Field guides
Decision-first explanations with visible assumptions, practical checklists and links to primary references.
01
Planning
02
The right order for home energy upgrades
A practical sequence that reduces guesswork: measure, seal, insulate, then size equipment.
Envelope
03
How to evaluate an insulation estimate
Translate R-values, square footage and access conditions into a quote you can compare.
HVAC
04
A homeowner’s heat-pump bid checklist
Questions that expose whether two heat-pump proposals are actually comparable.
Method
Build a useful energy baseline from utility bills
Turn twelve months of bills into a simple benchmark before spending on upgrades.