# How many watts of heat do I need per square foot?

## How many watts of heat do I need per square foot?

10 watts
As a rule of thumb, you’ll need roughly 10 watts of heating power for every square foot of floor area in the room. This means that a 1,500-watt heater can be the primary heat source for an area measuring up to 150 square feet.

## How many sq ft will 5000 watts heat?

400 square feet
A 1500 watt space heater can heat an area of 150 square feet, and a 5000 watt garage heater can comfortably heat an area of 400 square feet.

How many square feet does 1400 watts heat?

A 1,500 watt heater producing 5,100 BTUs can heat 150 square feet. That’s equivalent to a 10-by-15 foot room, an 11-by-14 or one sized to 12-by-12 1/2 feet with a standard 8-foot ceiling….How many square feet will a 1400 watt heater heat?

60°F Temperature Rise
2 car, 12 ft ceiling up to 700 sq ft 8,200 watts

### How many square feet will a 1200 watt heater heat?

120 sq. ft.
room, for example, requires a 1200 watt space heater (120 sq. ft. x 10 = 1200 watts). This is the quickest and easiest way to size a space heater, but unfortunately, there are a number of factors that can throw it off and have to be taken into account.

### How many watts does it take to heat 1000 square feet?

What Size Electric Heater do I need?

Room Size (Sq Ft with 8 foot ceiling) Watts (Poor Insulation) Watts (Avg Insulation)
60 square feet 750 750
80 square feet 1000 1000
100 square feet 1250 1000
120 square feet 1500 1250

How much does it cost to run 1500 watts per hour?

How Much Does it Cost to Run a Space Heater?

Heater Size @10 cents
500 watts 5 cents 7.5 cents
750 watts 7.5 cents 11.25 cents
1000 watts 10 cents 15 cents
1500 watts 15 cents 22.5 cents

#### How many square feet will 1500 watts heat?

150 square feet
A 1,500 watt heater producing 5,100 BTUs can heat 150 square feet. That’s equivalent to a 10-by-15 foot room, an 11-by-14 or one sized to 12-by-12 1/2 feet with a standard 8-foot ceiling.

#### How many watts does it take to heat 250 square feet?

In other words, a 1,500-watt heater will be great for a 250-square-foot room with central heat. If that same room had no other source of heat, you’d need a 2,000-watt heater.

How many sq ft will 1500 watts heat?

## Is 400 sq ft small?

400 Square Feet This is about the size of a two-car garage. In New York, 400 square feet is the minimum size for a new apartment (although apartments built before the law took effect, in 1987, are often much smaller).

## How many Watts Does It take to heat a room?

Multiply the two measurements together, and the total square footage of the room is equal to 180 square feet. Multiply the total square footage by the step 1 wattage requirements for the space. In the case of a well-insulated home, the heating wattage is 1800 watts.

How to calculate wattage per square foot for baseboard heating?

Calculating the wattage per square foot in a room for baseboard heating will give you a heads up as to how much electrical power is required for heating that space. As a general rule, the watts per square foot will vary by how efficient the home or room is for retaining heat. A well-insulated room will require 10 watts per square foot of room.

### How to calculate watts per square foot in meters?

If the they are given in meters, multiply the numbers by 3.280839895. For example, a room is 5.6 by 3.2 meters converts to 18.37 (5.6 x 3.280839895) by 10.50 (3.2 x 3.280839895) feet. Multiply the length of the room by width to calculate the area in square feet. In the previous example, the area of the room was 18.37-by-10.5–or 192.89 square feet.

### How to calculate the wattage of an outdoor heater?

Temp. rise ▲▼ °F °C Required Wattage ( W W ) Required Wattage ( W W ) Required Wattage ( W W ) Required Wattage ( W W ) 2 0.19 3 0.28 4 0.37 5 0.47 20°F 11°C 10 10 15 160 40°F 22°C 15 20 30 320 60°F 33°C 20 30 45 480