Mr. Heater MH50K operating instructions Operating Precautions, Safety Precautions

OPERATING PRECAUTIONS

This is a kerosene, direct-fired, forced air heater. It's intended use is primarily temporary heating of buildings under construction, alteration or repair.

Direct-Fired means that all of the combustion products enter the heated space. Even though this heater operates very close to 100 percent combustion efficiency, it still produces small amounts of carbon monoxide. Carbon monoxide (called CO) is toxic. We can tolerate small amounts but not a lot. CO can build up in a heated space and failure to provide adequate ventilation could result in death.

The symptoms of inadequate ventilation are:

•headache

•dizziness

•burning eyes and nose

•nausea

•dry mouth or sore throat

So, be sure to follow advice about ventilation in these operating instructions.

Forced Air means that a blower or fan pushes the air through the heater. Proper combustion depends upon this air flow; therefore, the heater must not be revised, modified or operated with parts removed or missing. Likewise, safety systems must not be circumvented or modified in order to operate the heater.

When the heater is to be operated in the presence of other people the user is responsible for properly acquainting those present with the safety precautions and instructions, and of the hazards involved.

SAFETY PRECAUTIONS

1.Check the heater thoroughly for damage. DO NOT operate a damaged heater.

2.DO NOT modify the heater or operate a heater which has been modified from its original condition.

3.Use only Kerosene or #1 fuel oil. Never use gasoline, naphtha, paint thinner, alcohol or other fuels of any kind.

4.For indoor use only. Use only in well ventilated areas. Provide at least 2 sq. ft. of opening near the floor and

2 sq. ft. of opening near the ceiling. (Also see "Operating Precautions").

5.Install the heater such that is is not directly exposed to water spray, rain and/or dripping water.

6.Maintain minimum clearance from normal combustible material (like paper) at least 8 ft. from the heater outlet and 3 ft. from the top, sides and inlet. Locate 10 ft. from convas or plastic coverings and secure them to prevent flapping or movement.

7.Due to the high surface and exhaust temperatures, adults and children must observe clearances to avoid burns or clothing ignition.

8.Never use in areas normally for habitation and/or where children may be present.

9.Operate only on a stable, level surface.

10.Do not use with ductwork. Do not restrict inlet or exit.

11.Use only the electrical power specified. The electrical connection and grounding must comply with National Electrical Code - ANSI/NFPA 70 (USA) and CSA C22.1 Canadian Electrical Code, Part 1 (Canada).

12.Use only a properly grounded 3-prong receptacle or extension cord.

13.Do not move, handle or service while hot or burning.

14.Use only in accordance with local codes and federal ordinances.

Mr. Heater Kerosene Forced Air Heater 3 Operating Instructions and Owner’s Manual