Rule of thumb, of course. So the **space** you **want** to cool ( **20×20**=400) **should** be doable wih a 1 ton (12,000 BTUH) unit. But I’d bump it up to a 15,000 – 16,000 BTUH to handle the hot, humid summer **heat** of your area. Re: **How many BTU** for a **20×20 bedroom**?

Then, How hot is 1000 watts?

This would be like an “average” oven temperature of 350 degrees. 700 **Watts** in microwave >> like cooking at 350 degrees 800 **Watts** >> 450 degrees 900 **Watts** >> 525 degrees (Self clean) **1000 Watts** >> 575 degrees 1100 **Watts** >> 625 degrees (Blow torch!!)

Considering this, Which kind of room heater is best?

Room Heater | Price | Ratings |
---|---|---|

HAVELLS OIL FILLED RADIATOR 2500W | ₹ 8,828 | 4.5/5 |

Bajaj Majesty Rh 13 F Oil Filled Room Heater | ₹ 10,999 | 4.3/5 |

Orpat OOH-9F 2500-Watt Oil Heater | ₹ 5,262 | 5/5 |

Optimus 700-Watt Electric Portable Oil-Filled Radiator Heater | ₹ 7,703 | 3.8/5 |

**21 Related Questions and Answers Found 💬**

Table of Contents

**What is the best kind of electric heater?**

**Our Top Picks**

- Best Stove Heater: Duraflame Infrared Quartz Fireplace Stove atAmazon.
- Best Infrared Space Heater: Lifesmart 6-Element Quartz Heaterat Amazon.
- Best Ceramic Space Heater: Lasko Full Circle Ceramic Heater atWalmart.
- Best Energy Saving: Dyson AM09 Fan Heater at Amazon.

**How do you size a heater?**

**How to Calculate Heater Size**

- Measure the length, width and height of each room you want to heat.
- Add the areas of all rooms to be heated to get the total cubic feet.
- Estimate your desired temperature increase.
- Calculate the BTUs you need.
- Recognize situations that may increase your heater size needs.

**How can I heat my room without a heater?**

**Part 1**

**Heating your House Without a Heater**

- Close all of your windows properly.
- Use cheap, transparent shower curtains over the windows thatreceive sunlight.
- Put up curtains.
- Seal your doors.
- Let as much sun hit your house as possible.
- Close off any unused rooms.
- Put down a rug or carpet.

**How many BTU do I need for a 12×12 room?**

Area To Be Cooled (square feet) | Capacity Needed (BTUs per hour) |
---|---|

100 up to 150 | 5,000 |

150 up to 250 | 6,000 |

250 up to 300 | 7,000 |

300 up to 350 | 8,000 |

**What size room will a 1500 watt heater 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 do I calculate BTU for heating?**

**Calculating**the

**BTU**for your

**room**

If you are **calculating** by yourself you need to:**Calculate** the cubic volume of your **room** in feet ormeters. This is **calculated** by multiplying the height, widthand length of your **room**. After that, multiply the figure bythe following values for a rough estimate of your suggested**BTU**.

**Which type of heater is cheapest to run?**

If a portable electric **heater** is definitely what you need, halogen **heaters** and oil-fired radiators are the **cheapest to run**, while bar fires and fan **heaters** are more expensive. The higher an appliance’s power rating in watts, the more it will cost to **run**.

**How much watts of the heater would need for 400 square feet?**

**CORRECTLY SIZE YOUR FIREPLACE (Kw)**

- Calculate your room volume (m
^{3}) Measure your roomwidth, length and height, as illustrated in the figure below.Multiply those figures with each other to get your roomvolume. - Multiply the cubic meters by the relevant insulation factorbelow: Poorly insulated room: 0.06. Well insulated room:0.035.

**What is the best space heater for large rooms?**

**Top 5 Heaters For Large Rooms**

- DeLonghi HMP1500 Mica Panel Heater.
- Lasko 6435 Designer Series Ceramic Oscillating Heater.
- Vornado MVH Whole Room Vortex Heater.
- Dr Infrared Heater Portable Space Heater, 1500-Watt.
- Lasko 755320 Ceramic Tower Heater with Digital Display and Remote Control.

**How do you calculate BTU for a room?**

As a rule of thumb, an air conditioner needs 20**Btu** for each square foot of living space. But otherconsiderations, such as the ceiling height and the **size** ofyour windows and doorways, might call for more cooling power. To**measure** your **room**, multiply the length of the**room** by the width.

**How do you calculate heat dissipation in Watts?**

**Selection Procedure:**

- Determine input power in watts per square feet by dividing theheat dissipated in the enclosure (in watts) by the enclosuresurface area (in square feet).
- Locate on the graph the appropriate input power on thehorizontal axis and draw a line vertically until it intersects thetemperature rise curve.

**How many square feet will a 5000 watt electric heater heat?**

Therefore, a **1500** watt space heater (**120** volts) can heat an area of **150 square feet**, and a garage heater rated at 5,000 watts should be able to comfortably heat an area over **400 square feet**.

**How many square feet will a 10000 watt heater heat?**

**How many BTUs does it take to heat a 1000 square foot house?**

To determine the number of BTUs per square foot that youneed to heat a room, simply multiply the square footage by **20BTUs** per square foot. For example, if a room has 1,000 squarefeet, you would require 20,000 BTUs to heat it.

