Mr. Heater Air Conditioner User Manual

HEATING PRODUCTS SELECTION GUIDE

How Much Heat Do You Need?

Estimated Heating Area information included on this guide assumes the area to be heated has a 10 ft ceiling.

If the area to be heated has a higher or lower ceiling, calculate the amount of BTU’s required by using the following method:

1. Measure the space’s dimensions to determine

cubic feet. (Length x Width x Height = Cubic Feet)

2. Subtract the outside temperature from the

desired inside temperature to determine the

temperature rise.

3. Use the chart on the right to match the size of

the heating area (cubic feet) with the desired

temperature rise to find the amount of BTU’s

required to heat your space.

What Type Of Heater Should You Buy?

-40 -21 0ºC +21 +40

TEMPERATURE

RISE = 42ºC

CUBIC FEET

FAHRENHEIT

* Example based on a temperature rise of 45ºF / 25ºC to heat approximately 10,000 cubic feet.

BTU’S REQUIRED TO HEAT SPACE TO DESIRED TEMPERATURE

25,000

20,000

15,000

10,000

7,500

5,000

2,500

CELSIUS

60K

48K

36K

24K

18K

12K

10ºC

18ºF

CHOOSE THE DESIRED TEMPERATURE RISE

90K

72K

54K

36K

27K

18K

15ºC

27ºF

120K

96K

72K

48K

36K

24K

12K

20ºC

36ºF

150K

120K

90K

60K

45K

30K

15K

25ºC

45ºF

180K

144K

108K

72K

54K

36K

18K

30ºC

54ºF

240K

192K

144K

40ºC

72ºF

96K

72K

48K

24K

By answering the following questions and using this chart, you’ll be able to determine which heater is best to meet your heating needs.

1. Where will the heater be used?

There are portable heaters specifically designed

for safe indoor use as well as rugged heaters for

outdoor work sites and other outdoor activities.

2. How much heat do you need?

Heat outputs range from 3,800 to 400,000 BTU’s.

3. What fuel is available?

Mr. Heater makes heaters for propane, natural

gas, and kerosene/diesel. Also notice that some

heaters require electricity.

BUDDY SERIES

TANK TOPS

PORTABLE RADIANT

CONVECTION

FORCED AIR PROPANE

FORCED AIR KEROSENE

UNIT HEATERS

LP GAS

INDOOR SAFE

KEROSENE

NATURAL GAS

GARAGE

CONSTRUCTION

HOME EMERGENCY

ELECTRICITY

OPERATES WITHOUT

BTU/HR RATINGS

3,800-18,000

12,000-42,000

35,000-125,000

30,000-200,000

35,000-400,000

50,000-210,000

45,000-75,000

HEATING PRODUCTS SELECTION GUIDE

Types Of Heaters

GARAGE/WORKSHOP UNIT HEATERS: Garage/Workshop unit heaters use a built-in electric fan to pull cool air into the rear of

WORKSITE CONVECTION HEATERS: Convection propane heaters circulate warm air without electricity. Air is drawn in at the

Types Of Heaters

RADIANT HEATERS: Portable indoor safe radiant heaters feature an automatic low oxygen safety shut

off (ODS). Outdoor radiant heaters do not have an ODS and are for outdoor use only.

FORCED AIR HEATERS: Forced air propane and kerosene heaters use a built-in electric high-velocity fan that

pulls cool air into the rear of the heater and forces it through the heat chamber into the surrounding area as heated air.

the heater and over a heat exchanger, forcing hot air into the surrounding area. Heat exchanger keeps exhaust gas and heated air separate. (Requires venting to the outside.)

base of the unit as heated air exits 360º from the top.

INDOOR

Buddy Series Indoor Safe Heaters

• Approved for indoor and outdoor use

• Low oxygen sensor shutoff

• 3,800 – 18,000 BTU/HR

• Heats 200 – 400 sq. ft.

• For cabins, tents, barns, workshops, RVs, home emergencies

• All units operate on 1 lb. propane cylinders

• Larger units also operate with 20 lb. propane cylinders

• Limited 1-year warranty

Garage/Shop Heaters

• Easy installation and minimal ceiling clearance

• 45,000 – 75,000 BTU/HR

• Heats 500 – 1,000 sq. ft.

• Propane or natural gas

• Limited 1-year warranty

• Optional thermostat available

• Exhaust ventilation required

(Optional vent kits available)

OUTDOOR/WORKSITES

Original Series Outdoor Tank Tops

• Efficient, direct radiant heat

• Fast, quiet operation

• 12,000 – 42,000 BTU/HR

• For outdoor jobs, campsites, vehicle maintenance, loading docks, animal comfort

• Operates on 20 lb. propane cylinder

• Limited 1-year warranty

Contractor Series Forced Air Propane

• Maximum heat circulation with built-in fan

• 35,000 – 400,000 BTU/HR

• Heats 1,200 – 6,000 sq. ft.

• For construction sites, commercial workspaces, remodeling jobs, agricultural buildings, workshops

• 20 lb., 40 lb., or 100 lb. propane cylinder sizes depending on model

• Limited 1-year warranty

Contractor Series Convection & Radiant

• Efficient radiant heating heats objects, not air

• Uniform convection heating offers 360-degree directional heat

• 30,000 – 200,000 BTU/HR

• Heats 800 – 4,700 sq. ft.

• For construction sites, remodeling jobs, barns, sporting events

• 20 lb., 60 lb., or 100 lb. propane cylinder sizes depending on model

• Limited 1-year warranty

Contractor Series Forced Air Kerosene

• Maximum heat circulation with built-in fan

• 50,000 – 210,000 BTU/HR

• Heats 800 – 9,000 sq. ft.

• For construction sites, commercial workspaces, remodeling jobs, agricultural buildings

• Kerosene/JP8/#1 and #2 Diesel/#1 and #2 Fuel Oil

• Limited 1-year warranty

FOR ADDITIONAL PRODUCT INFORMATION AND SPECIFICATIONS VISIT WWW.MRHEATER.COM