Mr. Heater MH25NG/LP, HS25NG/LP owner manual Heater Mounting Instructions

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•This heater may be mounted on any wall; however, it is recommended that the heater be mounted in the middle of the wall opposite any overhead doors.

•When selecting installation locations for this heater ensure that the opening of any exterior or interior doors or windows will not violate minimum clearances or contact any heater components.

•If an overhead door is installed in the build- ing, verify that the heater is not installed in such a way as to interfere with door operation and verify that the door in its open position will not reduce clearances below the minimum requirements. Never mount the heater in such a way that would position the heater above an opened overhead door.

•In most cases the infiltration around your unin- sulated entry doors and windows will provide enough air flow for efficient heater operation.

Unrestricted air flow during heater operation is essen- tial to prevent the area above the installed heater from overheating. If your workshop/utility building is tightly insulated (including windows, doors, openings, etc.) the following ventilating methods must be followed:

•A single exhaust vent is supplied with your heater for your convenience. This vent must be located above the heater (preferably at the highest point in the building interior) and it must vent to the exterior of the building. An addition- al vent is available from the factory for those having a finished workshop or utility building.

•An intake vent, or equivalent, from the exterior of the building and having an effective area of 75 square inches must be located below the heater (preferably within 2 feet of the building’s floor).

•Openings equivalent to intake vent would be: partially open doors and partially open win- dows.

•Openings of this size (5 inch by 13 inch, or 3 inch by 25 inch) will prevent dangerous heat buildup above the heater.

Ensure that no gas lines or electrical wiring or conduits will interfere with mounting of the heater to the wall.

Depending on local codes and requirements and the installer’s skill level, the sizing and installation of gas lines required to supply the heater may require the assistance of a professional. If in doubt as to these requirements, discuss the requirements of this manual

with the dealer from whom the heater was purchased and your gas supplier, or call our customer service department at 1-800-251-0001.

The selection of the thermostat mounting location is critical to efficient and effective heater operation.

•The thermostat should be mounted about 5 feet above the floor where air can circulate freely around it.

•The thermostat should not be mounted directly to a cold exterior wall without an insulated mounting block.

•The thermostat should not be mounted in direct drafts.

•The thermostat should not be mounted directly below the installed the heater.

•The thermostat should not be installed at a distance that is farther from the heater than the length of the thermostat cable.

2.HEATER MOUNTING INSTRUCTIONS

After selecting the heater installation location and the thermostat location and after verifying and ensuring that all of the above placement requirements are fulfilled, mount the heater as follows:

A.Determine how you wish to install the vent based on the construction of the building and your personal preference. (i.e., do you wish the flanged (finished) side on the interior or the exterior of the building or do you want two vents so that both exterior and interior will be finished?) If needed, order an additional vent from the factory. Our address and toll free phone number are on the rear cover of this manual. Install the vent as follows:

1.See Figure 3 for dimensions and information on the vent.

2.Select a place as high above the heater as possible in accordance with the above require- ments and ensure that the vent or vents will not contact or interfere with existing building systems (i.e., ducts, wiring, plumbing, etc.)

3.Place the unfinished side of the vent against the wall in its elected location and trace its dimensions on the wall with a pencil or other suitable marker.

4.Cut or otherwise open a hole in the wall, or walls for finished buildings, having the dimen- sions of the unfinished side of the vent.