**How many BTUs do I need to heat a 24×24 garage?**

A basic rule of thumb for forced-air heaters is 45,000**Btu to heat** a two- to 2-1/2 car **garage**, and 60,000for a three-car **garage**. The makers of low-intensity infraredtube heaters say that 30,000 **Btu** can **heat** a two to2-1/2 car **garage**, and suggest 50,000 for a three-car**garage**.

**How many BTUs do I need to heat 1500 square feet?**

Area To Be Cooled | Capacity Needed (BTUs Per Hour) |
---|---|

700 to 1,000 square feet | 18,000 BTUs |

1,000 to 1,200 square feet | 21,000 BTUs |

1,200 to 1,400 square feet | 23,000 BTUs |

Up to 1,500 square feet | 24,000 BTUs |

**How many BTU do I need for 800 square feet?**

Area To Be Cooled (Sq. Ft.) | Capacity Needed (BTUs Per Hour) |
---|---|

450 to 550 sq. ft. | 12,000 BTUs |

550 to 700 sq. ft. | 14,000 BTUs |

700 to 1,000 sq. ft. | 18,000 BTUs |

1,000 to 1,200 sq. ft. | 21,000 BTUs |

**Do plug in heaters use a lot of electricity?**

This means for each hour the space **heater** is running it consumes 1.5 kWh of **electricity**, which costs about 16 cents. But running that **heater** nonstop is a surefire way to increase your **electric** bill. If you ran one 1,500 watt space **heater** for 24-hours a day for a single month it would cost about $118.

**How do you convert BTU to Watts?**

**BTUs**/h are normally used in the definition of thecooling power of air conditioning systems as well as of the heatingpower of fuel. For W to **BTU**/h conversions, 1 W is equal to3.41 **BTU**/h. Therefore to **convert BTU**/h into**Watts** you need to divide by 3.41; to **convert Watts**into **BTU**/h you need to multiply by 3.41.

**How much watts of the heater would need for 400 square feet?**

**Formula**for

**Rooms**with RegularCeilings

For example, if your **room** is 25 feet wide, and30 feet long, your area **calculation** will be 750 square feet.Multiply that number by 10, and you will get an estimate of 7500watts being used hourly for **heating** it, which is equal to7.5 **kilowatts**.

If you only use your **space heater** 8 hours a **day**, at $0.12 **per** kilowatt hour, your **average space heater** energy use comes in at $1.44 **per day**.

**How much is 1500 watts per hour?**

Appliance | Typical Consumption Per Hour | Cost Per Hour (at 10 cents per kilowatt-hour) |
---|---|---|

Central air conditioner/heat pump | 15,000 watts | $1.50 |

Clothes dryer/water heater | 4,000 watts | 40 cents |

Water pump | 3,000 watts | 30 cents |

Space heater | 1,500 watts | 15 cents |

**How much does it cost to run a 750 watt heater for 24 hours?**

Even if you’re not **running** your space **heater** on full, the **costs** are going to be high. 600 **watts**: About $60 per month. **750 watts**: About $75 per month.

**How much does it cost to run a 750 watt heater for 24 hours?**

In general, the power required by electrical heating is calculated in **watts**. **Wattage**: Multiply the area in **feet** by 10. For a room 20 **feet** by 20 **feet**, we obtain **400 sq**. ft., multiplied by 10 to give 4000 **watts**.

**Is it cheaper to use a space heater or central heating?**

If you only need to warm up one or two rooms in your home, a **space heater** may be a more practical choice. **Space heaters** do **use** less energy as compared to using **central** heat. As such, having a **space heater** in every **room** in the home and turning them all on at the same will only cost you more, not less.

**How much does it cost to run a ceramic heater?**

My **ceramic** space **heater** uses 1500 watts and **costs** me about 18 cents an hour to use, at 12 cents per kWh. I probably use it about 8 hours a day, which **makes** it $1.44 a day. My gas bill, which covers heat, hot water and cooking, runs about $3.50 a day when it is really cold outside.

**How many BTUs do I need?**

Area To Be Cooled (sq. feet) | → Capacity Needed (BTUs per hour) |
---|---|

400 up to 450 | 10,000 |

450 up to 550 | 12,000 |

550 up to 700 | 14,000 |

700 up to 1,000 | 18,000 |

**How do I calculate what size air conditioner I need?**

To **calculate** the **size**, simply multiply thelength times the width of the room or area to be cooled. Then, as apractical number, multiply that total times 25 BTU.

**How much does it cost to run a space heater per day?**

My **ceramic** space **heater** uses 1500 watts and **costs** me about 18 cents an hour to use, at 12 cents per kWh. I probably use it about 8 hours a day, which **makes** it $1.44 a day. My gas bill, which covers heat, hot water and cooking, runs about $3.50 a day when it is really cold outside.

**What size room will a 1kW heater heat?**

**Heater Size**

In a living **room** you **will** need 100 wattsper m²: 1,000 watts (**1kw**) per 10m². In a**bedroom** you probably only need 75 watts per m²: 750watts per 10m². You need **to** find out the area in squaremetres of your **room**.

**How do you size a heater for a room?**

If you only use your **space heater** 8 hours a **day**, at $0.12 **per** kilowatt hour, your **average space heater** energy use comes in at $1.44 **per day**.