Typical Piping Installation | Mr. Heater HS25NG/LP, MH25NG/LP

quirements and piping requirements are fulfilled, install piping as follows:

A.In accordance with the above piping requirements, assemble piping, sediment trap, shutoff valve, and necessary fittings. Tighten all components securely.

WARNING: Failure to ensure that male threads on pipe to be installed into gas valve meet the require- ments of Figure 6 may cause gas valve damage, distortion and malfunction.

B.Install a threaded nipple, prepared in accordance with paragraph 3.2 into gas valve.

C.Connect gas piping to nipple installed in the gas valve.

WARNING: When testing gas piping use only a soap and water solution. Do not use a match or other flame for leak testing. If during leakage check gas is smelled, turn off the gas supply and ventilate building.

D.Ensure the building is properly ventilated. Without lighting the pilot light of the heater, open the gas supply valve and pressurize the piping up to the heater’s gas valve.

E.Using a brush, apply a soap and water solution to all connections and look for bubbles indicating a leak. If a leak is detected, turn off gas supply and tighten connections. Retest and tighten connections

SUPPLY

LINE

SHUTOFF

VALVE

1/2”

TEE

3”

NIPPLE

CAP

RIGID PIPE WITH

UNION OR A FLEXIBLE CON- NECTOR TO HEATER

HEATER

NOTE:

1.ONLY USE A PIPE COMPOUND WHICH IS RESISTANT TO LIQUIFIED GASES ON LP INSTALLATIONS.

2.FITTINGS SHOWN ARE NOT INCLUDED WITH HEATER.

Figure 7. Typical Piping Installation

Model # MH25NG/LP

HS25NG/LP

Installation instructions and Owner’s Manual

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.