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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 ...

Calculating Cooling Loads | GreenBuildingAdvisor.com

www.greenbuildingadvisor.com/blogs/dept/musings/calculating-cooling-loads

May 4, 2012 ... Since water has a latent heat capacity of about 1,000 BTU per pound, ..... The 1 ton per 1,000 square feet rule of thumb is interesting.

Over-Sizing of Residential Forced Air Heating Systems - the Cold ...

www.cchrc.org/sites/default/files/docs/FinalReportRHE.pdf

modestly sized, with living areas ranging from 1050 square feet to 2482 square ... “rule of thumb,” common for Anchorage area homes, is 40 btu's heat loss per ...

Rule of thumb: Sq Ft per ton of A/C - HVAC-Talk

hvac-talk.com/vbb/showthread.php?181320-Rule-of-thumb-Sq-Ft-per-ton-of-A-C

RS Means has some 'rule of thumb' for sq ft per ton. .... 600 BTUs per head & it can 900 BTUs per head if they are active, soulful church, dance ...

Proper Sizing | Sen Plex Corporation - Oahu Air Conditioning Service

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 ...

Energy Management: Design Rules of Thumb - North Itasca Electric

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 ...

HVAC Design & Thumb Rules - Scribd

www.scribd.com/doc/18185824/HVAC-Design-Thumb-Rules

HVAC Design & Thumb Rules - Free download as PDF File (.pdf), Text File (.txt) or ... Average Load 200 sq. ft. of floor area per ton 9 people per ton 175 sq. ft. of floor ... Equipment Type Approximate Airflow Rate 1 CFM per 100 Btu/hr output 50 ...

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.

HVAC (Heating and Cooling Systems) | North Carolina Cooperative ...

energy.ces.ncsu.edu/hvac-heating-and-cooling-systems/

Aug 28, 2015 ... 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 ...

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

homeguides.sfgate.com

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 ...

Furnace Sizing Calculator - AC4Life

www.acdirect.com

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 ...

How To Choose a New Boiler - Bob Vila

www.bobvila.com

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  ...