The thermostat is at 73°F. Your feet are still cold. The bill is $200+. Because you are heating the air. Not yourself.
Every degree up = 2–3% more on your bill. But warmth has 4 channels: air temp, body temp, surface temp, psychological. The thermostat only controls one.
You can feel warm at 68°F with the right layers, warm surfaces, and lighting. Or cold at 74°F in a drafty room with bare floors. The plan optimizes all 4 channels.
$150 in November. $200 in December. $280 in January. Each degree down from 74 to 68 saves 12–18%. That's $35–50/month without feeling colder.
The thermostat setback + body-warming + insulation fixes stack. Combined: 15–35% heating cost reduction. The exact percentage depends on your home, but every home has savings.
Which changes matter most? Depends on your home. Old apartment: seal drafts first. New house: thermostat schedule first. The plan prioritizes for YOU.
The prioritization: drafty home = sealing first (biggest leak = biggest fix). Tight home = thermostat + body warming first. The plan assesses YOUR situation.
4 strategies: (1) WARM YOUR BODY (layers, hot drinks, heated blanket), (2) INSULATE (rugs, curtains, draft stops), (3) OPTIMIZE HEATING (schedule, fan), (4) COZY ENVIRONMENT (lighting, texture).
Each strategy addresses a different warmth channel. Together: you feel warmer at a lower thermostat setting. The comfort stays. The bill drops.
What You Get
Not 'turn up the thermostat.' Heat yourself, not the house. Save 15–35%. Feel warmer.
Body-Warming Plan
Layering system (base + mid + warm socks). Hot drink rotation (keeps core warm). Heated blanket (pennies/hr, replaces thermostat at night). The body-first approach.
Insulation Fixes
YOUR home: rugs on cold floors (which rooms, what type), curtains closed at sunset (traps 10–15% more heat), draft stops at doors/windows. Each fix: cost, impact, time.
Heating Optimization
YOUR system: thermostat setback schedule (sleep: 62–65°F, away: 60–65°F, home: 68°F). Ceiling fan reverse (pushes warm air down). Vent check (unblock furniture).
Cozy Environment
Free solar heat timing (which windows, what hours, open curtains for sun). Warm lighting (2700K bulbs = perceived 2–3°F warmer). Textiles that add warmth feeling.
Savings Estimate
YOUR bill and changes: estimated monthly reduction in dollars. Which fixes save the most. The ROI ranking so you start with the biggest impact.
Regenerate Anytime
Different home, new winter, moved? Run it again.
How It Works
From '$220/month and still cold' to '$155/month and MORE comfortable. Same home.'
1
Tell us about your winter setup
Heating type, last winter's bills, cold sensitivity, home type, and improvement budget. Each answer shapes the strategy priorities and savings estimate.
~2 minutes
2
AI builds the heat-saving plan
Our energy-efficiency engine diagnoses where your home loses heat, selects the highest-impact fixes for your budget, creates the body-warming strategy for your cold sensitivity, and estimates monthly savings.
~15 seconds
3
This week: free changes. This weekend: insulation. Next bill: savings.
Tonight: drop thermostat 2 degrees. Put on warm socks and a hoodie. Heated blanket on the couch. Tomorrow: close curtains at sunset (traps heat). This weekend: rug on the coldest floor, draft stop at the worst door. Next bill: $30–50 less. Same comfort. The 4 channels compensated for the 2 degrees.
Depends on starting point. Currently at 74°F with no other strategies: dropping to 68 + body warming + insulation = 15–25% savings. Already at 68 with some fixes: adding curtain timing + fan reverse + draft stops = another 10–15%. Every home has a savings layer.
Is an electric blanket safe to sleep with?
Modern electric blankets with auto-shutoff timers are safe for sleeping. Cost: 2–4 cents/hr (vs $0.50–1/hr for whole-house heating). Use the blanket, drop the thermostat 5°F at night. The math: $1.50/month for the blanket vs $15–25 saved on heating.
Does ceiling fan reverse really help?
Yes, measurably. Warm air pools at the ceiling (useless). Reverse mode (clockwise on low) pushes it down without a draft. Effect: 2–4°F warmer at floor level. Allows thermostat drop of 2°F. Free if you already have ceiling fans.
How much does warm lighting actually affect perceived temperature?
2–3°F of perceived warmth according to environmental psychology research. Warm light (2700K, soft white) signals 'warm' to the brain. Cool light (5000K, daylight) signals 'cold.' Swapping bulbs: $5–10 one-time. The cheapest comfort upgrade.
I rent and cannot make permanent changes — does this still work?
The majority of fixes are renter-friendly: rugs (lay on top), curtains (tension rods, no drilling), draft snakes (sit on floor), heated blanket (plug in), warm lighting (swap bulbs), layers (free). The only owner-only fixes: permanent weatherstripping and thermostat replacement.
Reviews
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