Sizing
10 min readWhat Size Generator Do I Need?
A static load-based planning method, sourced chart-arithmetic example, and blank worksheet.
Read guideStandby Generator Guide / Research library
Whole House Generator Sizing Guides: Loads & kW
A home’s floor area or appliance count does not reveal its generator requirement. These guides explain what data to collect, how model and fuel ratings differ, and what a qualified local professional should evaluate. The site provides static references and worksheets—not automated sizing recommendations.
8 research guides Independently edited
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Find the details that matter.
Open a guide to see its source links, documented assumptions and limitations before making decisions.
Sizing
8 min readAppliance Wattage Chart
28 approximate manufacturer-published appliance references with scope caveats.
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6 min readGenerator Size for a 2,000 Sq. Ft. Home
See why floor area alone cannot determine capacity and which equipment data matters.
Read guideSizing
6 min readHVAC and Generator Sizing
Collect exact HVAC model, starting, controls, and auxiliary-heat information.
Read guideSizing
6 min readWell Pump and Generator Planning
Use the pump and control data; treat generic manufacturer ranges as references only.
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7 min readWhole-Home vs. Essential-Load Backup
Compare circuit priorities, transfer arrangements, load management, and quote scope.
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8 min readGenerator Load Management
See how priority loads, shedding, lockouts, and smart sequencing can control large demand without creating extra capacity.
Read guideSizing
7 min readUnderstanding Generator Ratings
Read exact model, fuel, phase, voltage, rating conditions, and site limits.
Read guideWhat size whole house generator do I need?
House square footage is not a dependable kW recommendation. Begin with the load-based sizing guide, compare actual equipment nameplates and motor-starting demand, then use the whole house generator sizing planner to organize scenarios. A qualified professional must verify the final design and fuel supply.
How to use these guides
Start with the load-based guide. Gather exact appliance nameplates and manuals, list which loads may run together, and use the appliance wattage reference only as a generic manufacturer-published estimate when exact data is unavailable. Then ask a qualified local professional to assess the generator, fuel supply, transfer equipment, site conditions, and local requirements.
The interactive load planner adds transparent planning scenarios to these static guides. We do not use a universal multiplier or floor-area rule to recommend a purchase. A generator’s selected rating and backed-up-load plan influence the equipment and installation scope, but only a property-specific assessment can determine whether a proposed design fits.