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Everything here is written from houses I designed, built, or had to fix.

Comfort comes from airflow, not tonnage. How to size, duct and control heating and cooling in a house.

Try Manual J LoadCalc: three free room-by-room load reports from your plans.

Sizing solar and storage for off-grid and on-grid homes, farms and businesses.

Being written now. Ask me about this topic and I’ll answer directly while the article catches up.

Generators, inverter-chargers and dual-fuel heat pumps. What actually keeps a house running.

Being written now. Ask me about this topic and I’ll answer directly while the article catches up.

Running a house and its power system remotely so it takes care of itself.

Being written now. Ask me about this topic and I’ll answer directly while the article catches up.

Designing the house so the power and HVAC can be small. Lessons from houses that could not go off-grid.