Home Generator Sizing Guide
The paid guide contains sizing examples that need correction. While we review it, start with the free planning tools below. No purchase or signup is needed.
Use the free sizing calculator →Plan Your Next Step Without Buying a Guide
List the appliances you want to run together and gather their actual running and starting requirements. An estimate can help organize the decision; it does not replace a qualified installer's load assessment or guarantee that a generator will start every load.
Estimate Your Essential Loads
Use the free calculator to organize appliance requirements. Confirm uncertain motor loads, overlapping starts, and 240V requirements before choosing equipment.
Open the sizing calculator →Understand Installation Costs
Separate the equipment price from transfer equipment, fuel work, permits, and other site-specific installation costs.
Read the standby cost guide →Compare by Situation
Explore automatic home backup, manually managed essentials, or smaller portable and RV options, with fit and limitations.
Compare generator options →Plan Maintenance
Use the free checklist to organize service and storage tasks, then follow your exact model's manual for intervals and procedures.
Read the maintenance checklist →Already Purchased the PDF?
For help with a previous purchase or a download link, contact [email protected] and include your order reference.
Use a licensed installer to confirm sizing and connection requirements before acting on a load estimate.