# 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.

## 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