# How Many Square Feet Will A 70000 BTU Furnace Heat?

## How big of a furnace do I need for a 1500 sq ft house?

A 1,500-square-foot home will require between 45,000 to 90,000 BTUs.

A 1,800-square-foot home will require between 55,000 to 110,000 BTUs..

## How many BTUs do I need for a 2000 square foot house?

Rules of Thumb If you live in a moderate climate such as the Pacific Northwest, you might only need 25 to 30 BTUs per square foot. In harsher climates such as the Dakotas, up to 45 BTUs per square foot are appropriate. A 2,000-square-foot house would require 60,000 BTUs at the lower figure, or 90,000 at the higher.

## How many BTUs does it take to heat a house?

Once you know your climate zone, and the corresponding BTU requirements for your area, you’ll be able to find a general number for your home. For example, in zone 3 to 4, which typically requires 40-45 BTU per square feet, you can determine that a 2,500 square foot home would need a 100,000 to 112,000 BTU furnace.

## How many BTUs do I need to cool 500 square feet?

The equation for ‘sq ft to BTU’ is quite simple – just multiply the sq ft with 20. That means that a 500 sq ft room needs a 10,000 BTU air conditioner.

## How many BTU is 2400 square feet?

For example, if the bedroom and office area zone is 1,800 square feet and the living areas and kitchen are 2,400 square feet, add together the recommended BTUs for each. You’ll need between about 180,000 and 280,000 total BTUs for your home based on the climate and house factors considered in the calculator.

## What size furnace do I need for a 1400 square foot home?

STEP 1: Determine how many BTUs of heating and tons of AC you needHouse Square FootageBTUs Needed1,200 – 1,40023,0001,400 – 1,50024,0001,500 – 2,00030,0002,000 – 2,50034,00010 more rows

## How do I choose the right size furnace?

Calculating Your Basic Heating Needs You’ll want to multiply your home’s square footage by the recommended heating factor to obtain the furnace output rating you’ll need. For example: If your home is 2,400 square feet and you figure 35 BTUs per square foot, you’ll need a 84,000 BTUH-capacity furnace.

## How do you calculate BTUs needed?

How Is Your Room’s BTU Requirement Calculated? A room’s BTU requirement is based upon the cubic volume of the space – the height, length and the width of the room multiplied by four (done for you by our calculator) – and what is above, below and besides the room.

## How many BTUs do I need to heat 4000 square feet?

APPROXIMATE BTU OUTPUT NEEDED BY SQUARE FOOTAGEAPPROXIMATE SQUARE FOOTAGEUp to 200Up to 1000RECOMMENDED INSULATION4,000 BTU20,000 BTUMODERATE INSULATION6,000 BTU30,000 BTUPOOR INSULATION9,000 BTU45,000 BTU

## What size furnace do I need for a 1200 sq ft house?

Furnace Output and Air Conditioner size for a BungalowBungalow Area [square feet] *Furnace Output [BTU/hr]Air Conditioner size [ton]up to 1200 sq ft40,000 BTU/hr1.5 ton1200 to 1500 sq ft50,000 BTU/hr2 ton1500 to 1800 sq ft55,000 BTU/hr2 ton1800 to 2500 sq ft65,000 BTU/hrup to 2.5 ton3 more rows•Feb 2, 2018

## How many square feet will a 75000 BTU furnace heat?

A 75,000 BTU heater can heat a room of between 1,900 and 3,700 square feet in a cold climate if there is little to no insulation. In more temperate climates the heater fares better, heating an uninsulated room of any size from 2,400 to 4,600 square feet.

## How many square feet will a 60000 BTU furnace heat?

A standard that is used by heating and cooling equipment companies is to provide at least 25 to 30 Btu of heat per square feet in the home for a moderate to warm climate. A mid-sized home of 2,000 square feet would need approximately 50,000 to 60,000 Btu to heat it properly.

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

Size and Ceiling HeightArea To Be Cooled (square feet)Capacity Needed (BTUs per hour)1,200 to 1,40023,0001,400 to 1,50024,0001,500 to 2,00030,0002,000 to 2,50034,00010 more rows

## How many square feet will a 100000 BTU furnace heat?

However, there are basic “rule-of-thumb” estimations to help select the proper size for your home. In colder climates, you’ll want a furnace that generates 40 to 45 BTUs per square foot. At this amount, you’ll need 100,000-112,500 BTU furnace to heat a home of 2,500 square feet.

## How much is a new furnace for a 2000 square foot home?

The average cost range for purchasing and installing a gas furnace designed to heat a 2,000-square-foot home with a 97% efficiency rating ranges from \$3,000 to \$8,000, with most homeowners spending around \$6,000 total.

## What is the most reliable furnace brand?

Best Furnace BrandsAmerican Standard Furnaces.Amana Gas Furnaces.Bryant Furnaces.Carrier Furnace Units.Daikin Furnaces.Goodman Gas Furnaces.Lennox Furnace Units.Rheem Furnaces.More items…

## How many square feet will a 80 000 BTU furnace heat?

80 X 1,000 square feet = 80,000 BTUs.

## What size furnace do I need for a 1700 square foot home?

Estimating Your Needs The average Kansas City home, which is around 1,700 sq. ft., will need a furnace rated at 68,000 to 78,500 BTUs per hour. Your heating degree day can also provide a rough estimate.

## How many BTUs do I need for 1000 square feet?

2. Find the correct cooling capacity for your room sizeArea To Be Cooled (square feet)Capacity Needed (BTUs per hour)450 up to 55012,000550 up to 70014,000700 up to 1,00018,0001,000 up to 1,20021,00010 more rows

## Is a higher BTU furnace better?

A heater with a higher BTU rating is more powerful — that is, it has a higher heat output — than one with a low BTU rating. It can do more to raise the temperature in your room each hour, so you can either heat a room more quickly or heat a larger space.

## Can a furnace be too big for a house?

An Oversized Furnace Causes Your System To Short Cycle When you have a heating system that is too large, your thermostat will read a higher temperature. Consequently, your furnace will turn off too soon to heat the rest of your house. … Short cycling will also increase your home heating costs.