protection, Flame Failure Device, Safety Grid |
| Mobilidade | 4 Castor wheels, Side handles |
| Uso recomendado | Ventilated indoor spaces (garage, workshop, garden shed, camping) |

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. Garantía e soporte
For warranty information or technical support, please refer to the purchase documentation or contact your retailer. Keep your proof of purchase for any warranty claims.