5.Install the vent or vents as desired and retain

Model # MH25NG/LP

HS25NG/LP

E6

Installation instructions and Owner’s Manual

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Contents Spanish GAS Fired INFRA-RED Workshop HeaterEnglish FrenchTable of Contents Chapter Introduction EquipmentPurpose of Equipment General Information Heater Dimensions and Orifice SizesSee Tables 1 and 2 for heater specifications BTU Ratings and Supply PressuresOnly Flue Side of Heater can Chapter Heater InstallationGeneral Installation Information and Requirements Heater Side Reflector MustHeater Mounting Instructions Heater Mounting Information Gas Supply Requirements Connecting Heater to GAS SupplyPiping Installation Piping RequirementsTypical Piping Installation Chapter Heater Operating Instructions Operating Safety Instructions Heater StartupFlame for Leak Testing PressureHeater Shutdown Lighting of Pilot BurnerAdjusting the Pilot Flame Chapter Operator Maintenance InstructionsTroubleshooting ER Unit Beneath Cover ScrewSymptoms Causes Solutions Replacing the GAS Valve UnitFrequency of Operator Checks If Service is Required Please do not Return this Appliance to Your StoreChapter Replacement Parts List ALL Warranty Claims Require Proof of PurchaseFor Information Regarding Service or Parts For Additional InformationCalentador Infrarrojo a GAS Para Taller QUÉ Hacer SI Detecta Olor a GASAviso AdvertenciasIntoxicación por monóxido de carbono ÍndiceCapítulo Introducción EquipoFinalidad DEL Equipo Advertencias Tabla 1. Índices en BTU y presiones de suministro Tabla 2. Dimensiones del calentador y tamaños de orificioInformación General Número Tema relacionadoCapítulo Instalación DEL Calentador Información Y Requisitos Generales DE InstalaciónInstrucciones DE Montaje DEL Calentador Conexión DEL Calentador AL Suministro DE GAS Requisitos para el suministro de gasRequisitos relativos a los conductos Instalación de conductosUSE UNA Cantidad Moderada DE Sellador Para Conductos Encendido DEL Calentador Figura 7. Instalación característica de los conductosCapítulo Instrucciones DE Funcionamiento DEL Calentador Instrucciones DE Funcionamiento SeguroNota Apagado DEL Calentador Capítulo Instrucciones DE Mantenimiento Para EL OperadorNota Reparación DE AveríasAjuste DE LA Llama DEL Piloto Figura 11. Ajuste correcto de la llamaSíntomas Causas Soluciones Cambio DE LA Unidad DE LA Válvula DE GASFrecuencia DE LOS Controles DEL Operador SI Debe Repararlo No Devuelva EL Artefacto a LA TiendaCapítulo Lista DE Repuestos Para Obtener Información Sobre Reparación O Repuestos Instruccionesde Funcionamientoy Manualdel UsuarioAdvertencia Para Obtener MÁS InformaciónRadiateur D’ATELIER À Infrarouge Alimenté AU GAZ EN Présence D’UNE Odeur DE GAZMise EN Garde AvertissementsEmpoisonnement au monoxyde de carbone Table DES MatièresChapitre Introduction ÉquipementUtilisation DE L’ÉQUIPEMENT Avertissements Tableau 2. Dimensions du radiateur et tailles des orifices Renseignements GénérauxTableau 1. Puissances en BTU et pressions d’alimentation Chapitre Installation DU Radiateur LE Réflecteur Latéral DU Radiateur Doit Être HorizontalPuissance Instructions DE Montage DU Radiateur Directives de montage du radiateur Exigences relatives à l’alimentation en gaz Installation des tuyauxConnexion DU Radiateur À L’ALIMENTATION EN GAZ Exigences relatives à la tuyauterieInstallation type de la Tuyauterie Cm 3 poChapitre Radiateur Consignes DE SécuritéArrêt DU Radiateur Allumage de la veilleuseRéglage DE LA Flamme DE LA Veilleuse Chapitre Directives D’ENTRETIEN ’INTENTION DE L’UTILISATEURDépannage Réglage AP Proprié DE LA 10 À 13 Millimètres FlammeSymptômes Causes Solutions Remplacement DE LA Soupape DE GAZFréquence DES Inspections PAR L’UTILISATEUR SI UNE Réparation EST Nécessaire NE Retournez PAS CET Appareil À Votre Magasin’ARTICLE DE Nomen Description Clature Informations SUR LA Commande DE Pièces

HS25NG/LP, MH25NG/LP specifications

The Mr. Heater HS25NG/LP and MH25NG/LP are reliable and efficient heating solutions designed for both residential and commercial spaces. These powerful units deliver warmth and comfort, making them ideal for garages, workshops, and outdoor settings.

One of the standout features of the HS25NG and MH25NG is their versatility in fuel options. The HS25NG is designed to use natural gas, while the MH25NG operates on propane, providing flexibility based on user needs and availability. This adaptability allows users to select the most convenient and cost-effective energy source for their heating requirements.

Both models are equipped with a robust heat output, with the capability to deliver 25,000 BTUs per hour. This level of performance ensures quick heating even in larger spaces, establishing a comfortable environment in minimal time. The units also feature a wide heating area that can efficiently cover spaces up to 600 square feet, making them suited for various applications.

User safety and efficiency are paramount in the design of these heaters. The HS25NG and MH25NG come with an automatic shutoff system that activates if the unit tips over or detects any obstruction to airflow. Additionally, they are equipped with a built-in piezo ignition system, enabling easy and reliable lighting without the need for matches or an external ignition source.

The heaters also incorporate advanced technology to optimize performance. Their infrared heating design allows for direct and efficient warmth, minimizing energy loss and ensuring that heat is directed where it's needed most. This not only enhances efficiency but can also lead to reduced energy costs over time.

Both models are designed with portability in mind, featuring a lightweight construction and convenient carry handle, making it simple to move the unit from one location to another as needed. The durable construction ensures that they can withstand the rigors of frequent use, whether it be in a workshop or an outdoor gathering.

In summary, the Mr. Heater HS25NG/LP and MH25NG/LP are powerful, versatile, and reliable heating solutions that combine advanced technology with user-friendly features. With their strong heat output, safety features, and option for both natural gas and propane, these heaters are an excellent choice for those looking for efficient heating in any environment.
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