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## BTUs rule of thumb - HVAC-Talk

Is there a rule of thumb for how many heating BTUs needed? ... In my area, very few houses need 30 btu's per sq ft(winter design 8*F). Which is ...

## Furnace Sizing Calculator - AC4Life

www.acdirect.com/gas-heat-learning-center-furnace-sizing-calculator

30 - 35 Btu's per square foot, 35 - 40 Btu's per square foot, 40 - 45 Btu's per ... A general rule of thumb is that if your home is well insulated with newer style ...

## Energy Management: Design Rules of Thumb

www.northitascaelectric.com/EM/designrules.html

Jun 6, 2013 ... The design rules below are intended for informational purposes only. ... Plenum heaters can be sized using 8 to 10 watts per square foot with 8 foot ceilings ... 2.75 Btu's heat loss per cubic foot for the upper level and 1.75 Btu's ...

## How many BTUs per square foot are needed when sizing a home ...

www.reference.com/home-garden/many-btus-per-square-foot-needed-sizing-home-furnace-e01498ba9778667f

Square footage measurement is generally considered a rudimentary ... Square Foot · Air Conditioner Square Foot Per Ton · Rule of Thumb BTU Per Square Foot  ...

## Heat Loss Calculations - Steffes

www.steffes.com/_literature_31172/Rule_of_Thumb

(Rule Of Thumb Shortcut Methods). Cubic Foot Method for Calculating Heat Loss: ⇨ Homes with a basement: Use 2.4 BTU heat loss/cubic foot for the upper ...

## Rule of Thumb A/C sizing question from Practice Exam - InterNACHI ...

www.nachi.org/forum/f20/rule-thumb-c-sizing-question-practice-exam-4672/

A typical value used for air conditioners is one ton (12,000 Btu /hour) per 500 square feet (46 m2). This does not take into account differences ...

## How Many BTUs Does a Furnace Need for a House? | Home Guides ...

homeguides.sfgate.com/many-btus-furnace-need-house-100318.html

But there are also "rule-of-thumb" estimations you can use to pick a furnace size for ... At 40 to 45 BTUs per square foot, you'd need a 100,000 to 112,500 BTU ...

## How To Choose a New Boiler - Bob Vila

www.bobvila.com/articles/how-to-choose-a-new-boiler/

An easy rule-of-thumb for BTU requirements is to figure that you need about 50 BTU per square foot of interior space in a cold climate; 35 BTU per square foot in  ...

## Proper Sizing | Sen Plex Corporation

www.senplex.com/size-matters.html

General Rule of Thumb for HVAC heat loads: Residential – 35 Btu's per square foot; Light Commercial – 45 Btu's per square foot; Commercial – 50 Btu's per ...

## Dr-Fix-It! Notebook Archive: A Heating Rule of Thumb

www.dr-fix-it.com/arc_heating.html

Aug 14, 2004 ... Dr-Fix-It! Notebook Archive: A Heating Rule of Thumb. ... Next, multiply your building's square footage by each of the multiplier factors. ... signify the Btu-per- hour (Btu/Hr)output range of a furnace for that size and type of house.