Reconcile one completed room-area record with the EPA ENERGY STAR room-air-conditioner cooling-capacity chart and its published shade, occupancy, and kitchen adjustments.
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A quick decision brief for this specific tool
Inputs that matter
One named and revisioned completed room-air-conditioner screening record; exact room/conditioned-space identity, completed floor-area source and method, responsible reviewer, positive area in ft² or m², completed measurement/plan/published-area basis, regular whole-number occupants, ENERGY STAR typical/heavy-shade/very-sunny exposure choice, kitchen yes/no, documented 8 ft ceiling basis, and explicit room-AC-cooling-only decision boundary
Output to expect
Normalized completed area in ft²; the exact published ENERGY STAR area band and base Btu/h; separate exposure, additional-occupant and kitchen adjustments; final screened room-AC cooling capacity; complete room, area source/method and reviewer evidence; deliberate page-session retention, copy/Markdown/print/share actions; and stable Project outputs that keep heating/whole-home loads, Manual J, Manual S/equipment selection, higher-ceiling formulas and installation/electrical/refrigerant/operation approval false
How it works
Validate one completed room record; convert m² to ft² when required; select the upper-inclusive published ENERGY STAR band from100 through2,500ft²; apply −10% to the base for heavy shade or +10% for very sunny exposure; add600Btu/h for each regular occupant above two and4,000Btu/h for kitchen use; retain every adjustment separately without rounding to a product size
The exact room boundary, area source/revision, completed measurement or takeoff method, 8 ft ceiling basis, exposure, regular occupancy, kitchen use and reviewer must travel together. Another room, boundary, revision, ceiling, exposure, occupancy pattern or kitchen status needs another responsible record.
The ENERGY STAR chart is a bounded room-air-conditioner cooling screen, not a heating or whole-home load and not Manual J or Manual S. Keep higher/unknown ceilings, envelope and window properties, design weather, infiltration, humidity/latent load, ducts, ventilation, equipment curves, product fit, electrical/refrigerant work, permits, installation and operation with current qualified evidence and responsible professionals.
Choose your path
Built around the job you need to finish
Reconcile one completed source-owned room-area record against the published EPA ENERGY STAR room-air-conditioner cooling-capacity chart and its named adjustments without presenting the screen as heating, whole-home or central-system load calculation, equipment selection or installation approval.
Homeowner or renter screening one room air conditioner
Translate a completed room area and the few published adjustment facts into a traceable room-AC cooling-capacity screen without a universal Btu-per-square-foot shortcut.
Name the room record, retain its area source and method, enter the completed ft² or m² value, document an 8 ft ceiling basis, exposure, regular occupants and kitchen status, then reconcile the published band and adjustments.
Receives the exact chart band, base and separate adjustments while the result stays a room-AC screen rather than a product recommendation or installation decision.
Property or maintenance reviewer checking a recorded screen
Keep the room boundary, source revision, area method, occupants and reviewer together so another person can reproduce the number.
Create one record for one conditioned room, inspect every source-owned input and retained adjustment, retain an immutable page-session snapshot, edit the live record and verify that the prior result becomes stale.
Can reproduce and retain the screened value without silently changing the room, source, adjustment facts or responsibility.
Phone user testing a familiar HVAC-sizing promise
Avoid turning a room-AC chart into heating, mini-split, central HVAC, heat-pump, higher-ceiling, Manual J/S or installation advice.
Load the static example, trigger out-of-chart, higher-ceiling and system-decision refusals, recover with the supported boundary, reconcile, retain, edit and Reset.
Every unsupported request fails at its owning field with no stale result/action, and the Tool never invents a load, equipment match, electrical/refrigerant or operating approval.
Authoritative checks for this tool
Outputs and checklists are planning aids. Review the linked current authorities and the records, terms, instructions, and requirements that apply to your exact situation before a consequential decision.
Retain the exact room boundary, completed area source, measurement or takeoff method, revision, and reviewer. Convert m² to ft² when needed, then remain inside the published 100–2,500 ft² chart range.
ft² = m² × 10.7639104167
Select the published ENERGY STAR band
Use the discrete room-air-conditioner table, not a universal Btu-per-square-foot multiplier. The chart begins at 5,000 Btu/h for 100–150 ft² and ends at 34,000 Btu/h for 2,000–2,500 ft²; it is based on an 8-foot ceiling.
Base capacity = published capacity for the completed area band
Apply only the named room-AC adjustments
Reduce the base 10% for heavy shade or increase it 10% for a very sunny room. Add 600 Btu/h for each regular occupant above two and 4,000 Btu/h for a kitchen. Keep every component visible instead of rounding to a product size.
The published 150–250 ft² band gives a 6,000 Btu/h base. Very sunny exposure adds 600 Btu/h, so the screen records 6,600 Btu/h without recommending a product.
The upper-inclusive 350–400 ft² band gives 9,000 Btu/h. Two occupants above the first two add 1,200 Btu/h; the recorded screen is 10,200 Btu/h before any kitchen adjustment.
The Tool refuses to invent a higher-ceiling multiplier or turn the room-AC chart into a heating, mini-split, heat-pump, central-system, Manual J, Manual S, or installation decision.
Common Mistakes to Avoid
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Calling the room-AC chart a Manual J load calculation
✓
Manual J considers design conditions, envelope, fenestration, infiltration, internal, duct, ventilation, and latent loads. Keep the bounded consumer chart clearly labeled as a screen.
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Inventing a climate, insulation, or higher-ceiling multiplier
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Apply only ENERGY STAR's published shade, occupancy, and kitchen adjustments. Refuse unsupported formulas and route the task to a responsible load calculation.
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Treating the screened Btu/h as equipment or installation approval
✓
Keep manufacturer performance, product fit, electrical service, refrigerant work, permits, installation, and operation outside this Tool.
FAQ
No. It reproduces the discrete EPA ENERGY STAR room-air-conditioner chart for 100–2,500 ft² and preserves the exact band used.
No. The Tool does not round to a model, verify product fit, compare performance data, or apply ACCA Manual S. Keep product and installation decisions with current manufacturer data and responsible professionals.
ENERGY STAR states that its published capacities are calculated on an 8-foot ceiling. It suggests considering higher capacity for higher ceilings but does not publish a numeric formula, so this Tool refuses to invent one.
No. Those decisions require a responsible load calculation and equipment-selection workflow. ACCA separates Manual J load calculation from Manual S equipment selection.
The room identity, record revision, area source and method, reviewer, normalized area, chart band, exposure, occupancy, kitchen status, and each adjustment remain visible and exportable.
About Room AC Capacity Screen
Use this Tool for one bounded consumer room-air-conditioner cooling screen. Bring a completed room-area record, its source and method, an 8-foot ceiling basis, exposure, regular occupancy, kitchen status, and reviewer. The result reproduces the current EPA ENERGY STAR chart; it is not a heating or whole-home load, Manual J calculation, Manual S equipment selection, higher-ceiling formula, product fit check, or installation approval.
