DIY atmospheric water for homes with poor tap quality

The Air-to-Water Home Guide documents how cost-conscious households harvest drinking water from indoor humidity using HVAC condensate, off-the-shelf filtration, and cited safety limits—not $3,000 countertop machines.

Pillar hubs: 2
Guides: 5
Calculators: 1

DIY atmospheric water generator parts list — master bill of materials.

Pillar topics

Air-to-Water Systems
Physics, components, and safety limits of residential atmospheric water harvesting.
Budget Water Harvesting
Low-cost plumbing, storage, and testing workflows for condensation-based drinking water.

Tools

Daily Condensate Yield Calculator

Estimate liters per day from relative humidity, temperature, and collector area before buying hardware.

How we work

1. Model yield
Run the condensate calculator with local RH and runtime hours.
2. Design treatment
Size pumps and UV for measured flow, not marketing peak rates.
3. Verify output
Log TDS and periodic coliform screens before serving guests.

FAQ

When an HVAC coil already runs daily, marginal cost is filtration and power for pumps—not refrigerant capital. Break-even depends on yield; use the calculator before buying hardware.

No. Biofilm and opportunistic pathogens can colonize drip pans. A documented treatment train—filtration plus UV at rated flow—is the minimum for drinking.

Read the parts list decision guide, model yield, then read sanitation and testing explainers before turning on a pump.

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Ready to build? Open the parts list guide.