Heating the house, one winter month
Today's way
Heat the whole house and hope
- Thermostat at 70° all night, quilts piled on top
- Whole house at 70° all day, so you can sit in shirtsleeves
- Cold air pouring under doors you never open
- Little leaks around windows and outlets nobody's found
- Curtains left open after dark
The heating billabout $140
Mama's way
Warm the person, then the room
- Build the bed from the bottom up, thermostat down 3–5° at night Rule 82−$4–10
- Dress for the room: layers, wool socks, a lap quilt Rule 83−$6–14
- A rolled towel under the doors you don't use Rule 86−$2–6
- Find drafts with a tissue, seal with a few dollars of caulk Rule 87−$5–14
- Sun in by day, curtains shut at dusk Rule 88−$2–7
The heating billabout $89–121
Same house, same winter. Just warmer people.
Typical, not guaranteed. Each rule's yearly "What it saves" range in the book, spread over a five-month heating season on a modest $700-a-year heating bill (EIA, DOE Energy Saver). Your house, your fuel and your climate decide what you really save.