Heater Shutdown | Mr. Heater MH25LP / MH25NG instruction

D.Wait 5 minutes to allow gas that may have accumulated in the main burner to escape (especially important after installation).

E.Turn the manual gas control knob to the PILOT position.

F.Depress the manual gas control knob. Using a match, light the pilot light. See Figure 10. Hold the knob down for approximately 30 seconds to allow any air in gas lines to pass through pilot and, once pilot is lit, allow the thermocouple to heat up enough to activate the safety valve in an open position.

G.Release manual gas control knob and turn to ON.

H.Reset thermostat to desired temperature.

NOTE

During the initial startup of heater, an odor and, perhaps, some vapor will come from the heater. This is the gasket binding material emitting this odor and/ or vapor. After approximately 20 minutes, this odor will disappear and not occur again.

3.HEATER SHUTDOWN

A. Turn thermostat to OFF.

B.Turn manual gas control knob on gas valve to PILOT position.

C.Partially depress knob and rotate to the OFF position.

D.Close gas supply valves.

DEPRESS TO
LIGHT	GAS VALVE

PILOT BURNER

LIGHT PILOT WITH MATCH

AS SHOWN

Figure 10. Lighting of Pilot Burner

Model # MH25NG/LP

HS25NG/LP

11 Installation instructions and Owner’s Manual

MH25LP / MH25NG specifications

The Mr. Heater MH25LP and MH25NG portable heaters are designed for anyone looking to efficiently heat small to medium-sized spaces, whether indoors or outdoors. These heaters are known for their reliability and effectiveness, making them popular choices for residential use, outdoor activities, and emergency heating scenarios.

The MH25LP is the propane model, while the MH25NG utilizes natural gas, providing versatility in fuel options to cater to different preferences and availability. Each unit is fitted with essential safety features, including an oxygen depletion sensor and an accidental tip-over shutdown system, ensuring peace of mind during use.

One of the main features of the Mr. Heater MH25 series is its impressive heating capacity. The units can produce up to 25,000 BTU per hour, sufficient for heating spaces up to 600 square feet, making them ideal for workshops, garages, cabins, and various outdoor activities. The adjustable heat settings allow users to customize the temperature to suit their comfort level, maximizing efficiency and reducing fuel consumption.

The design of the MH25 heaters emphasizes user convenience. Both models are lightweight and portable, which allows for easy transportation from one location to another. They come equipped with comfortable carrying handles, enhancing their usability for outdoor events, camping trips, or simply moving from room to room.

Another significant feature of the Mr. Heater MH25 series is the sophisticated combustion technology employed. The heaters utilize a radiant heating system that effectively warms objects and people in the room rather than just the air, leading to faster heating times and a more comfortable environment. Additionally, the units are designed with a sturdy and durable construction that ensures longevity, withstanding the rigors of outdoor use.

The units are also designed to operate quietly, making them an excellent choice for environments where noise levels need to be kept to a minimum, such as in personal workshops or while camping.

Overall, the Mr. Heater MH25LP and MH25NG are powerful, safe, and portable heating solutions that provide reliable warmth and comfort in various settings. Their combination of efficient heating, portable design, and safety features makes them an essential tool for anyone needing reliable heating solutions. Whether for everyday use or special events, these heaters stand out as dependable options to keep warm.