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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 ...

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.

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 ...

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 ...

DESIGN AND CONSTRUCTION SUGGESTIONS - Radiantec

www.radiantec.com/pdf/Radiant_Heat_Design_and_Construction.pdf

(Up to 45 BTU per hour per square ft). SUSPENDED ... PER SQUARE. FOOT. The chart on the right is a rough “rule of thumb” ... To size the heating source, simply multiply your heat loss per square foot by the area (in sq. feet). You will need a ...

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

cchrc.org/docs/reports/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 ...

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 ...

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 ...

How do you calculate the number of BTUs per square foot ...

www.reference.com/science/calculate-number-btus-per-square-foot-51b30503ac6d8b59

Divide the final BTU calculation by the total square footage to get the number of BTUs ... Rule of Thumb BTU Per Square Foot · Calculate Price Per Square Foot ...

Sizing Residential Heating and Air Conditioning Systems | Old ...

www.oldhouseweb.com/how-to-advice/sizing-residential-heating-and-air-conditioning-systems.shtml

In that case, they may have a different "rule of thumb," or one of them may be using the ... This involves adjusting the square footage rule so that whatever the ... both the upper and lower values for heat loss in Btu per hour per square foot ( from ...

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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 ...

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

hvac-talk.com

RS Means has some 'rule of thumb' for sq ft per ton. .... The only "rule of thumb" I' ve seen that I liked (just a little) was cubic ft X 3 = the BTU ...

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 ...